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Question 1
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A patient is attending for medical abortion. She is 15 weeks gestation. She has no known drug allergies. Which of the following is the most appropriate regarding antibiotic prophylaxis?
Your Answer: Stat Azithromycin 1g and metronidazole 800 mg orally at time of abortion
Explanation:If the patient has a negative Chlamydia screen then a stat dose of metronidazole monotherapy is appropriate. You do not know this patients Chlamydia status and therefore dual therapy with metronidazole + doxycycline or azithromycin is appropriate.
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This question is part of the following fields:
- Clinical Management
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Question 2
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A woman has undergone genetic testing due to her family history and has the BRCA 1 gene. What would you advise her lifetime risk of ovarian cancer is?
Your Answer: 40%
Explanation:The most common hereditary cancer in the breast ovarian cancer syndrome accounts for 90% of the hereditary cancers. It is due to mutations in the BRCA 1 and BRCA 2 genes, most commonly the BRCA 1 gene accounting for 70% life time risk of breast cancer and 40% life time risk of ovarian cancer.
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This question is part of the following fields:
- Genetics
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Question 3
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A 19-year-old primigravid woman, 34 weeks of gestation, came in for a routine blood test. Her platelet count is noted at 75x109/L (normal range is 150-400) . Which of the following can best explain the thrombocytopenia of this patient?
Your Answer: Incidental thrombocytopaenia of pregnancy.
Explanation:Incidental thrombocytopenia of pregnancy is the most common cause of thrombocytopenia in an otherwise uncomplicated pregnancy. The platelet count finding in this case is of little concern unless it falls below 50×109/L.
Immune thrombocytopenia is a less common cause of thrombocytopenia in pregnancy. The anti-platelet antibodies cam cross the placenta and pose a problem both to the mother and the foetus. Profound thrombocytopenia in the baby is a common finding of this condition.
Thrombocytopenia can occur in patients with severe pre-eclampsia. However, it is usually seen concurrent with other signs of severe disease.
Maternal antibodies that target the baby’s platelets can rarely cause thrombocytopenia in the mother. Instead, it can lead to severe coagulation and bleeding complications in the baby as a result of profound thrombocytopenia.
Systemic lupus erythematosus is unlikely to explain the thrombocytopenia in this patient.
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This question is part of the following fields:
- Obstetrics
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Question 4
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Question 5
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As part of your patient's infertility evaluation, you recommended a postcoital test.
As part of postcoital testing, she and her partner should have sexual intercourse on which day of her menstrual cycle?Your Answer: Day 14
Explanation:Post coital literally means “after intercourse” which is when this fertility test is conducted. The patient has intercourse at home usually between cycle days 12 and 15 (or a day around the LH surge as measured by urinary ovulation predictor kits). Afterwards, the female comes to the office and a sample of the cervical mucus is taken for microscopic examination.
The post coital fertility test (PCT) allows for evaluation of sperm in the cervical mucus and to determine the consistency of the mucus. Sperm must swim through the cervical mucus from the vagina, through the cervix, and into the uterus. Normal sperm will be active and swim in approximate straight lines through the mucus. If the mucus is too thick, sperm impedance can be observed.
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This question is part of the following fields:
- Gynaecology
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Question 6
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Which of the following microorganisms is considered the most frequently associated with septic shock in obstetrics and gynecology?
Your Answer: Escherichia coli
Explanation:Organisms frequently associated with obstetric sepsis include: beta haemolytic streptococci, Gram-negative rods such as Escherichia coli, Streptococcus pneumoniae and influenza A and B.
E. coli is the most common sepsis pathogen in pregnancy.
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This question is part of the following fields:
- Obstetrics
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Question 7
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Which one of the following aetiological factors causes a reduction in the risk of fibroids?
Your Answer: Pregnancy
Explanation:Risk of fibroids is more common among African ethnicity and is also related to obesity and early puberty. The role of combined oral contraceptive pills is still debatable and its results are conflicting, whereas the risk of fibroids decreases with the increase in number of pregnancies. i.e. multiparous women have a lower risk of fibroids.
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This question is part of the following fields:
- Clinical Management
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Question 8
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Examination of endometrial tissue obtained from a biopsy reveals simple columnar epithelium with no sub-nuclear vacuoles. The stroma is oedematous, & a tortuous gland contains secretions. These findings are consistent with which stage of the menstrual cycle?
Your Answer: Mid-secretory
Explanation:During mid secretory phase, the endometrium cells undergo distension, become more tortuous and are lined by columnar cells.
In the early proliferative phase, the glandular epithelium is cubo-columnar, while in the late proliferative phase, the glands increase in size, becoming tortuous and there is pseudostratification of the epithelium. -
This question is part of the following fields:
- Physiology
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Question 9
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A 30 year old women who is 24 weeks pregnant attends EPU due to suprapubic pain. Ultrasound shows a viable foetus and also a fibroid with a cystic fluid filled centre. What is the likely diagnosis?
Your Answer: Red degeneration of fibroid
Explanation:Red degeneration of fibroids is one of 4 methods of fibroid degeneration. Although uncommon outside pregnancy it is thought to be the most common form of fibroid degeneration during pregnancy and typically occurs in the 2nd trimester. It is thought to arise from the fibroid outgrowing its blood supply and haemorrhagic infarction occurs. Ultrasound will typically show a localised fluid collection (blood) within the fibroid.
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This question is part of the following fields:
- Clinical Management
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Question 10
Correct
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Which of the following is not caused by HPV?
Your Answer: Oesophageal cancer
Explanation:HPV infects the squamous cells that line the inner surfaces of these organs. For this reason, most HPV-related cancers are a type of cancer called squamous cell carcinoma. Some cervical cancers come from HPV infection of gland cells in the cervix and are called adenocarcinomas.
HPV-related cancers include:
Cervical cancer: Virtually all cervical cancers are caused by HPV. Routine screening can prevent most cervical cancers by allowing health care providers to find and remove precancerous cells before they develop into cancer. As a result, cervical cancer incidence rates in the United States are decreasing.
Oropharyngeal cancers: Most of these cancers, which develop in the throat (usually the tonsils or the back of the tongue), are caused by HPV (70% of those in the United States). The number of new cases is increasing each year, and oropharyngeal cancers are now the most common HPV-related cancer in the United States.
Anal cancer: Over 90% of anal cancers are caused by HPV. The number of new cases and deaths from anal cancer are increasing each year. Anal cancer is nearly twice as common in women as in men. Learn more about anal cancer statistics.
Penile cancer: Most penile cancers (over 60%) are caused by HPV.
Vaginal cancer: Most vaginal cancers (75%) are caused by HPV. Learn about symptoms of, and treatment for, vaginal cancer, a rare type of cancer.Vulvar cancer: Most vulvar cancers (70%) are caused by HPV.
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This question is part of the following fields:
- Gynaecology
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Question 11
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A 30-year-old woman in her 36 weeks of gestation, presents for her planned antenatal appointment.
On examination her blood pressure is 150/90 mmHg, in two consecutive readings 5 minutes apart.
Which among the following statements is true regarding gestational hypertension and pre-eclampsia?Your Answer: Pre-eclampsia involves other features in addition to the presence of hypertension
Explanation:Pre-eclampsia presents with other features in addition to the presence of hypertension, also it’s diagnosis cannot be made considered peripheral edema as the only presenting symptom. Proteinuria occurs more commonly in pre-eclampsia than in gestational hypertension and the latter is mostly asymptomatic.
Hypertensive disorders are found to complicate about 10% of all pregnancies. Common one among them is Gestational hypertension, which is defined as the new onset of hypertension after 20 weeks of gestation without any maternal or fetal features of pre-eclampsia, in this case BP will return to normal within three months of postpartum.
Types of hypertensive disorders during pregnancy:
1. Pregnancy-induced hypertension:
a. Systolic blood pressure (SBP) above 140 mm of Hg and diastolic hypertension above 90 mmHg occurring for the first time after the 20th week of pregnancy, which regresses postpartum.
b. The rise in systolic blood pressure above 25 mm of Hg or diastolic blood pressure above 15 mm of Hg from readings before pregnancy or in the first trimester.
2. Mild pre-eclampsia:
BP up to 170/110 mm of Hg in the absence of associated features.
3. Severe pre-eclampsia:
BP above 170/110 mm of Hg and along with features such as kidney impairment, thrombocytopenia, abnormal liver transaminase levels, persistent headache, epigastric tenderness or fetal compromise.
4. Essential (coincidental) hypertension:
Chronic underlying hypertension occurring before the onset of pregnancy or persisting after postpartum.
5. Pregnancy-aggravated hypertension:
Underlying hypertension which is worsened by pregnancy.To diagnose pre-eclampsia clinically, presence of one or more of the following symptoms are required along with a history of onset of hypertension after 20 weeks of gestation.
– Proteinuria: Above 300 mg/24 h or urine protein
reatinine ratio more than 30 mg/mmol.
– Renal insufficiency: serum/plasma creatinine above 0.09 mmol/L or oliguria.
– Liver disease: raised serum transaminases and severe epigastric or right upper quadrant pain.
– Neurological problems: convulsions (eclampsia); hyperreflexia with clonus; severe headaches with hyperreflexia; persistent visual disturbances (scotomata).
– Haematological disturbances like thrombocytopenia; disseminated intravascular coagulation; hemolysis. -
This question is part of the following fields:
- Obstetrics
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Question 12
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During pregnancy which one of the following laboratory parameters is decreased?
Your Answer: Platelet count
Explanation:In pregnancy, although it is a hypercoagulable state with an increase in clotting factors, the platelet count is decreased. Fibrinogen and erythrocyte sedimentation rate (ESR) may be both increased.
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This question is part of the following fields:
- Clinical Management
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Question 13
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In early pregnancy at what gestation does the Embryonic pole become visible on transvaginal ultrasound?
Your Answer: 5 weeks + 3 days
Explanation:The gestational sac can be visualized from as early as 4–5 weeks of gestation and the yolk sac at about 5 weeks (Figure 6.3). The embryo can be observed and measured at 5–6 weeks gestation.
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This question is part of the following fields:
- Biophysics
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Question 14
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A 30-year-old pregnant woman, at her 29th week of gestation, presents to physician with flu-like symptoms for the past 3 days along with runny nose, mild headache and she feels achy. She also has mild fever and diffuse rash all over her body. She is concerned about the health of her baby and wants to know if there are any safe medications which will make her feel better in a short time. She has received tetanus vaccination as part of antenatal care program since she immigrated at the end of her first trimester from Romania. Patient is otherwise healthy.
Considering the symptoms and travel history of this patient, she is at higher risk of giving birth to a newborn with which of the following options?Your Answer: Wide pulse pressure
Explanation:This pregnant woman likely has an infection with the rubella virus, which increases the risk of congenital rubella syndrome in her newborn. congenital heart diseases, particularly patent ductus arteriosus (PDA) is a part of this syndrome. Persistence of a patent vessel between the left pulmonary artery and aorta which is supposed to closes in the first 18 hours functionally and in the first 2–3 days of life anatomically is called as PDA.
Normally there is right to left shunting in utero, but in case of PDA blood is shunted from the left (aorta) to the right (pulmonary artery) due to the decrease in pulmonary vascular resistance after birth. This causes right ventricular hypertrophy, if left untreated it can lead to left ventricular hypertrophy and heart failure. There will be a continuous machine-like murmur, heard over the left upper sternal border, as the blood is shunted throughout cardiac cycle. Diastolic BP becomes lower than normal, leading to a higher pulse pressure which is felt as a bounding pulse due to the lost volume from aorta. Though PDA is a non-cyanotic condition, it may lead to Eisenmenger’s syndrome in which R to L shunting persists, resulting in cyanosis, clubbing and polycythemia. Treatment with nonsteroidal anti-inflammatory drugs like indomethacin can close patent PDA. Other symptoms in infants born with rubella syndrome are microcephaly and cataract.
The characteristic feature of an atrial septal defect or ASD, which is a congenital heart disease presenting as an opening in the septa between right and left atria, is a single fixed S2. There will be a delay in closure of the pulmonic valve, due to the excess amount of blood diverted to the right side.
Brachial-femoral delay is a finding in coarctation of aorta, which presents as hypertension in the upper extremities and hypotension in the lower extremities.
A double split S2 is a physiological finding caused by the closure of pulmonary and aortic valves on inspiration.
PDA and pulmonary artery stenosis are the most common cardiac defects reported along with congenital rubella syndrome (CRS), whereas tricuspid valve regurgitation is never reported along with it.
Learning objective: is associated with a continuous machine-like murmur heard over the left upper sternal border, bounding pulse and an increased pulse pressure are the usual symptoms associated with patent ductus arteriosus (PDA), which is mostly seen along with congenital rubella syndrome.
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This question is part of the following fields:
- Obstetrics
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Question 15
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A 23-year-old woman with diffuse pelvic pain and vaginal bleeding presents to the emergency room. She claims that it is around the time that she usually has her period. She has previously experienced defecation discomfort, dyspareunia, and dysmenorrhea. The patient claims that she has previously experienced similar symptoms, but that the agony has suddenly become unbearable.
Her abdomen is soft, with normal bowel sounds and no rebound soreness, according to her physical examination. There is no costovertebral discomfort and the patient does not guard. Blood in the posterior vaginal vault, a closed os, and no palpable masses or cervical motion pain are all findings on her pelvic examination.
What is the most likely diagnosis?Your Answer: Endometriosis
Explanation:Endometriosis is defined as the presence of normal endometrial mucosa (glands and stroma) abnormally implanted in locations other than the uterine cavity. Approximately 30-40% of women with endometriosis will be sub fertile. About one third of women with endometriosis remain asymptomatic. When they do occur, symptoms, such as the following, typically reflect the area of involvement:
– Dysmenorrhea
– Heavy or irregular bleeding
– Pelvic pain
– Lower abdominal or back pain
– Dyspareunia
– Dyschezia (pain on defecation) – Often with cycles of diarrhoea and constipation
– Bloating, nausea, and vomiting
– Inguinal pain
– Pain on micturition and/or urinary frequency
– Pain during exercisePregnancy, appendicitis, ureteral colic and ruptured ectopic pregnancy all do not present with dysmenorrhea, pain on defecation and dyspareunia. Presence of a non tender, soft abdomen also rules out these conditions.
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This question is part of the following fields:
- Gynaecology
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Question 16
Correct
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The best confirmatory test for Turner's syndrome is done by:
Your Answer: Chromosomal analysis (Karyotyping)
Explanation:Standard karyotyping is the best confirmatory test for the diagnosis of Turner syndrome among patients who have some doubtful clinical presentations. It is done on peripheral blood mononuclear cells.
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This question is part of the following fields:
- Embryology
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Question 17
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A 60-year-old lady complains of a mild discomfort in her lower abdomen. She attained menopause 6 years ago whereas her last vaginal examination 2 years prior, was normal. She now has a palpable mass measuring 8cm in diameter in the left ovarian area.
Which is the best next step in her management?Your Answer: Admission to hospital for early surgical exploration.
Explanation:This lady should be admitted to hospital for early surgical exploration. Taking into account her age, mild abdominal discomfort and a palpable lower abdominal mass, it is imperative that ovarian malignancy be ruled out as soon as possible. Patients with ovarian malignancy often present in advanced stages of cancer as the symptoms tend to be occult and non-specific. Other things to include in her workup would be her CA125 level. Any form of hormonal therapy is contraindicated until ovarian malignancy has been ruled out. A pap smear is not relevant here since we are suspecting an ovarian malignancy rather than cervical. Evaluation of her mass takes priority over an assessment for osteoporosis.
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This question is part of the following fields:
- Gynaecology
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Question 18
Correct
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A 20-year-old female patient who is experiencing pelvic pain is being cared for at your clinic. She describes bilateral pain that began gradually and was accompanied by fever, vaginal discharge, and mild dysuria.
Her pelvic examination demonstrates uterine, adnexal, and cervical motion tenderness.
Which of the following is the most likely cause of the pain?Your Answer: PID
Explanation:Pelvic inflammatory disease (PID) refers to acute and subclinical infection of the upper genital tract in women, involving any or all of the uterus, fallopian tubes, and ovaries; this is often accompanied by involvement of the neighbouring pelvic organs. It results in endometritis, salpingitis, oophoritis, peritonitis, perihepatitis, and/or tubo-ovarian abscess.
Lower abdominal pain is the cardinal presenting symptom in women with PID. The abdominal pain is usually bilateral and rarely of more than two weeks’ duration. The character of the pain is variable, and in some cases, may be quite subtle. The recent onset of pain that worsens during coitus or with jarring movement may be the only presenting symptom of PID. The onset of pain during or shortly after menses is particularly suggestive.
Other non-specific complaints include urinary frequency and abnormal vaginal discharge.
Ovarian cyst, uterine leiomyoma, appendicitis or ectopic pregnancy do not present with fever and vaginal discharge although tenderness is noted in appendicitis and ectopic pregnancy. Therefore, these options do not explain the patient’s symptoms.
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This question is part of the following fields:
- Gynaecology
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Question 19
Correct
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Question 20
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To avoid potential haemolysis, Anti D immunoglobulin should be administered to which of the following?
Your Answer: Rhesus negative mother, non-sensitised, fetal cord blood Rh positive
Explanation:The Rhesus status of a mother is important in pregnancy and even abortion. The exposure of an Rh-negative mother exposed to Rh antigens from a positive foetus, will influence the development of anti-Rh antibodies. This may cause problems in subsequent pregnancies leading to haemolysis in the newborn. Rh Anti RhD- globulin is therefore given to non-sensitised Rh-negative mothers who give birth to Rh-positive children to prevent the formation of anti-Rh antibodies. Anti RhD globulin is not useful for already sensitized, or RhD positive mothers; its administration could result in maternal blood being bound and taken out of circulation.
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This question is part of the following fields:
- Immunology
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Question 21
Correct
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Physiological changes in the reproductive system include:
Your Answer: The uterus 1st enlarges by hyperplasia then by hypertrophy
Explanation:Although uterine growth during the first few weeks of pregnancy is accomplished by increased numbers of smooth muscle cells (i.e. hyperplasia) and a smaller contribution from increased cell size (i.e. hypertrophy), the predominant growth of the uterus during pregnancy is by way of stretch‐induced myometrial hypertrophy. This ongoing process of stretch‐induced tissue remodelling and smooth muscle hypertrophy is accompanied by the lack of uterine contractions during most of gestation to accommodate the developing foetus (phase 0 of parturition). Phase 1 of parturition represents myometrial activation. The final stages of pregnancy are characterized by increases in spontaneous low‐amplitude contractions that gradually increase in frequency, rhythmicity and strength, normally culminating in labour and delivery of the foetus at term (phase 2 of parturition).
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This question is part of the following fields:
- Physiology
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Question 22
Correct
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Regarding feto-maternal blood circulation, which of the following statements is false?
Your Answer: At term the placenta receives 70% of uterine blood flow
Explanation:The placenta is important for regulating feto-maternal blood circulation, ensuring that the two circulatory systems do not come into direct contact. The placenta receives 70-80% of the uterine blood flow into the decidual spiral arteries where nutrient, waste and gaseous exchange with fetal blood takes place via the villous core fetal vessels. Deoxygenated blood arrives at the placenta via two uterine arteries while oxygenated, nutrient-rich blood is circulated back to the foetus via a single umbilical vein. The pressure in the umbilical vein is about 20 mmHg.
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This question is part of the following fields:
- Embryology
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Question 23
Correct
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Regarding the study of the prognosis of a disease, which of the following studies is most appropriate?
Your Answer: Cohort Study
Explanation:Cohort studies are the most appropriate study design to study the prognosis of a disease. A group of patients with the same condition are chosen and their baseline information is taken. The group is then followed up over time to see which patients live or die.
Case-control studies can also be useful where a group of individuals that have survived a condition are compared with cases of those who have died. Prognostic factors that distinguish the two groups are identified. This method, however, is limited by bias and the accuracy of medical information present. -
This question is part of the following fields:
- Epidemiology
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Question 24
Correct
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A 27-year-old woman admitted with per vaginal bleeding and left sided pelvic pain for 2 days. There was no history of fever. She gave a history of absent periods for past 8 weeks. Abdominal examination revealed guarding and rebound tenderness in left iliac region. There was left sided cervical excitation on vaginal examination. What is the most probable diagnosis?
Your Answer: Ectopic Pregnancy
Explanation:History of amenorrhoea, abdominal and vaginal examination are more favour of ectopic pregnancy. Endometriosis usually has a chronic cause and dysmenorrhoea. Salpingitis usually presents with fever. Ovarian torsion and ovarian tumours have different clinical presentations.
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This question is part of the following fields:
- Gynaecology
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Question 25
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Which of the following is the primary stimulator of uterine involution following child birth?
Your Answer: Oxytocin
Explanation:Oxytocin stimulates the myoepithelial cells in the breast causing the milk production. It also helps augment contractions in labour and cause uterine involution after childbirth.
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This question is part of the following fields:
- Endocrinology
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Question 26
Correct
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Question 27
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A 22 year old woman had a C-section two hours ago. However, she has not urinated since then and claims she had no urinary complaints before the operation. Upon inspection she appears unwell and her abdomen is distended and tender suprapubically and in the left flank. Auscultation reveals no bowel sounds. Further examination reveals the following: Temp=37.5C, BP=94/73mmHg, Pulse=116bpm, Sat=97%. What's the most likely complication?
Your Answer: Urinary tract injury
Explanation:Urologic injury is the most common injury at the time of either obstetric or gynaecologic surgery, with the bladder being the most frequent organ damaged. Risk factors for bladder injury during caesarean section include previous caesarean delivery, adhesions, emergency caesarean delivery, and caesarean section performed during the second stage of labour.
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This question is part of the following fields:
- Obstetrics
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Question 28
Correct
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Normal physiological gut herniation occurs at how many weeks gestation?
Your Answer: 8 weeks
Explanation:At about 8-12 weeks gestation, normal physiological herniation of the fetal bowel occurs. The midgut protrudes into the base of the umbilicus, and undergoes a 90-degree anticlockwise rotation. When the abdominal cavity enlarges enough to fit the developing midgut, the intestines undergo another 180-degree rotation before returning to the abdominal cavity.
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This question is part of the following fields:
- Embryology
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Question 29
Incorrect
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A 28-year-old woman at 35 weeks gestation who is gravida 2 para 1, presented to the labour and delivery department since she has been having regular, painful contractions over the past 3 hours. Upon interview and history-taking, it was noted that the patient has had no prenatal care during this pregnancy. She also has no chronic medical conditions, and her only surgery was a low transverse caesarean delivery 2 years ago.
Upon admission, her cervix is 7 cm dilated and 100% effaced with the fetal head at +2 station. Fetal heart rate tracing is category 1.
Administration of epidural analgesia was performed, and the patient was relieved from pain due to the contractions. There was also rupture of membranes which resulted in bright-red amniotic fluid.
Further examination was done and her results were:
Blood pressure is 130/80 mmHg
Pulse is 112/min
Which of the following is most likely considered as the cause of the fetal heart rate tracing?Your Answer: Preterm gestation
Correct Answer: Fetal blood loss
Explanation:Fetal heart rate tracings (FHR) under category I include all of the following:
– baseline rate 110– 160 bpm
– baseline FHR variability moderate
– accelerations present or absent
– late or variable decelerations absent
– early decelerations present or absentThe onset of fetal bleeding is marked by a tachycardia followed by a bradycardia with intermittent accelerations or decelerations. Small amounts of vaginal bleeding associated with FHR abnormalities should raise the suspicion of fetal haemorrhage. This condition demands prompt delivery and immediate reexpansion of the neonatal blood volume.
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This question is part of the following fields:
- Obstetrics
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Question 30
Correct
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You are asked to assess a patients perineal tear following labour by vaginal delivery. You note a laceration that extends through the vaginal mucosa into the perineal muscle and fascia. The external anal sphincter appears to be in tact. How would you classify this tear?
Your Answer: 2nd
Explanation:If the external anal sphincter is in tact then this is a 1st or 2nd degree tear. As the perineal muscles are involved this is 2nd degree tear.
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This question is part of the following fields:
- Anatomy
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Question 31
Correct
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Among the statements given below which one is correct regarding shoulder dystocia?
Your Answer: Erb palsy is common fetal injury
Explanation:Shoulder dystocia occurs when the bisacromial diameter, which is the breadth of the shoulders, exceed the diameter of pelvic inlet. This typically results in a bony impaction of the anterior shoulder against the maternal symphysis pubis, instead of an arrest at the pelvic inlet. Brachial plexus palsies including Erb’s palsy is the most common foetal injury associated with shoulder dystocia.
It is not hyper-extension but the hyper-flexion of maternal legs tightly on her abdomen, called as McRoberts manoeuvre, which facilitates delivery during shoulder dystocia. This technique is effective as it increases the mobility of sacroiliac joint during pregnancy, which allows the rotation of pelvis and thereby facilitating the release of fetal shoulder.
If this manoeuvre does not succeed, another technique called suprapubic pressure is done where an assistant applies pressure on the lower abdomen and gently pulls the delivered head. This technique is useful in about 42% of cases with shoulder dystocia.Maternal diabetes mellitus and foetal macrosomia both are a risk factor for shoulder dystocia.
Administration of epidural anaesthesia during labour increases the possibility of shoulder dystocia.
Risk of shoulder dystocia may increase with Oxytocin augmentation also.
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This question is part of the following fields:
- Obstetrics
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Question 32
Correct
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Pregnancy is associated with all of the following, EXCEPT:
Your Answer: Increased peripheral resistance
Explanation:A variety of changes in the cardiovascular system occur during normal pregnancy, including increases in cardiac output, arterial compliance, extracellular fluid volume and decreases in blood pressure (BP) and total peripheral resistance.
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This question is part of the following fields:
- Physiology
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Question 33
Correct
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Regarding the pelvic outlet, what structure marks the posterior boundary?
Your Answer: Tip of the coccyx
Explanation:The bony pelvis is made up of a girdle with a central canal. The rim that surrounds the upper opening of the canal is called the pelvic inlet, while the lower rim is the called the pelvic outlet. The pelvic outlet is diamond-shaped and is bounded posteriorly by the tip of the sacrum, and anteriorly by the pubic symphysis, with its lateral boundaries being the ischial tuberosities and the sacrotuberous ligament.
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This question is part of the following fields:
- Anatomy
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Question 34
Correct
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All of the following statements regarding human chorionic gonadotrophin are true except::
Your Answer: It's level doubles every 48 hours in ectopic pregnancy
Explanation:In normal pregnancy the levels of hCG doubles after every 48-72 hours but in case of ectopic pregnancy the levels of hCG are lower than the normal. It is produced by the placenta and its main role is nourishment of the egg after implantation. Its levels reached a peak at 8-10 weeks of pregnancy and after that the levels decreases for the remainder of pregnancy. In hydatiform mole and trophoblastic diseases its the main hormone for diagnosis of the disease because the levels are highly elevated.
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This question is part of the following fields:
- Physiology
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Question 35
Correct
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Sertoli cells contain receptors to which hormone?
Your Answer: FSH
Explanation:Sertoli cells contain receptors for FSH. In response to this Sertoli cells synthesize inhibin, androgen binding proteins and anti Mullerian hormone all which are connected to the reproduction cycle.
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This question is part of the following fields:
- Anatomy
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Question 36
Incorrect
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A 24-year-old primigravid woman comes to the office to establish prenatal care at 14 weeks gestation. Patient has had no vaginal bleeding or cramping, no chronic medical conditions, and her only medication is a daily dose of prenatal vitamin. Patient follows a vegan diet and drinks 2 cups of coffee in the morning, also she is an avid runner who runs 5 miles most days. Patient does not use tobacco, alcohol or any other illicit drugs.
On physical examination her vital signs are normal, with a pre-pregnancy BMI of 22 kg/m2.
Transvaginal ultrasound shows a single intrauterine gestation with a heart rate of 155/min.
Among the following possible lifestyle modifications needed during pregnancy, which is the most appropriate recommendation for this patient?Your Answer: Discontinue the vegan diet
Correct Answer: Increase caloric intake by about 350 kcal/day
Explanation:Nutrition in pregnancy
Weight gain must be:
– In patients <18.5 kg/m2, there should be an increase of 12.7 - 18 kg (28-40 lb)
– In patients 18.5 – 24.9 kg/m2 there should be an increase of 11.4 – 15.9 kg (25-35 lb)
– In patients 25 – 29.9 kg/m2 there should be an increase of 6.8 – 11.4 kg (15-25 lb)
– In patients ≥30 kg/m2 there should be an increase of 5 – 9 kg (11-20 lb)Supplementation required:
– Intake of daily prenatal vitamin
– Additional specific supplements as indicated
– Avoidance of harmful substances like drugs, alcohol, etc
– Substance abuse counseling
– Avoidance of fish with high mercury levels
– Moderating caffeine intakeFood safety:
– Avoid undercooked meat, fish & eggs
– Clean raw fruits & vegetables before consuming
– Avoid unpasteurized dairy productsNutrition in pregnancy is addressed at the initial prenatal visit based on pre-pregnancy BMI. Appropriate weight gain for a women with a normal pre-pregnancy BMI of 18.5 – 24.9 kg/m2 should be 11.4 – 15.9 kg (25-35 lb) during pregnancy. This weight gain is equivalent to the increasing caloric intake of 350 kcal/day during the second and 450 kcal/day during the third trimesters. Patients following any specific diets like veganism can continue their usual diet throughout pregnancy as long as it contains a well-balanced quantity of protein, carbohydrates and fats.
Vitamin and mineral supplementation during pregnancy is a single, daily prenatal vitamin recommended for majority of pregnant women as it helps to fulfill most of the daily vitamin and mineral supplementation requirements. In case of patients with vitamin or mineral deficiencies like iron, calcium, etc, a specific supplementation of the deficit vitamin/mineral only is required rather than multiple prenatal vitamins to avoid consuming harmful amounts of other vitamins like vitamin A. Vegans, who are at risk for some vitamin and mineral deficiencies like vitamin B12, calcium, iron, etc, secondary to lack of meat consumption, may require supplementation.
Pregnant women are counselled on avoidance of harmful substances like alcohol, drugs, etc and substances like fish with high mercury levels. Although high caffeine intake during pregnancy can be harmful, a moderate intake ie, 1 or 2 cups of coffee a day is thought to be safe.
Safe handling of food is important because some food products are found to result in congenital infection and intrauterine fetal demise. Patients are also counselled to avoid undercooked meat, fish, and eggs; to thoroughly clean raw fruits and vegetables and to avoid consumption of unpasteurized dairy products.
By maintaining a proper maternal nutrition during pregnancy, patients are provide appropriate nutrition to the fetal and thereby reducing the risk of pregnancy related complications like low birth weight, preterm delivery, etc.
Pregnant patients are counseled to avoid exercises like contact sports, downhill skiing, etc which increases the risk of abdominal trauma resulting in increased risk of placental abruption. But those patients with an uncomplicated pregnancy, who are already accustomed with long-duration, high-intensity exercise like running 5 miles/day, as in the given case, can continue with their regimen if tolerated.
Proper nutrition in pregnancy includes appropriate weight gain, supplementation of vitamins and minerals, avoidance of any harmful substances, and safe handling of food. Patients with a normal pre-pregnancy BMI should gain around 11.4-15.9 kg (25-35 lb) during pregnancy by increasing their caloric intake by 350 kcal/day in the second and 450 kcal/day in the third trimesters.
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This question is part of the following fields:
- Obstetrics
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Question 37
Incorrect
-
Regarding monozygotic twins, all of the following are correct, EXCEPT:
Your Answer: Has a constant incidence of 1:250 births
Correct Answer: Has a constant incidence 1:600 births
Explanation:The incidence of monozygotic twins is constant worldwide (approximately 4 per 1000 births). Approximately two thirds of twins are dizygotic.
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This question is part of the following fields:
- Genetics
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Question 38
Correct
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During the filling phase of micturition. At what bladder volume is the first urge to void felt?
Your Answer: 150ml
Explanation:Micturition is defined as a process of expelling urine from the body. It is caused by the reflex contraction of detrusor muscle. Urinary bladder is a hollow muscular organ which can store 400-600ml of urine until it is expelled from the body. The first urge to urinate is felt when the bladder is filled with around 150ml of urine. The reflex action is initiated when the stretch receptors located in the bladder wall are stimulated. The afferent fibres pass to the pelvic splanchnic nerves to the 2nd, 3rd, and 4th sacral segments and some pass through the hypogastric plexus to the first and second lumbar segments of the spinal cord. Efferent pathways from the 2nd, 3rd, and 4th sacral segments leave the cords and through the splanchnic nerves and inferior hypogastric plexus supplies the smooth muscle of the bladder i.e. detrusor muscle. Detrusor muscle contracts and the sphincters are relaxed.
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This question is part of the following fields:
- Anatomy
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Question 39
Incorrect
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All of the following statements are considered correct regarding Down syndrome screening in a 40-year-old pregnant woman, except:
Your Answer: Without dating ultrasound, second trimester serum screening test has detection rate of 65 percent
Correct Answer: Dating ultrasound along with second trimester serum screening test has detection rate of 97 percent
Explanation:Second-trimester ultrasound markers have low sensitivity and specificity for detecting Down syndrome, especially in a low-risk population.
The highest detection rate is acquired with ultrasound markers combined with gross anomalies. Although the detection rate with this combination of markers is high in a high-risk population (50 to 75 percent), false-positive rates are also high (22 percent for a 100 percent Down syndrome detection rate).
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This question is part of the following fields:
- Obstetrics
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Question 40
Correct
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Which structure reinforces the inguinal canal anterolaterally?
Your Answer: Internal oblique
Explanation:The anatomy of the inguinal canal is of surgical importance. In the male, the inguinal canal carries the spermatic cord, ilioinguinal nerve and important blood vessels, while in females the inguinal canal holds the round ligament, ilioinguinal nerve and blood vessels. The floor of the inguinal canal is made of the inguinal ligament (a thickened portion of the inguinal ligament), while the posterior wall is made of the transversalis muscle. The anterior wall is made of the external oblique aponeurosis, and the roof is made up of fibres of the internal oblique, transversus abdominis and its aponeurosis, and the conjoint tendon. This means that the anterolateral support structure of the inguinal canal would be the fibres of the internal oblique.
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This question is part of the following fields:
- Anatomy
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Question 41
Correct
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Question 42
Correct
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The amniotic fluid volume peaks at around 900ml. At what gestation does the amniotic fluid reach its maximum volume?
Your Answer: 35 weeks
Explanation:The amniotic fluid volume increases up to week 35 of gestation and then decreases from then to term.
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This question is part of the following fields:
- Clinical Management
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Question 43
Incorrect
-
All of the following factors increase the risk of endometrial cancer except which one?
Your Answer: Diabetes
Correct Answer: High Coffee Consumption
Explanation:The risk factors for uterine carcinoma include obesity, diabetes, Nulliparity, late menopause, unopposed oestrogen therapy, tamoxifen therapy, HRT and a family history of ovarian or uterine carcinoma.
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This question is part of the following fields:
- Epidemiology
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Question 44
Correct
-
Which of the following best describes Clomiphene?
Your Answer: Selective Oestrogen Receptor Modulator
Explanation:Clomiphene is a non-steroidal compound with tissue selective actions. It is used to induce ovulation in women who wish to become pregnant. It is a selective oestrogen receptor modulators.
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This question is part of the following fields:
- Pharmacology
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Question 45
Correct
-
When the presenting part of the foetus is at the level of ischial spines, this level is known as?
Your Answer: Station 0
Explanation:Station 0 – This is when the baby’s head is even with the ischial spines. The baby is said to be engaged when the largest part of the head has entered the pelvis.
If the presenting part lies above the ischial spines, the station is reported as a negative number from -1 to -5. -
This question is part of the following fields:
- Obstetrics
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Question 46
Correct
-
Which of the following causes of polyhydramnios is more common?
Your Answer: Idiopathic
Explanation:Maternal disorders, such as diabetes, in-utero infections, drug usage, placental abnormalities and fetal conditions as congenital and chromosomal abnormalities, Rh iso-immunization, and multiple gestations, are generally associated with polyhydramnios. Congenital abnormalities such as duodenal, oesophageal, or intestinal atresia of the foetus are the most common malformations that typically cause gastro-intestinal obstruction and interfere with fetal swallowing and/or absorption resulting with polyhydramnios. However, in about 70% of cases, none of the aforementioned aetiologies are causes of polyhydramnios, and it is referred to as idiopathic or isolated.
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This question is part of the following fields:
- Physiology
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Question 47
Incorrect
-
Which organism is the most common cause of puerperal sepsis?
Your Answer: Group B Streptococcus
Correct Answer: Group A Streptococcus
Explanation:Puerperal sepsis is defined as sepsis occurring after birth until 6 weeks postnatal. The most common cause of puerperal sepsis is Group A streptococcus. Until 1937, puerperal sepsis was the major cause of maternal mortality. The discovery of sulphonamides in 1935 and the simultaneous reduction in the virulence of the haemolytic streptococcus resulted in a dramatic fall in maternal mortality.
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This question is part of the following fields:
- Clinical Management
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Question 48
Correct
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Which of the following drugs is most appropriate to use to stimulate lactation?
Your Answer: Domperidone
Explanation:Domperidone and metoclopramide are D2 dopamine receptor antagonists. They are primarily used to promote gastric motility. They are also known as galactagogues and they promote the production of milk. Cabergoline and bromocriptine are prolactin inhibitors and they reduce milk production.
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This question is part of the following fields:
- Endocrinology
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Question 49
Correct
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A 24-year-old lady, who has not been able to conceive even after 2 years of unprotected intercourse, has come with concerns that she might have endometriosis. She is concerned because she has a friend who recently was diagnosed with it.
Which symptom profile would be expected if this woman actually has endometriosis?Your Answer: No abnormal bleeding or pain.
Explanation:The clinical features of endometriosis include dyspareunia, dysmenorrhea, dysuria, dyschezia as well as infertility. Pain is characteristically long-term, cyclic (often occurring the same time as menses) and can get progressively worse over time. Laparoscopy remains the standard for diagnosis. There are many cases in which endometriosis is only discovered at the time of the workup for infertility.
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This question is part of the following fields:
- Gynaecology
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Question 50
Incorrect
-
A 23-year-old primigravida who is at 41 weeks has been pushing for the past 2 and a half ours. The fetal head is at the introitus and is beginning to crown already. An episiotomy was seen to be necessary. The tear was observed to extend through the sphincter of the rectum but her rectal mucosa remains intact.
Which of the following is the most appropriate type of episiotomy to be performed?Your Answer: Mediolateral episiotomy
Correct Answer: Third-degree
Explanation:The episiotomy is a technique originally designed to reduce the incidence of severe perineal tears (third and fourth-degree) during labour. The general idea is to make a controlled incision in the perineum, for enlargement of the vaginal orifice, to facilitate difficult deliveries.
Below is the classification scale for the definitions of vaginal tears:
First degree involves the vaginal mucosa and perineal skin with no underlying tissue involvement.
Second degree includes underlying subcutaneous tissue and perineal muscles.
Third degree is where the anal sphincter musculature is involved in the tear. The third-degree tear can be further broken down based on the total area of anal sphincter involvement.
Fourth degree is where the tear extends through the rectal muscle into rectal mucosa. -
This question is part of the following fields:
- Obstetrics
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Question 51
Correct
-
Which of the following statements is true regarding renal blood flow in pregnancy?
Your Answer: Increases by approximately 50%
Explanation:Glomerular filtration rate (GFR) rises immediately after conception and increases by about 50 per cent overall, reaching its maximum at the end of the first trimester. GFR then falls by about 20 per cent in the third trimester, returning to pre-pregnancy levels within 12 weeks of delivery.
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This question is part of the following fields:
- Physiology
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Question 52
Incorrect
-
Which one of the following is true regarding routine prenatal screening ultrasonography before 24 weeks gestation?
Your Answer: It has been shown to reduce maternal mortality
Correct Answer: It has not been proven to have any significant benefits
Explanation:Routine ultrasonography at around 18-22 weeks gestation has become the standard of care in many communities. Acceptance is based on many factors, including patient preference, medical-legal pressure, and the perceived benefit by physicians. However, rigorous testing has found little scientific benefit for, or harm from, routine screening ultrasonography.
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This question is part of the following fields:
- Obstetrics
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Question 53
Incorrect
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Question 54
Incorrect
-
A 25-year-old lady is somewhat jaundiced, has black urine, and has pruritus of her abdomen skin at 30 weeks of pregnancy in her first pregnancy. Her blood pressure is 130/80 mmHg, her fundal height is 29 cm above the pubic symphysis, and her liquid volume is a little lower than expected. Laboratory investigations reveal:
Serum bilirubin (unconjugated): 5 mmol/L (0-10)
Serum bilirubin (conjugated): 12 mmol/L (0-5)
Serum alkaline phosphatase (ALP): 450U/L (30--350)
Serum alanine aminotransferase (ALT) 45U/L (<55)
Serum bile acids: 100 mmol/L (1-26)
The most likely cause for her presentation is?Your Answer: Acute fatty liver of pregnancy.
Correct Answer: Obstetric cholestasis.
Explanation:The correct answer is Obstetric Cholestasis.
The characteristics (elevated bile acids, conjugated bilirubin, and alkaline phosphatase (ALP) levels) are typical with obstetric cholestasis, which affects roughly 3-4 percent of pregnant women in Australia. Obstetric cholestasis is diagnosed when otherwise unexplained pruritus occurs in pregnancy and abnormal liver function tests (LFTs) and/or raised bile acids occur in the pregnant woman and both resolve after delivery. Pruritus that involves the palms and soles of the feet is particularly suggestive.
Liver function tests and bile acid levels measurements are used to validate this diagnosis.
All of the other diagnoses are theoretically possible, but unlikely.
On liver function tests, hepatitis A and acute fatty liver of pregnancy (which is frequently associated with severe vomiting in late pregnancy) usually show substantially worse hepatocellular damage.
Pre-eclampsia is connected with hypertension and proteinuria (along with changes in renal function and, in certain cases, thrombocytopenia), while cholelithiasis is associated with obstructive jaundice and pale stools due to a stone in the CBD. -
This question is part of the following fields:
- Obstetrics
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Question 55
Correct
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An 80 year old female patient comes to the hospital with stress urinary incontinence. Pelvic organ prolapse is not apparent on physical exam.
What is the most appropriate next step in management?Your Answer: Pelvic floor muscle exercise
Explanation:Stress incontinence is characterized by the involuntary loss of urine with increases in intra-abdominal pressure. It is the most common type of incontinence in younger women, but also occurs in older women. Key risk factors include childbirth, medications that relax the urethral sphincter, obesity, lung disease (from chronic cough), and prior pelvic surgeries. Numerous treatments are available, although few studies compare one treatment with another.
Pelvic floor muscle exercises are the mainstay of behavioural therapy for stress incontinence. Up to 38 percent of patients with stress incontinence alone who follow a pelvic floor muscle exercise regimen for at least three months experience a cure.
Routine urodynamic tests are not recommended for urinary incontinence. Surgery is reserved for refractory incontinence.
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This question is part of the following fields:
- Gynaecology
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Question 56
Incorrect
-
A 27-year-old woman who is 18 weeks pregnant presented to the emergency department due to a sudden onset of dyspnoea and pleuritic chest pain. She is known to have a previous history of deep venous thrombosis (DVT).
Which of the following is considered to be the most appropriate examination for this patient?Your Answer: CTPA
Correct Answer: Ventilation/perfusion scan
Explanation:Pulmonary embolism (PE) is a treatable disease caused by thrombus formation in the lung-vasculature, commonly from the lower extremity’s deep veins compromising the blood flow to the lungs.
Computed tomography of pulmonary arteries (CTPA) and ventilation-perfusion (V/Q) scan are the two most common and widely practiced testing modalities to diagnose pulmonary embolism.Pulmonary ventilation (V) and Perfusion (Q) scan, also known as lung V/Q scan, is a nuclear test that uses the perfusion scan to delineate the blood flow distribution and ventilation scan to measure airflow distribution in the lungs. The primary utilization of the V/Q scan is to help diagnose lung clots called pulmonary embolism. V/Q scan provides help in clinical decision-making by evaluating scans showing ventilation and perfusion in all areas of the lungs using radioactive tracers.
Ventilation-perfusion V/Q scanning is mostly indicated for a patient population in whom CTPA is contraindicated (pregnancy, renal insufficiency CKD stage 4 or more, or severe contrast allergy) or relatively inconclusive.
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This question is part of the following fields:
- Obstetrics
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Question 57
Correct
-
Regarding the foetus, which one of the following statements is true?
Your Answer: Fetal lie describes the long axis of the foetus to the long axis of the mother
Explanation:Fetal lie describes the relationship of the long axis of the foetus with respect to the long axis of the mother.
Coronal suture is the transverse suture separating the parietal bone from the frontal bone.
Umbilical cord is composed of two arteries and one vein. the vein carries the oxygenated blood, whereas the arteries contain the deoxygenated blood.
At the time of birth, the anterior fontanelle is open and appears as a soft jelly like structure. -
This question is part of the following fields:
- Anatomy
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Question 58
Correct
-
You are asked to see a 26 year old patient following her first visit to antenatal clinic. She is 9 weeks pregnant and bloods have shown her to be non-immune to Rubella. She is concerned about congenital rubella syndrome (CRS). What is the most appropriate advice to give?
Your Answer: Advise vaccination after birth regardless of breast feeding status
Explanation:For pregnant women who are screened and rubella antibody is not detected, rubella vaccination after pregnancy should be advised. Vaccination during pregnancy is contraindicated because of a theoretical risk that the vaccine itself could be teratogenic, as it is a live vaccine. No cases of congenital rubella syndrome resulting from vaccination during pregnancy have been reported. However, women who are vaccinated postpartum should be advised to use contraception for three months.
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This question is part of the following fields:
- Microbiology
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Question 59
Correct
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A 26 year old women presents for her 12 week scan. She has been pregnant once before but had a 1st trimester miscarriage. She reports no problems with this pregnancy and has had no vaginal bleeding or spotting. The scan shows no fetal cardiac activity and a small gestational sac. What is the likely diagnosis?
Your Answer: Missed Miscarriage
Explanation:As there has been no bleeding or expulsion of the products of conception this is a missed miscarriage
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This question is part of the following fields:
- Clinical Management
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Question 60
Incorrect
-
Which one of the following measurements is usually taken during clinical exam of the pelvis?
Your Answer: Transverse diameter of the inlet
Correct Answer: Shape of the pubic arch
Explanation:During pelvimetry, the shape of the pubic arch is usually examined. It helps in determining the outcome of the type of fetal delivery.
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This question is part of the following fields:
- Anatomy
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Question 61
Correct
-
A 33-year-old woman at 37 weeks of gestation presented to the emergency department due to breech presentation which was confirmed on ultrasound. There is also a failed external cephalic version.
Which of the following is considered the most appropriate next step in managing the patient's condition?Your Answer: Elective caesarean delivery at 38 weeks of gestation
Explanation:Breech presentation refers to the foetus in the longitudinal lie with the buttocks or lower extremity entering the pelvis first.
The current recommendation for the breech presentation at term includes offering external cephalic version (ECV) to those patients that meet criteria, and for those whom are not candidates or decline external cephalic version, a planned caesarean section for delivery sometime after 39 weeks.
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This question is part of the following fields:
- Obstetrics
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Question 62
Incorrect
-
Which of the following amniotic fluid indexes define oligohydramnios?
Your Answer: < 5 cm
Correct Answer:
Explanation:An assessment of amniotic fluid in pregnancy can be done by taking ultrasound measurements of the depth of amniotic fluid pockets. The combination of the measurements in four quadrants is called the amniotic fluid index (AFI), one of the major determinants of the biophysical profile which predicts pregnancy outcome. An AFI of less than 5 cm, or less than the 5th percentile is defined as oligohydramnios while an AFI of more than 25 cm is considered polyhydramnios.
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This question is part of the following fields:
- Biophysics
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Question 63
Correct
-
The following ultrasonic measurements may be used to confirm or establish gestational age:
Your Answer: Crown rump length
Explanation:Fetal ultrasound scanning is considered an essential part of routine antenatal care with first trimester scans recommended for confirming viability, accurate estimation of gestational age and determining the number of foetuses. Fetal crown-rump length (CRL) is measured in early pregnancy primarily to determine the gestation age (GA) of a foetus and is most reliable between 9+0 to 13+6 weeks’ gestation, but not beyond.
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This question is part of the following fields:
- Physiology
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Question 64
Correct
-
Which of the following statements is true regarding management of caesarean section?
Your Answer: Uterine closure can be in 1 or 2 layers
Explanation:Closure of the uterus should be performed in either single or double layers with continuous or interrupted sutures. The initial suture should be placed just lateral to the incision angle, and the closure continued to a point just lateral to the angle on the opposite side. A running stitch is often employed and this may be locked to improve haemostasis. If a second layer is used, an inverting suture or horizontal suture should overlap the myometrium. Once repaired, the incision is assessed for haemostasis and ‘figure-of-eight’
sutures can be employed to control bleeding. Peritoneal closure is unnecessary. Abdominal closure is performed in the anatomical planes with high strength, low reactivity materials, such as polyglycolic acid or polyglactin. Diamorphine is advised for intra and post op analgesia and oxytocin is advised to reduce blood loss. -
This question is part of the following fields:
- Clinical Management
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Question 65
Correct
-
With regard to the cell cycle. In what phase do chromatids get cleaved into chromosomes and pulled apart?
Your Answer: Anaphase
Explanation:Mitosis is the process during which cell division occurs. It is divided into 4 stages:
– The first stage is the prophase during which the chromosomes condense, mitotic spindles form and the chromosomes pair which each other.
– The second stage is the metaphase during which the chromatids align at the equatorial plane.
– The third stage is the anaphase during which the chromatids are separated into 2 daughter chromosomes.
– The fourth phase is the telophase during which the chromatids decondense and a new nuclear envelop forms around the each of the daughter chromosomes. Cytokinesis is the process during which the cell cytoplasm divides. -
This question is part of the following fields:
- Biochemistry
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Question 66
Correct
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What is the primary form of haemoglobin in a 6 week old foetus?
Your Answer: Hb Gower 1
Explanation:HB gower 1 is the predominant embryonic haemoglobin when the foetus is 6 weeks old and is replaced by adult haemoglobin by the age of 5 months post natally.
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This question is part of the following fields:
- Physiology
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Question 67
Correct
-
What is the normal pH value of an umbilical arterial sample of a new born term baby?
Your Answer: 7.2
Explanation:The normal range for a term baby is pH: 7.18 – 7.38, and preterm pH: 7.14 – 7.4. A pH below 7.1 therefore indicates acidosis.
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This question is part of the following fields:
- Physiology
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Question 68
Correct
-
Which Immunoglobulin (or antibody) is secreted in large amounts in breast milk?
Your Answer: IgA
Explanation:When considering immunoglobulins in neonates. There are only a few key points you are likely to be tested on. 1. IgA is resistant to stomach acid and found in large amounts in breast milk. 2. IgG is the only Ig that can cross the placenta so is key for passive neonatal immunity 3. When the neonate starts synthesising its own Ig it is IgM that is produced first.
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This question is part of the following fields:
- Immunology
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Question 69
Correct
-
Which of the following contraceptives primary mode of action is inhibition of ovulation?
Your Answer: Cerazette®
Explanation:Desogestrel only POPs work mainly by inhibiting ovulation. Cerazette Is the only brand in this list which belongs to this group.
Types of Progesterone Only Pills
1. Traditional (e.g. Femulen®, Micronor®, Norgeston®)
Main mode of action: thickening cervical mucus preventing sperm entry at neck of womb and may also cause anovulation but this effect variable and unreliable
2. Desogestrel (e.g. Cerazette®)
Main mode of action: inhibition of ovulation and also cause thickening of cervical mucus
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This question is part of the following fields:
- Clinical Management
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Question 70
Correct
-
A 25 year old female with her LRMP 8 weeks ago, presented with severe abdominal pain and per vaginal bleeding. On examination there was tenderness over her left iliac region. Her pulse rate was 110 bpm and blood pressure was 90/65mmHg. Which of the following is the most appropriate management?
Your Answer: Immediate laparotomy
Explanation:A ruptured ectopic pregnancy is the most probable diagnosis. As she is in shock (tachycardia and hypotension) immediate laparotomy is needed.
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This question is part of the following fields:
- Gynaecology
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Question 71
Incorrect
-
A 48-year-old woman presents to the clinic complaining of a one week history of light vaginal bleeding.
Her past medical history reveals she had a lumpectomy, postoperative radiotherapy, adjuvant chemotherapy and tamoxifen therapy 3 years ago as treatment for an oestrogen receptor-positive breast malignancy.
She was prescribed tamoxifen in a dose of 10mg per day to take for the next five years.
Since she completed her chemotherapy three years ago, she has no menstrual periods.
What is the most probable cause of her current bleeding?Your Answer: An endometrial cancer produced by the tamoxifen.
Correct Answer: Endometrial polyp formation due to the tamoxifen.
Explanation:The most likely cause of her bleeding is an endometrial polyp formation due to the tamoxifen.
Tamoxifen is often prescribed to decrease risk of breast cancer recurrence in premenopausal women with oestrogen receptor-positive cancers.
As with any medication, it has known side effects, which include endometrial polyp formation, subendometrial oedema and, rarely, endometrial carcinoma.
A polyp or carcinoma can cause uterine bleeding, but a polyp is more likely to occur.
Routine endometrial thickness screening is not recommended in all women taking tamoxifen. However, in cases of abnormal bleeding, ultrasound assessment of endometrial thickness, hysteroscopy and curettage are indicated to assess the endometrium in more detail.
Tamoxifen is not associated with endometrial atrophy.
Endometrial metastasis from a breast cancer is rare, and tamoxifen would not usually induce follicular development in a woman who has had chemotherapy and resultant amenorrhoea.
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This question is part of the following fields:
- Gynaecology
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Question 72
Correct
-
After six weeks of amenorrhoea, a 25-year-old woman appears with stomach discomfort and vaginal bleeding. If she has a tubal ectopic pregnancy, which of the following combinations of physical indications is most likely?
Your Answer: Little guarding but marked rebound tenderness in the suprapubic region.
Explanation:Blood in the peritoneal cavity rarely causes rigidity like that of a board (this is generally only found when chemical or purulent peritonitis is present).
When there is blood, there is usually a lot of rebound soreness and a lot of guarding.
A tubal ectopic pregnancy causes discomfort and tenderness in the lower abdomen, but it is not always localised to the side of the disease.
Shock is uncommon since the diagnosis is usually recognised before there is enough blood loss to elicit such signs.
Pelvic soreness is more prevalent than a pelvic mass that may be seen on a clinical exam.
Where a mass is visible, it could be an ectopic pregnancy, but it’s more likely to be a pregnancy surrounded by a blood clot caused by a leaking ectopic pregnancy. -
This question is part of the following fields:
- Gynaecology
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Question 73
Incorrect
-
A 16 year old girl has been referred as she has amenorrhoea. She reports never having periods. Her mother and 2 sisters menarche was at age 12. On examination you note the patient is 152cm tall and BMI 29.0 and secondary sexual characteristics are not developed. Her FSH is elevated. Prolactin is normal. What is the suspected diagnosis?
Your Answer: Anorexia Nervosa
Correct Answer: Turner Syndrome
Explanation:Turner syndrome is the most common chromosomal abnormality in females occurring in 1 in 2500 live births. It is characterised by short stature, webbed neck and wide carrying angle. It is also associated with renal, endocrine and CVS abnormalities. In this condition the ovaries do not completely develop and do not produce oestrogen or oocytes, thus no secondary sexual characteristic develop and neither does the girl starts menstruating.
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This question is part of the following fields:
- Clinical Management
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Question 74
Incorrect
-
A 48-year-old woman presented to you with a breast mass. On examination, it is hard, irregular and ill defined. The surface of the breast is slightly bruised however, there is no discharge. The most probable diagnosis is?
Your Answer: Duct ectasia
Correct Answer: Fat necrosis
Explanation:Fat necrosis is often a result of a trauma or surgery. In fat necrosis the enzyme lipase releases fatty acids from triglycerides. The fatty acids combine with calcium to form soaps. These soaps appear as white chalky deposits which are firm lumps with no associated discharge. The given case has a bruise which indicates prior trauma.
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This question is part of the following fields:
- Gynaecology
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Question 75
Incorrect
-
Which of the following muscles does NOT receive innervation from the pudendal nerve?
Your Answer: External anal sphincter
Correct Answer: Internal anal sphincter
Explanation:The internal anal sphincter is innervated by the splanchnic nerves. Sympathetic nerve supply from the inferior hypogastric plexus (for contraction) and parasympathetic supply from nervi erigentes (for relaxation).
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This question is part of the following fields:
- Anatomy
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Question 76
Incorrect
-
A women in her 21-weeks of pregnancy, complaints of palpitations, sweating of palms, and increased nervousness.
Along with TSH what other investigations should be done for this patient?Your Answer: Free T3
Correct Answer: Free T4
Explanation:Patient mentioned in the case has developed thyrotoxicosis during pregnancy. TSH level should be tested, and if the result shows any suppressed or elevated TSH level, then it is mandatory to check for free T4 level.
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This question is part of the following fields:
- Obstetrics
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Question 77
Incorrect
-
Regarding the Pituitary gland which of the following statements is true?
Your Answer: Is primarily an exocrine gland
Correct Answer: It is surrounded by the sella turcica
Explanation:The Sella turcica is composed of three parts:
1. The tuberculum sellae (horn of saddle): a variable slight to prominent median elevation forming the posterior
boundary of the prechiasmatic sulcus and the anterior boundary of the hypophysial fossa.
2. The hypophysial fossa (pituitary fossa): a median depression (seat of saddle) in the body of the sphenoid that accommodates the pituitary gland (L. hypophysis).
3. The dorsum sellae (back of saddle): a square plate of bone projecting superiorly from the body of the sphenoid.
It forms the posterior boundary of the Sella turcica, and its prominent superolateral angles make up the posterior clinoid processes. -
This question is part of the following fields:
- Anatomy
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Question 78
Incorrect
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A 35-year-old woman, gravida 2 para 1, at 14 weeks of gestation comes to the office for a routine prenatal visit. She is feeling well and has no concerns. The patient had daily episodes of nausea and vomiting for the first few weeks of her pregnancy and those symptoms resolved 2 weeks ago. She has had no pelvic pain or vaginal bleeding, and is yet to feel any fetal movements.
Her first pregnancy ended in a cesarean delivery at 30 weeks of gestation due to breech presentation, complicated with severe features of preeclampsia. Patient has no other significant chronic medical conditions and her only medication is a daily dose of prenatal vitamin and have not reported of any medication allergies. The patient does not use tobacco, alcohol or other illicit drugs.
On examination her blood pressure is 112/74 mm of Hg and BMI is 24 kg/m2. Fetal heart rate is found to be 155/min. The uterus is gravid and nontender and the remainder of the examination is unremarkable.
Which of the following is considered to be the next best step in management of this patient?Your Answer: Vaginal progesterone
Correct Answer: Low-dose aspirin
Explanation:Preeclampsia prevention
Preeclampsia is defined as a new-onset hypertension along with other features like proteinuria &/or end-organ damage at >20 weeks of gestation.
Patients with the following histories are at high risk for preeclampsia:
– Those with prior history of preeclampsia
– Those with chronic kidney disease
– Those with chronic hypertension
– Those with diabetes mellitus
– Multiple gestation
– Autoimmune disease
Patients belonging in the following criteria are at moderate risk for preeclampsia:
– Obesity
– Advanced maternal age
– NulliparityPreeclampsia is considered as the leading cause for maternal and fetal morbidity and mortality. This is due to its increased risk for complications such as stroke, placental abruption and disseminated intravascular coagulation. It is most likely caused due to abnormal vasoconstriction and increased platelet aggregation, which thereby results in placental infarction and ischemia. The condition can be effectively prevented by the administration of low-doses of aspirin at 12 weeks of gestation.
Patients with predisposing factors, such as chronic kidney disease, chronic hypertension and a history of preeclampsia, particularly with severe features or at <37 weeks gestation as in this patient, are at higher risk for developing preeclampsia.
In high risk patients, the only therapy proven to decrease the risk of preeclampsia is a daily administration of low-dose aspirin, as it inhibits platelet aggregation and helps in preventing placental ischemia. Treatment is initiated at 12 – 28 weeks of gestation, optimally before 16 weeks and is continued till delivery.Betamethasone is a drug used to accelerate fetal lung maturity in patients who are prone to imminent risk of preterm delivery before 37 weeks of gestation. In this case, if the patient develops pre-eclampsia requiring an urgent preterm delivery betamethasone will be indicated.
High-doses (4 mg) of folic acid is indicated in patients with high risk for a fetus with neural tube defects, as in those who have a history of any prior pregnancies affected or those patients who use any folate antagonist medications. In the given case patient is at average risk and requires only a regular dose of 0.4 mg which is found in most prenatal vitamins.
Intramuscular hydroxyprogesterone is indicated in pregnant patients with prior spontaneous preterm delivery due to preterm prelabor rupture of membranes, preterm labor, etc to decrease the possible risk for any recurrence. In patients who underwent preterm delivery due to other indications like preeclampsia with severe features, fetal growth restriction, etc it is not indicated.
Vaginal progesterone is administered to decrease the risk of preterm delivery in patients diagnosed with a shortened cervix, which is usually identified incidentally on anatomy ultrasound scan done between 16 and 24 weeks of gestation. This patient is currently at her 14 weeks, so this is not advisable.
Patients at high risk for pre-eclampsia, like those with preeclampsia in a prior pregnancy, are advised to start taking a daily low-dose aspirin as prophylaxis for prevention of pre-eclampsia during pregnancy.
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This question is part of the following fields:
- Obstetrics
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Question 79
Incorrect
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Uterine Cervix:
Your Answer: Can be dilated with dilators without the need of anaesthesia
Correct Answer: Is the portion of the uterus below the isthmus
Explanation:The uterus is divisible into two portions. The portion above the isthmus is termed the body, and that below, the cervix. The uterine cervix is the narrow inferior segment of the uterus, which projects into the vaginal cavity. It is a fibromuscular organ lined by a mucous membrane and measures approximately 3cm in length and 2.5cm in diameter. The cervix is continuous at its superior margins with the body of the uterus and at its inferior margins with the vagina.
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This question is part of the following fields:
- Anatomy
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Question 80
Correct
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A 29 year old patient who is 22 weeks pregnant seeks your advice as she was recently exposed to chickenpox. Regarding fetal varicella syndrome (FVS) which of the following statements is correct regarding maternal varicella infection?
Your Answer: FVS may result if there is maternal varicella infection within the 1st 20 weeks gestation
Explanation:(13-20 weeks). If a mother has chickenpox in late pregnancy (5 days prior to delivery) then there is risk of neonatal varicella infection which may be severe.
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This question is part of the following fields:
- Microbiology
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Question 81
Correct
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Regarding ectopic pregnancy, where is the most common site of implantation?
Your Answer: Ampullary tubal
Explanation:Ectopic pregnancies can quickly become a gynaecological emergency if left untreated. The majority of ectopic pregnancies (95-97%) are tubal occurring in the fallopian tube as opposed to the abdomen, ovary or cervix. In tubal ectopics, the most common site of occurrence is in the ampulla (70%), followed by the isthmus, fimbria, and the cornua.
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This question is part of the following fields:
- Epidemiology
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Question 82
Incorrect
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A 34 year old patient who has just undergone a C-section delivery has lost almost 1 litre of blood. You suspect uterine atony as the likely cause, and have bimanually compressed the uterus. Which of the following pharmacological interventions should follow?
Your Answer: Ergometrine 0.5mg by intramuscular injection
Correct Answer: Syntocin 5u by slow intravenous injection
Explanation:In the management of postpartum haemorrhage, it is essential that the bleeding is first mechanically prevented, followed by the administration of oxytocic drugs, which cause the uterine smooth muscle to contract and clamping off bleeding sites in the endometrium. The drug of choice in the treatment protocol of PPH is 5 units of syntocin, a synthetic oxytocin uterotonic, by slow intravenous infusion. This is particularly suitable in the case of uterine atony. Other uterotonics, misoprostol, carboprost, ergometrine, can be used, but are not as effective in an emergency setting.
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This question is part of the following fields:
- Clinical Management
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Question 83
Incorrect
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Lactogenesis at term is stimulated by which hormone?
Your Answer: Progesterone
Correct Answer: Prolactin
Explanation:Prolactin is the hormone that is responsible for the production of milk (Lactogenesis). Oxytocin is responsible for the let down reflex during suckling.
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This question is part of the following fields:
- Clinical Management
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Question 84
Incorrect
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Regarding the structure of the detrusor muscle. Which of the following is true?
Your Answer: The detrusor is divided into 2 layers consisting of an inner longitudinal smooth muscle layer and outer circular smooth muscle layer
Correct Answer: The detrusor is divided into 3 layers consisting of inner and outer layers of longitudinal smooth muscle with a middle circular smooth muscle layer
Explanation:The urinary bladder is composed of the transitional epithelium, followed by the lamina propria made up of the fibroelastic connective tissue. The muscularis layer covers the lamina propria which is made up of three poorly defined layers of smooth muscles; the inner longitudinal, middle circular and the outer longitudinal layer. The bladder is covered on the superior surface and the lateral surface by the peritoneum.
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This question is part of the following fields:
- Anatomy
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Question 85
Incorrect
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At what week in pregnancy is testing for gestational diabetes (GD) advised
Your Answer: At booking appointment regardless of past history
Correct Answer: As soon as possible after booking if past history of GD
Explanation:Testing for GD should use the 2 hour 75g oral glucose tolerance test (OGTT) to test for GD in women. Testing women who have had GD in a previous pregnancy: early self monitoring of blood glucose OR a 75 g 2 hour OGTT as soon as possible after booking (whether in the first or second trimester) and a further 75 g 2hour OGTT at 24-28 weeks if the results of the first OGTT are normal. Testing women with risk factors for GD: 75g 2 hour OGTT at 24-28 weeks
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This question is part of the following fields:
- Clinical Management
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Question 86
Incorrect
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The pelvis includes which of the following bones:
Your Answer: Trochanter, sacrum, coccyx, ilium & pubis
Correct Answer: Ilium, ischium, pubis, sacrum & coccyx
Explanation:The pelvic skeleton is formed posteriorly (in the area of the back), by the sacrum and the coccyx and laterally and anteriorly (forward and to the sides), by a pair of hip bones. Each hip bone consists of 3 sections, ilium, ischium, and pubis.
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This question is part of the following fields:
- Anatomy
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Question 87
Incorrect
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Which of the following is associated with use of a tocolytic drug?
Your Answer: Prolongation of pregnancy for up to 12 hours
Correct Answer: Prolongation of pregnancy for up to 7 days
Explanation:The WHO recommends that tocolytics can safely be used to prolong pregnancy for up to seven days. The tocolytic drugs are used to suppress contractions to allow for more favourable conditions in the case of preterm labour, such as transfer to a better-equipped health care facility with a neonatal intensive care unit, or for those who have not yet completed a full dose of corticosteroids. It is not however associated with better neonatal outcomes in the imminent delivery of preterms. Examples of tocolytics include calcium channel blockers, magnesium sulphate, and oxytocin antagonists.
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This question is part of the following fields:
- Clinical Management
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Question 88
Correct
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According to the NICE guidelines on intrapartum care a multiparous women with intact membranes should be offered amniotomy if there is inadequate progress of the active second stage of labour (in terms of rotation and/or descent of the presenting part) after how long?
Your Answer: 30 minutes
Explanation:Multiparous women active 2nd stage labour: Suspect delay if progress inadequate after 30 minutes Diagnose delay if progress inadequate after 1 hour If delay is suspected amniotomy should be offered if membranes are intact If delay diagnosed then preparations should be made for C-section Nulliparous women active 2nd stage labour: Suspect delay if progress inadequate after 1 hour Diagnose delay if progress inadequate after 2 hours If delay is suspected amniotomy should be offered if membranes are intact If delay diagnosed then preparations should be made for C-section
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This question is part of the following fields:
- Clinical Management
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Question 89
Incorrect
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What percentage of haemoglobin is HbF by 6 months of age?
Your Answer: 20-25%
Correct Answer:
Explanation:HB gower 1 is the predominant embryonic haemoglobin when the foetus is 6 week old and is replaced by adult haemoglobin by the age of 5 months post natally. Only 2% of the haemoglobin is HbF.
Embryonic Haemoglobin:
Haemoglobin Gower 1 (HbE Gower-1)
Haemoglobin Gower 2 (HbE Gower-2)
Haemoglobin Portland I (HbE Portland-1)
Haemoglobin Portland II (HbE Portland-2)Fetal Haemoglobin (haemoglobin F, HbF)
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This question is part of the following fields:
- Physiology
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Question 90
Incorrect
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With regard to the cell cycle. In what phase do chromatids get cleaved into chromosomes and pulled apart?
Your Answer: Interphase
Correct Answer: Anaphase
Explanation:G0 is a resting phase. Interphase (G1,S,G2) is where the cell grows and DNA replication occurs forming chromatids. Mitosis is where cell division occurs and this happens in a the following phases: Prophase Chromatin condenses to chromosomes (paired as chromatids). Mitotic spindle forms Metaphase Chromatids align at the equatorial plane AKA the metaphase plate Anaphase Chromatids pulled apart into 2 constituent daughter chromosomes Telophase New nuclear envelopes form around each daughter chromosome Cytokinesis Cells divide Diagram illustrating Mitosis Image sourced from Wikipedia
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This question is part of the following fields:
- Biochemistry
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Question 91
Correct
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A 33 year old pregnant lady was brought into the emergency department with per vaginal bleeding. She has been having labour pains for the last 2 hours. O/E: her cervix was 2cm dilated. Which stage of labour is she in now?
Your Answer: First stage
Explanation:There are 3 stages of labour. The 1st stage of labour starts from labour contractions till the time the cervix is fully dilated. Stage 2 is from complete cervical dilatation until the baby is born. The 3rd stage is from the birth of the baby, until the time the placenta is expelled.
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This question is part of the following fields:
- Gynaecology
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Question 92
Incorrect
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Bladder neck closure and relaxation of the bladder is mediated by?
Your Answer: Sympathetic Fibres S2,S3,S4
Correct Answer: Sympathetic Fibres L1,L2
Explanation:The neck of the bladder is surrounded by the internal sphincter. It is supplied by the sympathetic and parasympathetic nerves of the splanchnic nerve. Parasympathetic stimulation causes the detrusor muscle to contract and the internal urethral sphincter to relax. It Is predominantly by the parasympathetic nerves S2-S4. Relaxation of the bladder is caused by inhibiting the sacral parasympathetic preganglionic neurons and exciting the lumbar sympathetic preganglionic neurons. Remember SYMPATHETIC is for STORAGE and PARASYMPATHETIC is for PEEING.
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This question is part of the following fields:
- Anatomy
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Question 93
Incorrect
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A 50-year-old woman presents with moderately severe pain in her left groin and thigh. She had recently travelled by airplane from overseas and is at 18 weeks of gestation of her second pregnancy. The only incidence of trauma she can think of is when she hit her left knee on a table yesterday.
On physical examination, it is found that she has some swelling of her left ankle that is not present on the right side. Her first pregnancy was unremarkable except for development of some symptoms that were believed to be related to pelvic symphyseal separation around 28 weeks of gestation.
Which one of the following is the mostly cause for this patient's pain?Your Answer: A symphyseal separation
Correct Answer: deep venous Thrombosis (DVT) in her left leg
Explanation:For this pregnant patient who recently travelled overseas most likely has a deep venous thrombosis (DVT). It would also be expected that the patient would have oedema in the symptomatic leg and account for the swelling described.
Though they could cause unilateral leg pain, neither symphyseal separation nor sciatica due to a prolapsed intervertebral disc usually occur as early as 18 weeks of gestation. This patient’s symptoms also do not suggest either diagnosis.
Pain due to trauma would usually be maximal at the site where the trauma took place, which would be in the knee for this patient. Traumatic pain and house cleaning also would not cause the pain described or result in ankle swelling.
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This question is part of the following fields:
- Obstetrics
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Question 94
Incorrect
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A 24 year old who is 32 weeks pregnant presents with a rash to the abdomen. Looking at the picture below what is the diagnosis?
Your Answer: Striae Gravidarum
Correct Answer: Polymorphic Eruption of Pregnancy
Explanation:This is Polymorphic Eruption of Pregnancy (PEP) also known as Pruritic Urticarial Papules and Plaques of Pregnancy (PUPPP). Papules and plaques form on the abdomen (commonly within striae). It is most common in women during their first pregnancy and typically occurs in the 3rd trimester.
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This question is part of the following fields:
- Clinical Management
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Question 95
Incorrect
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At what gestational age does the luteo-placental shift occur?
Your Answer: 32-36 weeks
Correct Answer: 6-8 weeks
Explanation:Luteo-placental shifts occurs around 6-8 week when the placenta takes over from the corpus luteum as the main producer of oestrogen and progesterone.
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This question is part of the following fields:
- Clinical Management
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Question 96
Incorrect
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Hyperemesis gravidarum occurs in what percentage of pregnancies?
Your Answer: <0.5%
Correct Answer: 1.50%
Explanation:Hyperemesis Gravidarum effects around 0.3-2% of Pregnancies. It causes imbalances of fluid and electrolytes, disturbs nutritional intake and metabolism, causes physical and psychological debilitation and is associated with adverse pregnancy outcome, including an increased risk of preterm birth
and low birthweight babies. The aetiology is unknown however various potential mechanisms have been proposed including an association with high levels of serum human chorionic gonadotrophin (hCG), oestrogen and thyroxine. -
This question is part of the following fields:
- Clinical Management
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Question 97
Incorrect
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A 24 year old lady is rushed to the emergency department complaining of vaginal spotting and abdominal cramping. Her 6 week pregnancy was confirmed by ultrasound scan last week. On speculum examination, the cervical os is open with blood noted around it.
Which of the following is the most likely diagnosis?Your Answer: Missed Miscarriage
Correct Answer: Inevitable Miscarriage
Explanation:A miscarriage is defined as the spontaneous loss of a pregnancy before the age of viability at 24 weeks in the UK. An inevitable miscarriage occurs with the usual symptoms of a miscarriage such as menstrual-like cramping, vaginal bleeding and a dilated cervix. The gestational sac has ruptured but products of conception have not been passed. The products of conception will eventually pass.
A missed miscarriage is described as a loss of pregnancy without vaginal bleeding, loss of tissue, cervical changes or abdominal pain. During a scan, a fetal heartbeat is not observed, and the gestational sac may be small.
A threatened miscarriage is when the cervix dilates and uterine bleeding is seen; the pregnancy could still be viable.
A complete miscarriage occurs when all the products of conception are expelled from the uterus, bleeding has stopped, and the cervix has closed up after dilation. Recurrent miscarriages are described as spontaneous pregnancy loss of more than 2 to 3 consecutive times.
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This question is part of the following fields:
- Clinical Management
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Question 98
Incorrect
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The lower part of the rectum is supplied by the middle rectal artery. What is the middle rectal artery a branch of?
Your Answer: Superior mesenteric artery
Correct Answer: Internal iliac artery
Explanation:The middle rectal artery arises from the anterior division of the internal iliac artery.
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This question is part of the following fields:
- Anatomy
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Question 99
Incorrect
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A woman in early pregnancy is worried because of several small raised nodules on the areola of both breasts. There are no other findings. Your immediate management should be:
Your Answer: Surgical removal of the areola
Correct Answer: Reassurance after thorough examination
Explanation:The correct answer is reassurance after thorough examination. Most breast lesions diagnosed during pregnancy and lactation, even some specific ones such as lactation and adenoma galactocele, are benign. The diagnosis of breast cancer, which is difficult to elucidate and is less common among women who are pregnant or lactating than among those of the same age who are not, continues to be a challenge for clinicians.
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This question is part of the following fields:
- Obstetrics
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Question 100
Incorrect
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A baby with shoulder dystocia suffers a brachial plexus injury. You diagnose Erb-Duchenne palsy. Which nerve roots are typically affected?
Your Answer: C7 and T1
Correct Answer: C5 and C6
Explanation:Erb’s or Erb-Duchenne palsy is a type of brachial plexus injury. The brachial plexus comprises C5 to T1 nerve roots. In Erb’s palsy C5 and C6 are the roots primarily affected. Shoulder Dystocia is the most common cause of Erb’s palsy.
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This question is part of the following fields:
- Clinical Management
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Question 101
Incorrect
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A 30-year-old G2P1 woman presented to the maternity unit, in labour at 38 weeks gestation. During her previous pregnancy she delivered a healthy baby through caesarean section. The current pregnancy had been uneventful without any remarkable problems in antenatal visits except for the first trimester nausea and vomiting.
On arrival, she had a cervical dilation of 4 cm and the fetal head was at -1 station. After 5 hours, the cervical length and fetal head station are still the same despite regular uterine contractions. Suddenly, there is a sudden gush of blood, which is approximately 1000 ml and the fetal heart rate have dropped to 80 bpm on CTG.
Which of the following could be the most likely cause for this presentation?Your Answer: Lower genital tract lacerations
Correct Answer: Ruptured uterus
Explanation:Due to the previous history of caesarean section, uterine rupture would be the most likely cause of bleeding in this patient who is at a prolonged active phase of first stage of labour.
Maternal manifestations of uterine rupture are highly variable but some of its common features includes:
– Constant abdominal pain, where the pain may not be present in sufficient amount, character, or location suggestive of uterine rupture and may be masked partially or completely by use of regional analgesia.
– Signs of intra abdominal hemorrhage is a strong indication. Although hemorrhage is common feature, but signs and symptoms of intra-abdominal bleeding in cases of uterine rupture especially in those cases not associated with prior surgery may be subtle.
– Vaginal bleeding is not considered as a cardinal symptom as it may be modest, despite major intra-abdominal hemorrhage.
– Maternal tachycardia and hypotension
– Cessation of uterine contractions
– Loss of station of the fetal presenting part
– Uterine tenderness
As seen in this case, fetal bradycardia is the most common and characteristic clinical manifestation of uterine rupture, preceded by variable or late decelerations, but there is no other fetal heart rate pattern pathognomonic of rupture. Furthermore, fetal heart rate changes alone have a low sensitivity and specificity for diagnosing a case as uterine rupture.
Pain and persistent vaginal bleeding despite the use of uterotonic agents are characteristic for postpartum uterine rupture. If the rupture extends into the bladder hematuria may also occur.
A definite diagnosis of uterine rupture can be made only after laparotomy. Immediate cesarean section should be performed to save both the mother and the baby in cases where uterine rupture is suspected. -
This question is part of the following fields:
- Obstetrics
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Question 102
Incorrect
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You are asked to speak to a 27 year old patient who is pregnant for the first time. She is concerned as her friend recently gave birth and the baby was found to have profound hearing loss. Her friend was told this was due to an infection whilst she was pregnant. What is the most common infective cause of congenital hearing loss?
Your Answer: Zika
Correct Answer: Cytomegalovirus
Explanation:CMV is the most common congenital infection causing sensorineural deafness.
10-15% of infected infants will be symptomatic at birth. A further 10-15% who are asymptomatic at birth will develop symptoms later in life. Transmission can also be via breastmilk and the incubation period for CMV is 3-12 weeks. Diagnosis of fetal CMV infection is via amniocentesis however this should not be performed for at least 6 weeks after maternal infection and not until the 21st week of gestation -
This question is part of the following fields:
- Microbiology
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Question 103
Incorrect
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A 28 year old patient presents to clinic with a maculopapular rash to the hands and soles of the feet. Examination reveals wart like lesions on the vagina and a diagnosis of condyloma latum is made. What stage of syphilis infection is this?
Your Answer: Late Latent
Correct Answer: Secondary
Explanation:Condylomas are warty neoplasms of the vulvar area. The most common type are condyloma acuminatum which occur due to HPV 6 or 11. Condyloma latum are also known as secondary syphilis are less common. Both of these are sexually transmitted.
Stages of Syphilis:
– Primary 3-90 days
Chancre and lymphadenopathy
– Secondary 4-10 weeks
Widespread rash typically affecting hands and soles of feet.
Wart lesions (condyloma latum) of mucus membranes
– Latent Early <1 yr. after secondary stage
– Late >2 yr. after secondary stage
Asymptomatic
– Tertiary 3+ years after primary infection
Gummas or
Neurosyphilis or
Cardiovascular syphilis -
This question is part of the following fields:
- Clinical Management
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Question 104
Incorrect
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A patient undergoes oophorectomy and the ovarian veins are ligated. Which vein does the left ovary drain into?
Your Answer: Left uterine
Correct Answer: Left renal
Explanation:The right ovarian vein ascends and enters the inferior vena cava and the left ovarian vein drains into the longer left renal vein.
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This question is part of the following fields:
- Anatomy
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Question 105
Incorrect
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A 36-year-old woman presents to the gynaecology clinic with a complaint of headache, irritability, abdominal bloating, anxiety, and breast tenderness around 4 to 5 days before menstruation for the last 8 months. There's also a limitation on daily activities and she has to take a week off from work. The patient's symptoms are relieved completely with the onset of menstruation.
Which of the following suggests an appropriate diagnosis?Your Answer: Generalized anxiety disorder
Correct Answer: Premenstrual syndrome
Explanation:This patient meets the diagnostic criteria for premenstrual syndrome.
Affective and somatic symptoms over the five days before menses in each of the three previous menstrual cycles are diagnostic criteria for premenstrual syndrome.
Affective symptoms include:
– Depression.
– Anger outbursts.
– Irritability.
– Anxiety.
– Confusion.
– social withdrawal.
Somatic symptoms include:
– breast tenderness
– abdominal bloating
– headache and swelling of extremities.
Symptoms normally disappear within four days of menstruation and are present even when no medical therapy, drugs, or alcohol are used.Premenstrual dysphoric disorder is a severe form of premenstrual syndrome marked by intense melancholy, emotional lability with frequent crying, loss of interest in daily activities, reduced focus, exhaustion, sleeplessness, and a sense of being overwhelmed or out of control.
Symptoms must have been present for the majority of the previous 12 months, interfering with daily activities.The diagnoses of generalised anxiety disorder and depression alone are doubtful.
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This question is part of the following fields:
- Gynaecology
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Question 106
Incorrect
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Which of the following prolongs Prothrombin time?
Your Answer: Aspirin therapy
Correct Answer: Factor V deficiency
Explanation:Prothrombin time is increased in:
– Factor V deficiency
– Vitamin K deficiency (which affects factors 2,7 and 10)
– Warfarin therapy
– Severe liver failure
Protein C is an anticoagulant and deficiency results in a hyper-coagulable state with tendency towards thrombosis. -
This question is part of the following fields:
- Biochemistry
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Question 107
Correct
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Lidiya is a 30-year-old hospital nurse in her nine weeks of pregnancy. She has no history of chickenpox, but by regularly attending the facial sores of an elderly patient with herpes zoster ophthalmicus she has been significantly exposed to shingles.
What would you advise her as preventive management?Your Answer: If she had chicken pox immunization in the past, she needs to have her Varicella-Zoster IgG antibodies checked to assure immunity
Explanation:Patient in the given case is nine weeks pregnant, and she has been exposed to a herpes zoster rash because she is working as a hospital nurse and has no prior history of chickenpox.
The most appropriate next step in this case would be checking for Varicella-Zoster IgG antibodies which assures immunity to varicella infections. If VZV IgG is present no further action is needed, but if VZV IgG antibodies are absent, then she will need Varicella Zoster Immunoglobulins within ten days from the exposure to shingles. -
This question is part of the following fields:
- Obstetrics
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Question 108
Incorrect
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Regarding Human Papillomavirus, what percentage of women develop antibodies?
Your Answer: 75%
Correct Answer: 50%
Explanation:Human Papillomavirus has been is implicated in the development of genital warts as well as, head and neck, anogenital and cervical cancers, with the most important high-risk strains being 16 and 18. Over 50% of women worldwide are thought to possess antibodies against various strains of HPV after natural infection. Many infections are asymptomatic and are cleared within 2 years. Several vaccines have been formulated against HPV, one of which is Gardasil, a quadrivalent vaccine against HPV types 6,11, 16,18.
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This question is part of the following fields:
- Microbiology
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Question 109
Incorrect
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A 62-year-old woman complains of urinary incontinence for the past 12 months after having four pregnancies before the age of 30. She has to wear a 'pad' inside her pants all of the time because of this condition. She isn't on any hormone replacement therapy at the moment. Which of the following signs indicates that the incontinence is most likely true stress incontinence?
Your Answer: The incontinence often occurs at night when she is asleep.
Correct Answer: Only small quantities of urine ore lost each time she is incontinent.
Explanation:Only little volumes of urine are lost when her intra-abdominal pressure is elevated during coughing, laughing, jumping, and straining, which is the only symptom associated with real stress incontinence.
The other reactions are significantly more compatible with a detrusor instability diagnosis (also called urge incontinence).
If she had incontinence throughout pregnancy, it would have been stress in nature, which is what her current incontinence is. -
This question is part of the following fields:
- Gynaecology
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Question 110
Correct
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Consider you are looking after a male baby in neonatal unit. Case chart shows that his mother has been abusing intravenous drugs until late this pregnancy.
You will not discharge this baby home after delivery in all of the following conditions except?Your Answer: Weight loss greater than two percent of birth weight
Explanation:If a mother has been abusing drugs during antenatal period, there are some contraindications to discharge her baby home. These conditions includes:
– excessive weight loss, which is greater than ten percent of birth weigh
– suspected baby neglect or abuse
– suspected domestic violence
– a court order preventing baby from being discharged home or if there is requirement for further assessment of withdrawal symptoms.A 2-3 percentages weight loss during the early neonatal period is considered to be a normal finding and is therefore not considered as a contraindication to discharge the baby home.
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This question is part of the following fields:
- Obstetrics
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Question 111
Incorrect
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Which of the following is correct in the treatment of a case of threatened abortion:
Your Answer: Curettage
Correct Answer: Bed rest
Explanation:Patients with a threatened abortion should be managed expectantly until their symptoms resolve. Patients should be monitored for progression to an inevitable, incomplete, or complete abortion. Analgesia will help relieve pain from cramping. Bed rest has not been shown to improve outcomes but commonly is recommended. Physical activity precautions and abstinence from sexual intercourse are also commonly advised. Repeat pelvic ultrasound weekly until a viable pregnancy is confirmed or excluded. A miscarriage cannot be avoided or prevented, and the patients should be educated as such. Intercourse and tampons should be avoided to decrease the chance of infection. A warning should be given to the patient to return to the emergency department if there is heavy bleeding or if the patient is experiencing light-headedness or dizziness. Heavy bleeding is defined as more than one pad per hour for six hours. The patient should also be given instructions to return if they experience increased pain or fever. All patients with vaginal bleeding who are Rh-negative should be treated with Rhogam. Because the total fetal blood volume in less than 4.2 mL at 12 weeks, the likelihood of fetal blood mixture is small in the first trimester. A smaller RhoGAM dose can be considered in the first trimester. A dose of 50 micrograms to 150 micrograms has been recommended. A full dose can also be used. Rhogam should ideally be administered before discharge. However, it can also be administered by the patient’s obstetrician within 72 hours if the vaginal bleeding has been present for several days or weeks.
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This question is part of the following fields:
- Obstetrics
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Question 112
Incorrect
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A 33 year old lady in her first trimester of pregnancy presented with loss of weight, abdominal pain and frequent episodes of vomiting. Her vital signs are normal. She has been given a cyclizine injection but without any significant improvement. The next step would be?
Your Answer: Thiamine
Correct Answer: IV steroids
Explanation:In hyperemesis gravidarum, IV corticosteroids can be given to reduce vomiting, if the patient is not responding to standard anti emetics.
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This question is part of the following fields:
- Gynaecology
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Question 113
Incorrect
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The number of chromosomes in the human somatic cell is:
Your Answer: 44
Correct Answer: 46
Explanation:In eukaryotes, the genome comprises several double-stranded, linear DNA molecules bound with proteins to form complexes called chromosomes. Each species of eukaryote has a characteristic number of chromosomes in the nuclei of its cells. Human body cells (somatic cells) have 46 chromosomes.
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This question is part of the following fields:
- Cell Biology
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Question 114
Correct
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A 25-year-old female, expecting twins, complains of decreased fetal movements in her 40th week of gestation. An hour ago, she experienced constant abdominal pain for an hour and passed blood in her urine. What is the next best investigation in this case?
Your Answer: Cardiotocograph
Explanation:Cardiotocography (CTG) helps to record the heartbeat of the foetus in parallel to measuring the contractions of the mother’s uterus, this is the most appropriate tool to assess this patient’s condition.
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This question is part of the following fields:
- Gynaecology
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Question 115
Incorrect
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A 29 year old is diagnosed with stage 1A2 cervical cancer. Which of the following is the most appropriate treatment option?
Your Answer: Chemotherapy
Correct Answer: LLETZ
Explanation:The treatment of stage 1A cervical cancer is excision of the margins using the Loop electrical excision procedure (LLETZ). Hysterectomy is not necessary. This treatment enables fertility to be preserved.
2010 FIGO classification of cervical carcinoma
0 – Carcinoma in situ
1 – Confined to the cervix (diagnosed microscopy)
1A1 – Less than 3mm depth & 7mm lateral spread
1A2 – 3mm to 5mm depth & less than 7mm lateral spread
1B1 – Clinically visible lesion or greater than A2 & less than 4 cm in greatest dimension
1B2 – Clinically visible lesion, greater than 4 cm in greatest dimension
2 – Invades beyond uterus but not to pelvic wall or lower 1/3 vagina
2A1 – Involvement of the upper two-thirds of the vagina, without parametrical invasion & Less than 4cm
2A2 – Greater than 4 cm in greatest dimension
2B – Parametrial involvement
3 – Extends to Pelvic side wall or lower 1/3 vagina or hydronephrosis
3A – No pelvic side wall involvement
3B – Pelvic side wall involved or hydronephrosis
4 – Extends beyond true pelvis 4A Invades mucosa bladder and rectum
4B – Distant Metastasis -
This question is part of the following fields:
- Clinical Management
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Question 116
Correct
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Which of the following tests for the detection of chlamydia is considered the gold standard?
Your Answer: Nucleic Acid Amplification Test
Explanation:Chlamydia is one of the most prevalent STIs in the UK. Many infected individuals can be asymptomatic making it difficult to detect. The gold standard in the diagnosis of Chlamydia is the nucleic acid amplification test (NAAT). A sample is taken from a vulvovaginal self swab, or a cervical swab on speculum examination in women.
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This question is part of the following fields:
- Clinical Management
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Question 117
Incorrect
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You are asked to review a patient. They have attended for a scan at 13 weeks following a positive pregnancy test. The patient has had 2 previous pregnancies for which she opted for termination on both occasions. The scan shows a large irregular haemorrhagic mass that appears to be invading into the myometrium. What is the likely diagnosis?
Your Answer: Placenta Accreta
Correct Answer: Choriocarcinoma
Explanation:Choriocarcinoma may arise as a complication of gestation or as spontaneous germ cell tumours. As this scenario depicts that the women has previous abortion points to the fact that these may have been molar pregnancies. As choriocarcinoma can arise from a molar pregnancy it can be differentiated from it by the presence of invasion into the uterus and metastasis to the lungs primarily.
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This question is part of the following fields:
- Clinical Management
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Question 118
Incorrect
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Which statement given below is correct regarding the management of deep venous thrombosis during pregnancy?
Your Answer: Warfarin therapy is contraindicated only in the first trimester of pregnancy
Correct Answer: Warfarin therapy is contraindicated throughout pregnancy but safe during breast feeding
Explanation:Pregnancy is considered as a hypercoagulable state with an increased risk for the development of conditions like deep venous thrombosis (DVT) and pulmonary embolism (PE). Among these two PE is the considered the most significant cause for maternal death in Australia.
A pregnant women with venous thromboembolism should be treated with heparin as warfarin is contraindicated. Warfarin should be avoided throughout pregnancy and especially during the first and third trimesters of pregnancy as it crosses the placenta. Intake of warfarin at 6-12 weeks of pregnancy can results in fetal warfarin syndrome which is characterised by:
– A characteristic nasal hypoplasia
– Short fingers with hypoplastic nails
– Calcified epiphyses, namely chondrodysplasia punctuta which is evident by stippling of epiphyses on X-ray.
– Intellectual disability
– Low birth weight
Recent studies show that the risk of fetal warfarin syndrome is around 5 % more in babies of women who require warfarin throughout pregnancy and the risk is always dose dependent.
Later exposure to warfarin, as in after 12 weeks, is mostly associated with central nervous system anomalies like microcephaly, hydrocephalus, agenesis of corpus callosum, Dandy-Walker malformation which is characterised by complete absence of cerebellar vermis along with enlarged fourth ventricle and mental retardation. Eye anomalies such as optic atrophy, microphthalmia, and Peter anomaly which is the dysgenesis of the anterior segment are also found in association. Newborns exposed to warfarin in all three trimesters are prone to present with blindness. Other complications found in neonates exposed to warfarin are perinatal intracranial hemorrhage and other major bleeding episodes.Warfarin is not secreted into the breast milk and is so safe to use during the postpartum period.
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This question is part of the following fields:
- Obstetrics
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Question 119
Incorrect
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What is the typical volume increase of a non-pregnant uterus to term uterus?
Your Answer: 10ml to 1000ml
Correct Answer: 10ml to 5000ml
Explanation:Uterine blood flow increases 40-fold to approximately 700 mL/min at term. The uterus is 50–60 g with a volume of approximately 10ml prior to pregnancy and 1000 – 1200 g with a volume of 5000ml by term.
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This question is part of the following fields:
- Physiology
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Question 120
Incorrect
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A chronic alcoholic lady presented to the medical clinic with complaints of an increase in abdominal size. Ultrasound was performed and revealed a foetus in which parameters correspond to 32 weeks of gestation. Upon history taking, it was noted that she works in a pub and occasionally takes marijuana, cocaine, amphetamine and opioid.
Which of the following is considered to have the most teratogenic effect to the foetus?Your Answer: Amphetamine
Correct Answer: Alcohol
Explanation:All of the conditions that comprise fetal alcohol spectrum disorders stem from one common cause, which is prenatal exposure to alcohol. Alcohol is extremely teratogenic to a foetus. Its effects are wide-ranging and irreversible. Although higher amounts of prenatal alcohol exposure have been linked to increased incidence and severity of fetal alcohol spectrum disorders, there are no studies that demonstrate a safe amount of alcohol that can be consumed during pregnancy. There is also no safe time during pregnancy in which alcohol can be consumed without risk to the foetus. Alcohol is teratogenic during all three trimesters. In summary, any amount of alcohol consumed at any point during pregnancy has the potential cause of irreversible damage that can lead to a fetal alcohol spectrum disorder.
In general, diagnoses within fetal alcohol spectrum disorders have one or more of the following features: abnormal facies, central nervous system abnormalities, and growth retardation.
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This question is part of the following fields:
- Obstetrics
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Question 121
Incorrect
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A 40-year-old woman who is at 34 weeks of pregnancy presented to the medical clinic for advice since her other two children were diagnosed with whooping cough just 8 weeks ago, she is worried for her newborn about the risk of developing whooping cough.
Which of the following is considered the most appropriate advice to give to the patient?Your Answer: Give Pertussis vaccine booster DPTa after delivery
Correct Answer: Give Pertussis vaccine booster DPTa now
Explanation:To help protect babies during this time when they are most vulnerable, women should get the tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Tdap) during each pregnancy.
Pregnant women should receive Tdap anytime during pregnancy if it is indicated for wound care or during a community pertussis outbreak.
If Tdap is administered earlier in pregnancy, it should not be repeated between 27 and 36 weeks gestation; only one dose is recommended during each pregnancy.Optimal timing is between 27 and 36 weeks gestation (preferably during the earlier part of this period) to maximize the maternal antibody response and passive antibody transfer to the infant.
Fewer babies will be hospitalized for and die from pertussis when Tdap is given during pregnancy rather than during the postpartum period. -
This question is part of the following fields:
- Obstetrics
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Question 122
Incorrect
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Which of the following hormones is produced by the hypothalamus in response to breastfeeding?
Your Answer: PGE2
Correct Answer: Oxytocin
Explanation:Nipple stimulation during breastfeeding triggers the production of oxytocin from the hypothalamus and its subsequent release from the posterior pituitary gland. The hormone causes the myoepithelial cells of the breast to contract causing milk to flow through the ducts.
Ergometrine and Prostaglandin E2 are used during labour to control uterine bleeding after delivery, or ripen the cervix, while Atosiban is an oxytocin antagonist.
Antidiuretic hormone is also released from the posterior pituitary, and acts on the kidneys to decrease fluid excretion.
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This question is part of the following fields:
- Clinical Management
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Question 123
Correct
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In which part of the body does clomiphene trigger ovulation by antagonising oestrogen receptors?
Your Answer: Hypothalamus
Explanation:Clomiphene citrate is widely used in the induction of ovulation, especially in the treatment of anovulatory infertility and in conditions such as PCOS. The drug functions as a selective oestrogen receptor modulator, which acts in the hypothalamus to indicate low serum oestrogen levels. Reduced levels of negative feedback stimulate the secretion of GnRH from the hypothalamus, which in turn stimulate the production of gonadotropins (FSH and LH) from the anterior pituitary. These work to increase ovarian follicular activity.
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This question is part of the following fields:
- Pharmacology
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Question 124
Incorrect
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Which of the following will require Anti-D administration post partum?
Your Answer: Rhesus positive mother, fetal cord blood Rhesus positive
Correct Answer: Rhesus negative mother, non-sensitised, fetal cord blood Rh positive
Explanation:Rhesus positive mothers should not get anti-D. They have Rhesus antigens and the anti-D would result in maternal blood being bound and removed from her circulation. The danger is to children born to mothers who are rhesus negative. As the mother may develop antibodies against Rhesus positive fetal blood. Therefore if the baby is Rhesus negative then there is no risk of alloimmunisation (sensitisation)
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This question is part of the following fields:
- Immunology
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Question 125
Incorrect
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You are called to see a patient in A&E who attended due to finger splinter that has been removed. The HCA took some routine obs that show her blood pressure to be 162/110. She is 32 weeks pregnant. According to the NICE guidelines which of the following is appropriate?
Your Answer: Prescribe oral labetalol and review in outpatients in 1 weeks time
Correct Answer: Admit and start oral labetalol
Explanation:BP over 159/109 is classed as Severe. NICE guidance advises admission and treatment with oral Labetalol as 1st Line. Patient should have BP checked QDS and shouldn’t be discharged until BP is below 159/109
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This question is part of the following fields:
- Clinical Management
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Question 126
Incorrect
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Hirsutism can be found in all of the following conditions, EXCEPT:
Your Answer: Patient on danazol therapy
Correct Answer: Patient on oral contraceptive pills
Explanation:Classically, hirsutism has been considered a marker of increased androgen levels in females from increased production of androgens (i.e. testosterone) either by the adrenals or due to an ovarian disease. The ovarian causes for hyperandrogenism are polycystic ovarian syndrome (PCOS) and ovarian tumours. Adrenal causes include Cushing’s syndrome, androgen-producing tumours, and congenital adrenal hyperplasia (CAH), most commonly due to 21-hydroxylase deficiency. Less common causes include the hyperandrogenic-insulin resistant-acanthosis nigricans syndrome (HAIRAN). Hyperprolactinemia by increasing adrenal dehydroepiandrosterone sulphate (DHEA-S) production may cause hirsutism. Androgenic drugs are also an important cause of hirsutism. About 20% of the patients may present with idiopathic hirsutism (IH) with normal androgen levels and ovarian function. The cause of increased hair in these women is thought to be related to disorders in peripheral androgen activity. Onset of IH occurs shortly after puberty with slow progression. PCOS and IH account for 90% of the hirsutism in women. Hirsutism can also occur in some premenopausal women and continue for a few years after menopause. This is due to decrease in ovarian oestrogen secretion with continuous androgen production.
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This question is part of the following fields:
- Endocrinology
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Question 127
Incorrect
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All of the following are characteristic features of normal labour, except:
Your Answer: Increasing intensity of contractions
Correct Answer: Moderate bleeding
Explanation:Normal labour is characterized by spontaneous onset, rhythmical uterine contractions along with vertex presentation. Cervical dilatation starts from the 1st stage of labour and intensity of the uterine contractions increases with passing time. Bleeding occurs after the child is expelled and the average loss is about 250-500 ml in a normal vaginal delivery.
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This question is part of the following fields:
- Obstetrics
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Question 128
Incorrect
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A 28-year-old female presented with acute migraine accompanied with headache and vomiting. She was noted to be at 33 weeks of gestation.
Which of the following is considered the safest treatment for the patient?Your Answer: Regular mefenamic acid until delivery
Correct Answer: Paracetamol and metoclopramide
Explanation:The occurrence of migraine in women is influenced by hormonal changes throughout the lifecycle. A beneficial effect of pregnancy on migraine, mainly during the last 2 trimesters, has been observed in 55 to 90% of women who are pregnant, irrespective of the type of migraine.
For treatment of acute migraine attacks, 1000 mg of paracetamol (acetaminophen) preferably as a suppository is considered the first choice drug treatment. The risks associated with use of aspirin (acetylsalicylic acid) and ibuprofen are considered to be small when the agents are taken episodically and if they are avoided during the last trimester of pregnancy.
Paracetamol 500 mg alone or in combination with metoclopramide 10 mg are recommended as first choice symptomatic treatment of a moderate-to-severe primary headache during pregnancy.
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This question is part of the following fields:
- Obstetrics
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Question 129
Incorrect
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The β-hCG curve in maternal serum in a normal pregnancy peaks at:
Your Answer: 18 weeks of pregnancy
Correct Answer: 10 weeks of pregnancy
Explanation:During the first 8 weeks of pregnancy, concentrations of hCG in the blood and urine usually double every 24 hours. Levels of the hormone typically peak at around 10 weeks, decline until 16 weeks, then remain constant.
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This question is part of the following fields:
- Physiology
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Question 130
Correct
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The followings are considered normal symptoms of pregnancy, EXCEPT:
Your Answer: Visual disturbance
Explanation:Visual disturbances although very common during pregnancy are not a normal sign. Physicians should have a firm understanding of the various ocular conditions that might appear pregnancy or get modified by pregnancy. In addition, it is very important to be vigilant about the rare and serious conditions that may occur in pregnant women with visual complaints. Prompt evaluation may be required and the immediate transfer of care of the patient may help saving the lives of both the mother and the baby.
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This question is part of the following fields:
- Obstetrics
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Question 131
Incorrect
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What percentage of infants will have permanent neurological dysfunction as a result of brachial plexus injury secondary to shoulder dystocia?
Your Answer: 15%
Correct Answer:
Explanation:Shoulder dystocia occurs when the anterior or posterior fetal shoulder impacts on the maternal symphysis or sacrum and may require additional manevours to release the shoulders after gentle downward traction has failed. The most common injury that can occur, is to the brachial plexus due to lateral flexion of the head during traction. This may cause a neurological disability, Erb’s Palsy ( injury to C5 and C6 of the brachial plexus) in which there is a less than 10% chance that this injury would be permanent.
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This question is part of the following fields:
- Clinical Management
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Question 132
Incorrect
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Regarding Venous Thromboembolism (VTE) in pregnancy which of the following statements is TRUE?
Your Answer: Absolute risk of VTE in pregnancy and puerperium is 4-5/1000
Correct Answer: Relative risk of VTE in pregnancy is 4 to 6 fold
Explanation:Venous thromboembolic disease (VTE) is the most common cause of direct maternal death in the UK. In the most recent triennium, there were 41 fatalities, giving a maternal mortality rate of 1.94 per 100 000 – more than twice that of the next most common cause, pre-eclampsia. As pregnancy is a hyper coagulable state. There are alterations in the fibrinolytics and thrombotic pathways. There is also an increased production of clotting factors during pregnancy.
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This question is part of the following fields:
- Clinical Management
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Question 133
Incorrect
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Question 134
Incorrect
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A couple comes to your clinic because they haven't been able to conceive despite having had frequent sexual activity in the previous 12 months. The female partner is 35 years old and has regular menstrual cycles. The male partner is 38 years old and otherwise normal.
Which of the following studies would you do next to forecast ovulation?Your Answer: Semen analysis
Correct Answer: Serum progesterone
Explanation:This patient has a regular and long menstrual period. The most crucial thing in this case is to rule out anovulation.
Serum progesterone concentration is the best test for detecting ovulation.
Ovulation has occurred if the level is greater than 20nmol/L.
This test should be performed 3 to 10 days prior to the start of the next anticipated period. -
This question is part of the following fields:
- Gynaecology
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Question 135
Incorrect
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A 50-year-old female presents with a complaint of bloating and abdominal distension. History reveals she underwent hysterectomy 3 months ago. Which investigation should be carried out in this case?
Your Answer: CT scan
Correct Answer: Plain X-ray abdomen
Explanation:A complication of bilateral salpingo-oophorectomy and hysterectomy is the formation of adhesions in the GIT that can cause intestinal obstruction. Abdominal X-ray is sufficient to visualize any obstruction in the GIT.
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This question is part of the following fields:
- Gynaecology
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Question 136
Incorrect
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A 34 year old female presents to the ob-gyn for a regular antenatal visit. Her previous pregnancy was complicated by pre-eclampsia and later eclampsia. What are the chances of her pre-eclampsia recurring in a later pregnancy?
Your Answer: The risk is 1 in 4 (25%)
Correct Answer:
Explanation:Research suggests the risk of having preeclampsia again is approximately 20%, however experts cite a range from 5% to 80% depending on when you had it in a prior pregnancy, how severe it was, and additional risk factors you may have. If you had preeclampsia during your first pregnancy, you may get it again. HELLP is related to preeclampsia and about 4 to 12 percent of women diagnosed with preeclampsia develop HELLP. HELLP syndrome can also cause complications in pregnancy, and if you had HELLP in a previous pregnancy, regardless of the time of onset, you have a greater risk for developing it in future pregnancies.
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This question is part of the following fields:
- Obstetrics
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Question 137
Incorrect
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What percentage of pregnant women have asymptomatic vaginal colonisation with candida?
Your Answer: 5%
Correct Answer: 40%
Explanation:Vulvovaginal candidiasis is the most common genital infections and it is caused by candida albicans in 80-92% of the cases. It colonise the vaginal flora in 20% of non pregnant and 40% pregnant women.
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This question is part of the following fields:
- Clinical Management
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Question 138
Correct
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What is the contraception of choice for epileptics on enzyme inducing antiepileptic drugs?
Your Answer: Levonorgestrel-releasing intrauterine contraceptive device.
Explanation:Clinical decision making which contraceptive regimen is optimal for an individual woman with epilepsy is one of the most challenging tasks when taking care of women with epilepsy. The bidirectional interactive potential of antiepileptic drugs (AEDs) and hormonal contraceptives needs to be taken into account. Enzyme inducing (EI)-AEDs may reduce the contraceptive efficacy of hormonal contraceptives.
If combined oral contraceptives (COCs) are used in combination with EI-AEDs, it is recommended to choose a COC containing a high progestin dose, well above the dose needed to inhibit ovulation, and to take the COC pill continuously (“long cycle therapy”). But even with the continuous intake of a COC containing a higher progestin dose contraceptive safety cannot be guaranteed, thus additional contraceptive protection may be recommended.
Progestin-only pills (POPs) are likely to be ineffective, if used in combination with EI-AEDs.
Subdermal progestogen implants are not recommended in patients on EI-AEDs, because of published high failure rates.
Depot medroxyprogesterone-acetate (MPA) injections appear to be effective, however they may not be first choice due to serious side effects (delayed return to fertility, impaired bone health).
The use of intrauterine devices is an alternative method of contraception in the majority of women, with the advantage of no relevant drug–drug interactions. The levonorgestrel intrauterine system (IUS) appears to be effective, even in women taking EI-AEDs. Likelihood of serious side effects is low in the IUS users.
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This question is part of the following fields:
- Gynaecology
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Question 139
Incorrect
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Turner's syndrome is characterised by :
Your Answer: Secondary amenorrhea is usual
Correct Answer: Streak ovaries
Explanation:Turner syndrome, a condition that affects only females, results when one of the X chromosomes (sex chromosomes) is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop and heart defects. Streak ovaries are a form of ovarian dysgenesis and are associated with Turner syndrome. Occasionally they may be functional and secondary sexual characteristics may develop.
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This question is part of the following fields:
- Embryology
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Question 140
Incorrect
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After a vaginal delivery, a patient suffers a perineal tear. On examination the laceration involves the external anal sphincter and has partially torn the internal anal sphincter. Which of the following classifies this tear?
Your Answer: 3b
Correct Answer: 3c
Explanation:During childbearing the vagina and perineum are prone to lacerations that may involve the skin or can extend into the anal sphincter complex. It is important to be able to identify obstetric and anal sphincter injuries to provide adequate care and prevent complications. In the classification of obstetric tears according to RCOG guidelines:
First degree tear: injury to the perineal skin and/or the vaginal mucosa
Second degree tears: Injury to perineum involving perineal muscles but not the anal sphincter.
Third-degree tear: Injury to perineum involving the anal sphincter complex:
Grade 3a tear: Less than 50% of external anal sphincter (EAS) thickness torn.
Grade 3b tear: More than 50% of EAS thickness torn.
Grade 3c tear: Both EAS and internal anal sphincter (IAS) torn.
Fourth-degree tear: Injury to perineum involving the anal sphincter complex (EAS and IAS)
and anorectal mucosa. -
This question is part of the following fields:
- Anatomy
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Question 141
Correct
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Regarding gestational diabetes which of the following is NOT a recognised risk factor
Your Answer: High polyunsaturated fat intake
Explanation:Gestational diabetes (GDM) occurs in 2–9 per cent of all pregnancies. Screening for diabetes in pregnancy can be justify ed to diagnose previously unrecognized cases of pre-existing diabetes and to identify a group of women who are at risk of developing NIDDM later in life. No single screening test has been shown to be perfect in terms of high sensitivity and specific city for gestational diabetes. Urinary glucose is unreliable, and most screening tests now rely on blood glucose estimation, with an oral glucose tolerance test commonly used. The aim of glucose control is to keep fasting levels between 3.5 and 5.5 mmol/L and postprandial levels 7.1 mmol/L, with insulin treatment usually indicated outside these ranges. There are various risk factors for gestational diabetes including increasing age, ethnicity, previous still births etc.
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This question is part of the following fields:
- Clinical Management
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Question 142
Correct
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A foetus is noted to be small for gestational age (SGA) on the 20 week scan. One of the mothers medications is stopped at this time. Follow up scans reveal renal dysgenesis. Which of the below medications was stopped?
Your Answer: Ramipril
Explanation:Use of angiotensin II receptors blocks and ACE inhibitors are known to result in renal dysgenesis. Due to renal dysgenesis oligohydramnios occurs that leads to IUGR.
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This question is part of the following fields:
- Pharmacology
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Question 143
Incorrect
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A 27-year-old woman presents to the clinic.
She explains she has had 2 episodes of postcoital bleeding.
Her previous medical history reveals she is currently taking the oral contraceptive pill (OCP) and has never had an abnormal pap smear, including one that was performed a year ago.
What is the most probable cause of her postcoital bleeding?Your Answer: Chlamydia cervicitis
Correct Answer: A cervical ectropion
Explanation:The most likely cause of her postcoital bleeding is cervical ectropion as suggested by her postcoital bleeding, normal pap smears and use of oral contraceptive pills.
Cervical ectropion is a benign condition that occurs as a result of overexposure to oestrogen. Here, glandular cells (the columnar epithelium) lining the endocervix, begin to grow on the ectocervix, leading to exposure of the columnar cells to the vaginal environment.
These columnar cells are prone to trauma and bleeding during coitus.
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This question is part of the following fields:
- Gynaecology
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Question 144
Incorrect
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During the inflammatory phase of wound healing what is the predominant cell type found in the wound during days 3-4?
Your Answer: Monocytes
Correct Answer: Macrophages
Explanation:PMNs phagocytise debris and kill bacteria via free radicals (AKA respiratory burst). They also break down damaged tissue. PMNs typically undergo apoptosis after 48 hours. They are then engulfed and degraded by macrophages. Macrophages therefore become the predominant cell type in the wound on days 3-4.
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This question is part of the following fields:
- Physiology
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Question 145
Incorrect
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If the presenting part of the foetus is the large fontanel, this presentation is known as?
Your Answer: Face
Correct Answer: Sinciput
Explanation:Sinciput means the head is neither flexed nor extended. It is the area between forehead and crown and in this case the anterior fontanel is the presenting part.
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This question is part of the following fields:
- Anatomy
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Question 146
Correct
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A 27-year-old pregnant elementary school teacher presented to the medical clinic because she found out that one of her students has been recently diagnosed with rubella, but the diagnosis was not confirmed by serologic tests. Upon interview, it was noted that her last rubella vaccination was when she was 12 years old.
Which of the following is considered the best management as the next step to perform?Your Answer: Check rubella serology
Explanation:Rubella infection during pregnancy may lead to miscarriage, intrauterine fetal demise, premature labour, intrauterine growth retardation, and congenital rubella syndrome. The risk of developing complications is highest if the infection is contracted within the first 12 weeks of gestation.
In those cases in which a pregnant woman has been exposed to a suspected rubella case, a specimen of blood should be tested as soon as possible for the measurement of rubella-specific IgG antibodies. If it is positive, then the woman was likely to be immune and could be reassured. If it is negative, a determination rubella-specific IgG and rubella-specific IgM antibodies should be obtained in 3 weeks to exclude an asymptomatic primary rubella infection.
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This question is part of the following fields:
- Obstetrics
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Question 147
Correct
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A 40-year-old woman presents to your clinic with symptoms suggestive of urge incontinence. She is otherwise healthy and there is a history of a large amount of fluid intake daily as she believes it lowers her risk of genitourinary infections.
Urinalysis and urine culture are performed which come back negative. The diagnosis of urge incontinence was suggested by physical examination and confirmed by cystometry.
What should be the appropriate next step of management for such a patient?Your Answer: Instruct her to eliminate excess water and caffeine from her daily fluid intake.
Explanation:Urge incontinence is involuntary pee loss accompanied by a strong desire to urinate. The most common cause of urge incontinence is detrusor or bladder dyssynergia, which is characterized by an involuntary contraction of the bladder during urine distension.
Bladder training, eliminating excess coffee and fluid intake, biofeedback, and pharmacological therapy are all options for treating urge incontinence. Treatment with anticholinergic medicines (oxybutynin chloride), -sympathomimetic agonists (metaproterenol sulphate), Valium, antidepressants (imipramine hydrochloride), and dopamine agonists (Parlodel) has proven successful if conservative approaches fail.
The detrusor muscle will be relaxed by these pharmacologic drugs. Oestrogen therapy may improve urine control in postmenopausal women who are not on oestrogen replacement therapy. Kegel exercises can help women with stress urinary incontinence strengthen their pelvic musculature and improve bladder control.
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This question is part of the following fields:
- Gynaecology
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Question 148
Correct
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Regarding fertilization & implantation:
Your Answer: The sperm head penetrates through the corona radiata & zona pellucida while the tail remains outside
Explanation:During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg cell to fertilize it. Fusing to the egg cell usually causes little problem, whereas penetrating through the egg’s hard shell or extracellular matrix can be more difficult. Therefore, sperm cells go through a process known as the acrosome reaction, which is the reaction that occurs in the acrosome of the sperm as it approaches the egg. The acrosome is a cap-like structure over the anterior half of the sperm’s head. Upon penetration, if all is normally occurring, the process of egg-activation occurs, and the oocyte is said to have become activated. This is thought to be induced by a specific protein phospholipase c zeta. It undergoes its secondary meiotic division, and the two haploid nuclei (paternal and maternal) fuse to form a zygote. To prevent polyspermy and minimize the possibility of producing a triploid zygote, several changes to the egg’s cell membranes render them impenetrable shortly after the first sperm enters the egg.
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This question is part of the following fields:
- Embryology
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Question 149
Incorrect
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At what angle is the plane of the pelvic inlet to the anatomical horizontal plane?
Your Answer:
Correct Answer: 60
Explanation:The female pelvic inlet tilts at an inclination that is about 60 degrees from the anatomical horizontal plane. This tilt is maintained by muscles and fascia. The pelvic outlet slopes at an angle of 15 degrees.
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This question is part of the following fields:
- Anatomy
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Question 150
Incorrect
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What is the anatomical landmark used for gauging the station of the fetal head during labour?
Your Answer:
Correct Answer: Ischial Spine
Explanation:The ischial spine is the anatomical landmark for assessing the station of the fetal head and also placing pudendal nerve blocks. (the pudendal nerve runs posterior to the ischial spine). The ischial spine can be palpated approximately 8cm into the vagina, at 4 and 8 o’clock.
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This question is part of the following fields:
- Anatomy
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