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Question 1
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A 25 year old prim gravida carrying a twin male pregnancy presents at 31 weeks gestation. She is lethargic, clinically jaundiced and complains of abdominal pain with frequent vomiting. You suspect acute fatty liver of pregnancy (AFLP). What is the maternal mortality rate with AFLP?
Your Answer: 20%
Explanation:Acute fatty liver of pregnancy occurs in 1-10000 pregnancies and presents as jaundice with abdominal pain. The maternal mortality is around 20%
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This question is part of the following fields:
- Clinical Management
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Question 2
Incorrect
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At ovulation the surge in LH causes rupture of the mature oocyte via action on what?
Your Answer: Granulosa externa
Correct Answer: Theca externa
Explanation:The luteinizing hormone (LH) surge during ovulation causes: Increases cAMP resulting in increased progesterone and PGF2 production PGF2 causes contraction of theca externa smooth muscle cells resulting in rupture of the mature oocyte
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This question is part of the following fields:
- Endocrinology
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Question 3
Correct
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Human papilloma virus (HPV) infection is associated with which of the following onco-proteins?
Your Answer: E6 and E7
Explanation:There are over 100 genotypes of HPV including several other high risk HPV types. HPV 16 and 18 are responsible for 70% of cases of HPV related cancers. HPV is thought to induce cancer via onco-proteins. The primary onco-proteins are E6 and E7 which inactivate two tumour suppressor proteins, p53 (inactivated by E6) and pRb (inactivated by E7)
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This question is part of the following fields:
- Microbiology
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Question 4
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A 28-year-old G1P0 patient at 24 weeks of gestation visits your office complaining of some shortness of breath that is more intense with exertion and denies any chest pain. She is concerned as she has always been very athletic and is unable to maintain the same degree of exercise she was accustomed prior to becoming pregnant. Patient also informed she has no significant past medical history and is not on any medication.
On physical examination, her pulse is 72 beats per minute, with a blood pressure of 100/70 mm Hg. Cardiac examination is normal and her lungs are clear to auscultation and percussion.
Which among the following is considered the most appropriate next step to pursue in the workup of this patient?Your Answer: Reassure the patient
Explanation:Patient’s presentation and physical examination findings are most consistent with physiologic dyspnea, which is common during pregnancy. This breathing difficulty which is due to an increase in the tidal volume of lung will present itself as an increased awareness of breathing and can occur as early as the end of first trimester. Any minute increase in the ventilation occurs during pregnancy can make patients feel as if they are hyperventilating and contribute to the feeling of dyspnea.
Patient should be reassured and educated regarding these normal changes of pregnancy, also should be counselled to modify her exercise regimen accordingly to her changed tolerance.
Systolic ejection murmurs are due to increased blood flow across the aortic and pulmonic valves which is a normal finding in a pregnancy. So there is no need for this patient to be referred to a cardiologist or to order an ECG.
About 1 in 6400 pregnancies present with pulmonary embolism and there will be clinical evidence of DVT in many of these cases. Dyspnea, chest pain, apprehension, cough, hemoptysis, and tachycardia are the most common symptoms of PE and physical examination shows accentuated pulmonic closure sound, rales, or a friction rub. If there is a strong suspicion for PE, the patient should be followed up with a ventilation-perfusion scan, which will confirm PE if presented with large perfusion defects and ventilation mismatches. -
This question is part of the following fields:
- Obstetrics
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Question 5
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 6
Incorrect
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A 46 year old lady presents to the gynaecology clinic with a one month history of vulval soreness and lumps. She smokes several packs of tobacco cigarettes a day. A biopsy confirms vulvar intraepithelial neoplasia. What is her risk of developing squamous cell carcinoma?
Your Answer: 70%
Correct Answer: 15%
Explanation:Vulvar Intraepithelial Neoplasia (VIN) is a non-invasive squamous type lesion that carries a 15% chance of developing into squamous cell carcinoma of the vulva. Human Papillomavirus (HPV) infection, or chronic inflammatory conditions such as lichen sclerosis and lichen planus, can cause changes in the basal cells of the vulvar epithelium. Other risk factors of VIN include multiple sexual partners, cigarette smoking, and immunocompromised states. Diagnosis is by clinical examination and a biopsy confirms neoplasia.
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This question is part of the following fields:
- Clinical Management
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Question 7
Correct
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Gonadotropin-releasing hormone (GnRH) stimulates the release of:
Your Answer: Luteinizing hormone
Explanation:Gonadotropin-releasing hormone (GnRH) is the hormone responsible for the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary gland.
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This question is part of the following fields:
- Endocrinology
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Question 8
Correct
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A 26-year-old woman with irregular menstrual cycle has a positive pregnancy test. She wants to know the age of her baby.
Which of the following methods is considered the most accurate for estimating gestational age?Your Answer: Transvaginal ultrasound at 8 weeks
Explanation:Ultrasound has emerged as the more accurate method of assessing fetal gestational age, especially in the first trimester. Both transvaginal and transabdominal probe assessments are used to obtain a more accurate measurement of gestational age. Transvaginal is more helpful in first trimester pregnancies.
A transvaginal ultrasound exam should not be performed in a pregnant patient with vaginal bleeding and known placenta previa, a pregnant patient with premature rupture of membranes, and a patient who refuses exam despite informed discussion.
Sonographic assessment within the first 13 weeks and 6 days will provide the most accurate estimate of gestational age. Both transvaginal and transabdominal approaches may be used. However, the transvaginal approach may provide a more clear and accurate view of early embryonic structures. Although the gestational sac and yolk sac are the first measurable markers visible on ultrasound, these poorly correlate with gestational age.
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This question is part of the following fields:
- Obstetrics
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Question 9
Correct
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The following is a gram positive obligate anaerobe:
Your Answer: Clostridia
Explanation:Obligate anaerobes are a group of bacteria that cannot survive in an oxygen-rich environment. In the body, they are usually found on mucosal membranes such as that of the lower gastrointestinal system, or the vagina. Infection with these organisms is usually suprative and causes abscesses. Examples of gram-negative anaerobes include Bacteroides, Fusobacterium and Prevotella, while gram-positive anaerobes include Actinomyces and Clostridia. Staphylococcus and Streptococcus are both gram-positive facultative anaerobes.
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This question is part of the following fields:
- Microbiology
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Question 10
Correct
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Question 11
Correct
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Which of the following organisms causes Scarlet Fever?
Your Answer: Streptococcus pyogenes
Explanation:Streptococcus pyogenes, also known as group A beta-haemolytic streptococcus, is the organism responsible for scarlet fever. The bacteria is found in secretions from the nose, ears or the skin, and infections may be preceded by wounds, burns or respiratory infections. Symptoms may include a sore throat, fever, a red skin rash and cervical lymphadenopathy. Untreated scarlet fever in children and adolescents can lead to rheumatic fever, or post-streptococcal glomerulonephritis.
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This question is part of the following fields:
- Microbiology
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Question 12
Correct
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Bladder neck closure and relaxation of the bladder is mediated by?
Your 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 13
Correct
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The main support of the uterus is provided by:
Your Answer: The cardinal ligament
Explanation:The cardinal ligament (or Mackenrodt’s ligament, lateral or transverse cervical ligament) is a major ligament of the uterus. It is located at the base of the broad ligament of the uterus. It attaches the cervix to the lateral pelvic wall by its attachment to the Obturator fascia of the Obturator internus muscle, and is continuous externally with the fibrous tissue that surrounds the pelvic blood vessels. It thus provides support to the uterus.
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This question is part of the following fields:
- Anatomy
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Question 14
Correct
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A 32 year old woman with a 6 month history of fatigue and some weight gain reports to clinic for a review. Her medical records show evidence of hypothyroidism. On examination, a non tender, hard goitre is palpated. Further tests reveal elevated anti TPO (anti thyroid peroxidase) and anti -Tg (anti thyroglobulin). Which of the following conditions is most likely to present like this?
Your Answer: Hashimoto's
Explanation:The case presented points to a diagnosis of an autoimmune thyroiditis leading to hypothyroidism. The most common form of autoimmune hypothyroidism, Hashimoto’s, often presents with a goitre, positive for antibody tests against thyroid components i.e. anti-TPO and anti-thyroglobulin. Graves disease and toxic diffuse goitre are more likely to cause hyperthyroidism. While De-Quervain’s and endemic goitre may cause hypothyroidism, they don’t result in positive antibody tests.
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This question is part of the following fields:
- Endocrinology
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Question 15
Correct
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When consenting a patient for abdominal hysterectomy what would you advise regarding the risk?
Your Answer: Injury to ureter or bladder is approximately 1%
Explanation:Abdominal hysterectomy is performed through a Pfannenstiel incision. There are certain complications associated with hysterectomy including haemorrhage, injury to the ureter(1%) and less commonly bladder and bowel (0.04%).
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This question is part of the following fields:
- Clinical Management
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Question 16
Correct
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In normal pregnancy, the value of β-hCG doubles every:
Your Answer: 2 days
Explanation:During early pregnancy, hCG can be detected in the maternal serum as early as 6 to 8 days after fertilization. hCG levels are dynamically increased and doubled every 48 h in most normal pregnancies, and this pattern is similar in both in vivo or in vitro (IVF) conceptions.
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This question is part of the following fields:
- Physiology
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Question 17
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 18
Correct
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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 no identifiable fetal tissue or gestational sac and you note the radiologist has reported a 'bunch of grapes sign'. What is the likely diagnosis?
Your Answer: Complete molar pregnancy
Explanation:Gestational trophoblastic disorder is abnormal conception that is characterised by swollen and oedematous villi with proliferation of the trophoblasts. In a complete mole there is absence of fetal tissue, there is diffuse proliferation of trophoblastic tissue around hydropic villi and on USG it appears as a bunch of grapes or snow storm appearance.
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This question is part of the following fields:
- Clinical Management
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Question 19
Correct
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A 26-year-old woman, at 37 weeks and 2 days gestation and currently in her second pregnancy, presents with a breech presentation. She previously delivered a baby girl weighing 3.8kg via spontaneous vaginal delivery at term. Ultrasound examination this time shows a breech presentation with extended legs. She wishes to deliver vaginally if it is possible.
Which is the most appropriate next step to take?
Your Answer: Await spontaneous onset of labour.
Explanation:The most suitable step would be to wait for spontaneous onset of labour. This woman would be able to deliver vaginally in 3 situations. The first would be if the foetus is estimated to weigh less than 3800g (first child weight 3800g). Another would be if the foetus is in a frank or complete breech presentation and lastly if the rate of labour progress is satisfactory and breech extraction is unnecessary. RCOG (Royal College of Obstetricians & Gynaecologists) guidelines recommends that women should be informed that elective Caesarean section for the delivery of a breech baby would have a lower risk of perinatal mortality than a planned vaginal delivery. This is because with an elective Caesarean section, we would be able to avoid stillbirth following 39 weeks of gestation as well as intrapartum and vaginal breech delivery risks. The ideal mode of delivery of a breech foetus when labour starts or at least close to term is a Caesarean section as the risks towards the foetus would be significantly increased in a vaginal delivery. The obstetrician is responsible to ensure that there are no other abnormalities that could complicate this even further such as footling presentation, low estimated birth weight (less than 10th centile), hyperextended neck on ultrasound, evidence of fetal distress and high estimated birth weight (>3.8kg). Provided that there is a normal progression of events, fetal risks during both labour and delivery should be low if such factors are absent. Hence, it is right to await the onset of labour to occur spontaneously in this case. In order to exclude a knee presentation with fetal head extension or a footling breech, ultrasound examination has to be done. These are linked to a high fetal risk if the mother attempts vaginal delivery. X-ray pelvimetry is advisable but is not essential in fetal size assessment since its accuracy is roughly 20%. In this case, it is not indicated since there is evidence that her pelvis is of adequate size as she had already delivered a 3.9kg baby prior. It is best to avoid induction of labour in breech cases for numerous reasons (need for augmentation, cord prolapse).
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This question is part of the following fields:
- Obstetrics
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Question 20
Correct
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Question 21
Correct
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A 30-year-old pregnant woman presents to the emergency department.
She is at 38 weeks gestation and has gone into labour.
On examination, her cervix is 7cm dilated.
Which of the following would be indicative of obstructed labour and the need for delivery by Caesarean section?Your Answer: A brow presentation in a nulliparous woman.
Explanation:A brow presentation in a nulliparous woman is associated with high risk of obstructed labour and the need for delivery by Caesarean section.
Brow presentation occurs when the presenting part of the fetal head is the part between the orbital ridge and anterior fontanelle.
In multiparous women, the indications differ as vaginal manipulation or spontaneous flexion to a vertex presentation or extension to a face presentation can occur after full cervical dilatation.
Early fetal heart decelerations are indicative of a mild abnormality on cardiotocograph (CTG). It does not indicate obstructive labour or need for delivery by Caesarean section.
The slow descent of the fetal head can be controlled subsequently by good uterine contractions and allow for vaginal birth.
Prolonged labour can cause maternal fever, but that in isolation is not an indication for Caesarean section.
Caput and head moulding are associated with a ‘tight fit’ of the fetal head in the pelvis, but does not contraindicate vaginal birth.
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This question is part of the following fields:
- Obstetrics
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Question 22
Incorrect
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Which of the following statements regarding progesterone production in the ovary is true?
Your Answer: Synthesised from androgen by Granulosa cells
Correct Answer: Synthesised from cholesterol by Luteal cells
Explanation:After the release of the oocyte, the theca and the granulosa cells form the corpus luteum which undergoes extensive vascularization for continued steroidogenesis. Progesterone is secreted by the luteal cells and is synthesized from cholesterol.
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This question is part of the following fields:
- Endocrinology
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Question 23
Incorrect
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A 24-year-old woman is planning to conceive and comes for your advice. She has a history of juvenile myoclonic epilepsy and has been stable on sodium valproate. Despite your full explanations about the risks of the teratogenicity of antiepileptic drugs, she insists she wants to be a mother and asks you to guide her.
Among the following which would be the most appropriate advice to give this patient?Your Answer: Discontinue sodium valproate
Correct Answer: Continue sodium valproate
Explanation:As they respond differently to different drugs, a thorough distinguishing must be done between the two major groups of epilepsies while approaching a woman, who wishes to become pregnant while on antiepileptic drugs.
Partial epilepsies will respond to most of the antiepileptic drugs, but in case of idiopathic generalized epilepsies, especially in juvenile myoclonic epilepsy, seizure can be controlled only with a reasonably low dose of sodium valproate. Although lamotrigine may be helpful but substitution of sodium valproate with lamotrigine is not the right choice. This is because lamotrigine is not as effective as sodium valproate and will sometimes worsens myoclonic seizures in juvenile myoclonic epilepsy.
Topiramate and levetiracetam are found to be effective in idiopathic generalized epilepsy, while carbamazepine, phenytoin and gabapentin may worsen some seizure types, especially in myoclonic and absence seizures. For some women with idiopathic generalized epilepsies, there will be no effective alternative to sodium valproate as cessation of sodium valproate will lead to recurrence of the generalized seizures, especially juvenile myoclonic epilepsy. Hence, it is not advisable to discontinue the drug in auch patients.
On the other hand, sodium valproate have the highest reported teratogenicity potential among antiepileptic drugs and the Australian Pregnancy Register has reported the risk to be as high as 16% if used in first trimester. Sodium valproate should be avoided in women of reproductive age and if a patient on the medication is willing to become pregnant, she should be well informed about the risk of teratogenicity and the decision must be left to her. If she decides to accept the risks and continue with pregnancy, the lowest possible effective dose should be prescribed to her.
If the dose of sodium valproate has been reduced to minimum during pregnancy to reduce the possible teratogenesis, it is recommended to re-establish the prepartum effective dose before the onset of labor. This is because, it is the time with increased risk for seizures, especially in patients with idiopathic generalised epilepsy who are very sensitive to sleep deprivation. Valproate therapy is found to be safe during breastfeeding.
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This question is part of the following fields:
- Obstetrics
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Question 24
Correct
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Which stage of the menstrual cycle in best suited for the insertion of IUD?
Your Answer: During the first 7 days of your menstrual cycle, which starts with the first day of bleeding
Explanation:it is imperative to elucidate the patient’s risk for current pregnancy and time within her current menstrual cycle prior to IUD insertion. A negative urine pregnancy test is a prerequisite to placement of an IUD. Pregnancies occurring with IUDs in place have an increased incidence of complications, including spontaneous abortion and septic abortion.
For this reason, many providers prefer to time IUD insertion within the first 5-7 days of the menstrual cycle, further assuring that the patient is not newly pregnant.
All other options take risk of the patient being pregnant.
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This question is part of the following fields:
- Gynaecology
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Question 25
Correct
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All of the following complications can be found in a pregnant patient with a bicornuate uterus, except?
Your Answer: Polyhydramnios
Explanation:Women with a bicornuate uterus are at increased risk of recurrent abortions, premature birth, fetal malpositioning, placenta previa and retained products of placenta leading to post partum haemorrhage.
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This question is part of the following fields:
- Embryology
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Question 26
Incorrect
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Question 27
Correct
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A 20-year-old nulligravid woman comes to the office for a routine checkup, as she is concerned about having gained 4.5 kg over the last year. She believes that the gain is related to her oral contraceptive pills.
Patient takes low-dose ethinyl estradiol
orethindrone daily. Prior to starting the pills, she had regular but heavy periods lasting for 4-5 days. Patient used to miss her school every month, on the first day of her period, due to severe cramping. Her pain symptoms resolved 3 months after starting the pills and she takes no other medications. Patient's coitarche was at the age of 18 and she has had 2 partners since then. Patient and her current partner use condoms inconsistently.
On examination her vital signs are normal, with a BMI of 27 kg/m2 and physical examination is unremarkable.
Among the following which is the most appropriate advice for this patient?Your Answer: Reassure that the weight gain is not related to combined OCPs
Explanation:Breakthrough bleeding, breast tenderness, nausea, bloating, amenorrhea, hypertension, venous thromboembolic disease, increased risk of cervical cancer with decreased risk of ovarian & endometrial cancer, liver disorders like hepatic adenoma and increase in triglycerides due to estrogen component are the common side effects & risks of using combination oral contraceptives.
Patient in the given case mentioned symptoms of primary dysmenorrhea, which is recurrent lower abdominal pain associated with menstruation. Combination estrogen-progestin oral contraceptive pills (OCPs) are considered as the first-line treatment for dysmenorrhea in sexually active patients as OCPs help to reduce pain by thinning the endometrial lining, reducing prostaglandin release and by decreasing uterine contractions.
Nausea, bloating and breast tenderness, are considered as the early side effects of OCPs and will usually improve with continued use. The most common side effect is breakthrough bleeding which is usually associated with lower estrogen doses and other adverse effects caused by the pills include hypertension, increased risk of cervical cancer and venous thromboembolism. Although common perception considers weight gain as a side effect, several studies have shown that no significant weight gain is associated with OCPs, particularly with low-dose formulations. Considering this, the patient should be reassured that her weight gain is not associated with regular use of OCPs.In patients who are not sexually active, nonsteroidal anti-inflammatory drugs are considered as the first-line treatment for primary dysmenorrhea. As stopping contraception will increase this Patient’s risk of unintended pregnancy this is not advisable to her.
Switching the patient to a copper intrauterine device (IUD) will decrease systemic side effects, but as its inflammatory reaction in the uterus may increase pain symptoms, copper IUD is not recommended for patients with dysmenorrhea.
As Medroxyprogesterone will increase body fat and decrease lean muscle mass resulting in weight gain is not a good option for this patient. Also medroxyprogesterone due to its risk of significant loss of bone mineral density, is not recommended for adolescents or young women. So it can be used in this age group only if other options are unacceptable.
Presence of estrogen component is the main reason behind the side effects of combination OCPs. Progesterone-only pills have relatively fewer side effects but as they do not inhibit ovulation, they are less effective for treating dysmenorrhea and for contraception.
Combination oral contraceptive pills are the first-line therapy for primary dysmenorrhea in sexually active patients. Its side effects include breakthrough bleeding, hypertension, and increased risk of venous thromboembolism. Researches proves that weight gain is usually not an adverse effect of OCPs.
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This question is part of the following fields:
- Obstetrics
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Question 28
Correct
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Which of the following statements regarding Management of Beta Thalassaemia in Pregnancy is not part of the RCOG guidelines?
Your Answer: Folic acid 5 mg daily should be commenced 12 months prior to conception
Explanation:Women with Beta-Thalassaemia require significant extra input during pregnancy. Folic acid 5 mg daily should be commenced 3 months prior to conception in these patients. NOTE Women with thalassaemia who have undergone splenectomy OR have a platelet count >600 should continue or be commenced on Aspirin (75 mg/day)
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This question is part of the following fields:
- Genetics
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Question 29
Correct
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What is the most common cause of sepsis in the puerperium?
Your Answer: Endometritis
Explanation:Significant puerperal pyrexia is defined as a temperature of 38ºC or higher on any two of the first 10 days postpartum, exclusive of the first 24 hours. A mixed flora normally colonizes the vagina with low virulence. Puerperal infection is usually polymicrobial and involves contaminants from the bowel that colonize the perineum and lower genital tract. Following delivery, natural barriers to infection are temporarily removed and therefore organisms with a pathogenic potential can ascend from the lower genital tract into the uterine cavity. Placental separation exposes a large raw area equivalent to an open wound, and retained products of conception and blood clots within the uterus can provide an excellent culture medium for infection.
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This question is part of the following fields:
- Clinical Management
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Question 30
Correct
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You are attending the labour of a patient who has had a prolonged 1st stage of labour. You note the fetal head start to retract after being tightly applied to the vulva (turtle-neck sign). What is the next most appropriate management step?
Your Answer: McRoberts' manoeuvre
Explanation:Signs of shoulder dystocia:
– Difficulty with delivery of the face and chin
– The head remaining tightly applied to the vulva or even retracting (turtle-neck sign)
– Failure of restitution of the fetal head
– Failure of the shoulders to descend
Upon identifying shoulder dystocia additional help should be called and McRoberts manoeuvre (flexion and abduction of the maternal hips, positioning the maternal thighs on her abdomen) should be performed first. Fundal pressure is associated with uterine rupture and should not be used. -
This question is part of the following fields:
- Clinical Management
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