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  • Question 1 - A 25-year-old woman presented to the medical clinic due to fever and dysuria...

    Incorrect

    • A 25-year-old woman presented to the medical clinic due to fever and dysuria which has been going on for the past 3 days. The presence a pruritic, erythematous vulvar rash that is particularly painful during urination was also noted on the patient. Upon history taking, she mentioned that she is sexually active with one partner, and they use condoms inconsistently.

      Physical examination was done and the following are her results:
      Temperature is 38.7 deg C
      Blood pressure is 120/80mmHg
      Pulse is 84/min

      Abdominal examination was done and revealed that there is suprapubic fullness.
      Upon pelvic examination, the presence of several tender ulcerated lesions with circular borders on the inside of the left labia minora were noted.
      Speculum examination revealed no cervical friability or mucopurulent discharge. There is also enlarged and tender left inguinal lymph nodes.
      Urethral catheterization was then performed due to difficulty with spontaneous voiding.

      The results of her urinalysis are as follows:
      Leukocyte esterase = positive
      Nitrites = negative
      Bacteria = none
      White blood cells = 15/hpf

      Her urine pregnancy test turned out negative.

      Which of the following tests will most likely be considered to establish the patient’s diagnosis?

      Your Answer: Rapid plasma reagin testing for Treponema pallidum

      Correct Answer: Viral culture of lesion for herpes simplex virus

      Explanation:

      While HSV-1 often affects the perioral region and can be known to cause genital lesions, HSV-2 is more commonly the consideration when patients present with genital lesions.
      HSV-2 is transmitted through direct contact of sections in a seropositive individual who is actively shedding the virus. The virus preferentially affects the skin and mucous membranes with the virus invading epithelial cells on initial exposure and ultimately replicating intracellularly at that site.

      HSV-2, in particular, may present as a primary infection with painful genital ulcers, sores, crusts, tender lymphadenopathy, and dysuria. The classical features are of macular or papular skin and mucous membrane lesions progressing to vesicles and pustules that often last for up to 3 weeks. Genital lesions can be especially painful, leading to swelling of the vulva in women, burning pain, and dysuria.

      Given that symptoms can mimic acute urinary tract infection, consider urinalysis and culture.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 2 - A 28-year-old woman had a C-section due to pre-eclampsia. She now complains of...

    Incorrect

    • A 28-year-old woman had a C-section due to pre-eclampsia. She now complains of right upper quadrant pain unrelated to the surgical wound. Which of the following investigations should be done immediately?

      Your Answer: Liver US

      Correct Answer: LFT

      Explanation:

      There is a high risk of developing HELLP syndrome in pre-eclamptic patients. Considering that she is complaining of right upper quadrant pain, a LFT should be done immediately.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 3 - A 33-year -old G2Pl woman who is at 10 weeks gestation presented to...

    Correct

    • A 33-year -old G2Pl woman who is at 10 weeks gestation presented to the medical clinic for antenatal visit. It was revealed that she has a twin pregnancy. She was known to have had a complicated previous pregnancy with placental abruption at 34 weeks.

      Which of the following is considered the next step in best managing the patient in addition to routine antenatal care?

      Your Answer: Increased iron and folic acid supplementation

      Explanation:

      Twin pregnancies are at risk for iron deficiency due to significant maternal, fetal, and placental demands. Recommendations regarding the optimal iron dose in twin pregnancies are based on clinical expert opinions, advocating doubling the dose of iron from 30 mg of elemental iron to 60 mg routinely during the second and third trimester, regardless of maternal iron stores.

      If pregnant with twins, patient should take the same prenatal vitamins she would take for any pregnancy, but a recommendation of extra folic acid and iron will be made. The additional folic acid and extra iron will help ward off iron-deficiency anaemia, which is more common when patient is pregnant with multiples.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 4 - A 26-year-old pregnant woman in her third trimester, was admitted with headache, abdominal...

    Correct

    • A 26-year-old pregnant woman in her third trimester, was admitted with headache, abdominal pain and visual disturbances. Shortly after, she had a fit. What is the most appropriate management?

      Your Answer: 4g MgSO4 in 100ml 0.9% Normal saline in 5 min.

      Explanation:

      The woman is most probably suffering from eclampsia.
      Magnesium sulphate (MgSO4) is the agent most commonly used for treatment of eclampsia and prophylaxis of eclampsia in patients with severe pre-eclampsia. It is usually given by either intramuscular or intravenous routes. The intramuscular regimen is most commonly a 4 g intravenous loading dose, immediately followed by 10 g intramuscularly and then by 5 g intramuscularly every 4 hours. The intravenous regimen is given as a 4 g dose, followed by a maintenance infusion of 1 to 2 g/h by controlled infusion pump.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 5 - Which of the following is known to be the commonest presentation in twins?...

    Incorrect

    • Which of the following is known to be the commonest presentation in twins?

      Your Answer: Cephalic, breech

      Correct Answer: Cephalic, cephalic

      Explanation:

      The commonest foetal presentation in twin pregnancy is cephalic-cephalic.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 6 - A 22 year old woman had a C-section two hours ago. However, she...

    Correct

    • 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.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 7 - All of the following statements are considered correct regarding Down syndrome screening in...

    Correct

    • All of the following statements are considered correct regarding Down syndrome screening in a 40-year-old pregnant woman, except:

      Your Answer: Dating ultrasound together with second trimester serum screening test has detection rate of 97%

      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).

    • This question is part of the following fields:

      • Obstetrics
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  • Question 8 - Which of the following is indicated for the treatment of chlamydial urethritis in...

    Incorrect

    • Which of the following is indicated for the treatment of chlamydial urethritis in pregnancy?

      Your Answer: None of the above

      Correct Answer: Azithromycin 1gram as single dose

      Explanation:

      The best treatment option for chlamydial urethritis in pregnancy is Azithromycin 1g as a single dose orally. This is the preferred option as the drug is coming under category B1 in pregnancy.

      Tetracycline antibiotics, including doxycycline, should never be used in pregnant or breastfeeding women.

      Erythromycin Estolate is contraindicated in pregnancy due to its increased risk for hepatotoxicity. Ciprofloxacin is not commonly used for treating chlamydial urethritis and its use is not safe during pregnancy.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 9 - Among the following presentations during pregnancy, which is not associated with maternal vitamin...

    Correct

    • Among the following presentations during pregnancy, which is not associated with maternal vitamin D deficiency?

      Your Answer: Large for gestational age

      Explanation:

      Retarded skeletal growth resulting in small for gestational age babies are the usual outcomes of an untreated vitamin D deficiency in pregnancy.

      Symptoms associated with maternal vitamin D deficiency during pregnancy are:
      – Hypocalcemia in newborn.
      – Development of Rickets later in life.
      – Defective tooth enamel.
      – Small for gestational age due to its effect on skeletal growth
      – Fetal convulsions or seizures due to hypocalcemia.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 10 - A 30-year-old pregnant woman presents to the emergency department.

    She is at 38 weeks...

    Incorrect

    • 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: Caput and moulding of the fetal head.

      Correct 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.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 11 - In her first pregnancy, a 27-year-old lady suffered a fever and malaise around...

    Correct

    • In her first pregnancy, a 27-year-old lady suffered a fever and malaise around 10 weeks of pregnancy. She had come into touch with a youngster who had been diagnosed with rubella two weeks prior. Which of the following would be the best next step in your management career?

      Your Answer: Serial blood samples for rubella antibody assessment.

      Explanation:

      If the patient already has immunity (IgG positive) and if maternal rubella infection is the cause of the current symptoms (initial lgG and IgM negative, but IgM positive on a second sample 2-3 weeks later), amniocentesis may be required to confirm fetal infection.
      Ultrasound may reveal growth limitation in late pregnancy, but a fetal congenital defect is rare when the infection begins at 10 weeks of pregnancy, and ultrasound testing at 12 weeks of pregnancy is unlikely to detect abnormalities, while it may discover one from 18-20 weeks. Given the well-known deleterious fetal effects of rubella infection in early pregnancy, gamma-globulin is unlikely to be beneficial at this point in the infective process, and pregnancy termination would certainly be considered by some individuals.
      On the basis of prenatal rubella infection, this would not be recommended unless the infection was shown to have occurred.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 12 - In developed countries, Group B streptococcus is the leading cause of early-onset neonatal...

    Incorrect

    • In developed countries, Group B streptococcus is the leading cause of early-onset neonatal sepsis. The risk of early onset neonatal Group B Streptococcus sepsis can be reduced by screening for Group B streptococcus status and by the use of intrapartum antibiotics.

      From the below given statements, which is false regarding Group B streptococcus screening and intrapartum antibiotics prophylaxis?

      Your Answer: If a woman’s Group B streptococcus carriage status is unknown at the time of labour onset, then treatment according to clinical risk factors is appropriate

      Correct Answer: For elective caesarian section before the commencement of labour give antibiotics prophylaxis is recommended, irrespective of Group B streptococci carriage

      Explanation:

      A rectovaginal swab taken for Group B streptococci culture should be done in women presenting with threatened preterm labour

      If labour is establishes, intrapartum antibiotic prophylaxis for Group B streptococci should be commenced and continued until delivery. In cases were labour is not establish, prophylaxis for Group B streptococci should be ceased and should be re-established only if the culture is found to be positive, that too at the time of onset of labour.

      Strategies acceptable for reducing early onset Group B streptococci sepsis includes universal culture-based screening using combined low vaginal plus or minus anorectal swab at 35-37 weeks gestation or a clinical risk factor based approach.

      No additional prophylaxis is recommended irrespective of Group B streptococci carriage, for elective cesarean section before the commencement of labour. However, if a woman who commences labour or has spontaneous rupture of the membranes before her planned Caesarean section is screened positive for Group B streptococci, she should receive intrapartum antibiotic prophylaxis while awaiting delivery.

      Although there is little direct evidence to guide this practice, consideration of the above mentioned evidences it is recommendation that, every women with unknown Group B streptococci status at the time of delivery should be managed according to the presence of intrapartum risk factors.
      All women at increased risk of early onset Group B streptococci sepsis must be offered an intrapartum antibiotic prophylaxis with IV penicillin-G or ampicillin.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 13 - Among the following conditions which is not a contraindication to tocolysis? ...

    Correct

    • Among the following conditions which is not a contraindication to tocolysis?

      Your Answer: Maternal hypothyroidism

      Explanation:

      Maternal hypothyroidism which is usually treated with thyroxine is not a contraindication for suppression of labour.
      Suppression of labour known as tocolysis is contraindicated in situations like suspected foetal compromise, which is diagnosed by cardiotocograph warranting delivery, in cases of placental abruption, in chorioamnionitis, in severe pre-eclampsia, cases were gestational age is more than 34 weeks, in cases of foetal death in utero and in cases where palliative care is planned due to foetal malformations.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 14 - A 25-year old Asian woman comes to your clinic at 36 weeks of...

    Incorrect

    • A 25-year old Asian woman comes to your clinic at 36 weeks of gestation. She was diagnosed with breech at 32 weeks. She is not in labor and a manual examination of the uterus is suggestive of breech position.

      Which one of the following would be the next best step in management of this patient?

      Your Answer: Cesarean delivery

      Correct Answer: Pelvic ultrasound

      Explanation:

      An ultrasonography is performed for confirmation, as well as for the evaluation of maternal pelvis, fetal size and viability in cases were breech presentation is suspected on manual examination. As there is a chance for spontaneous correction of breech presentation into cephalic during 36 to 37 weeks, this should be considered in every future visit. The chances for spontaneous version reduces to 25% if breech position persists beyond this period of time.

      It an external cephalic version should be offered to all women with breech presentation, provided there are no contraindications or indication for cesarean delivery due to other reasons.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 15 - A 32-year-old woman at 37 weeks of gestation, who has been fine antenatally,...

    Correct

    • A 32-year-old woman at 37 weeks of gestation, who has been fine antenatally, presented with a history of sudden onset of severe abdominal pain with vaginal bleeding, and cessation of contractions after 18 hours of active pushing at home.

      On examination, she is conscious and pale.
      Her vital signs include blood pressure of 70/45 mm of Hg and a pulse rate of 115 beats per minute which is weak.
      Her abdomen is irregularly distended, with both shifting dullness and fluid thrill present. Fetal heart sounds are not audible.

      What will be the most likely diagnosis?

      Your Answer: Uterine rupture

      Explanation:

      Patient’s presentation is classic for uterine rupture, were she developed sudden abdominal pain followed by cessation of contractions, termination of urge to push and vaginal bleeding.
      Abdominal examination shows no fetal cardiac activity and signs of fluid collection like fluid thrill and shifting dullness. The fluid collected will be blood, which usually enters the peritoneum after the rupture of the uterus. In such patients vaginal examination will reveal a range of cervical dilatation with evidences of cephalopelvic disproportion.
      Anterior lower transverse segment is the most common site for spontaneous uterine rupture. Patient in the case presenting with tachycardia and hypotension is in shock due to blood loss and will require urgent resuscitation.

      Placenta previa presents with painless bleeding from the vagina and Placental abruption will present with painful vaginal bleeding with tender and tense uterine wall, however, in contrary to that of uterine rupture, uterine contractions will continue in both these cases.

      Shoulder dystocia is more likely to present in a prolonged labour with a significant delay in the progress of labour. However, in this case, there is no mention of shoulder dystocia.

      Disseminated intravascular coagulation (DIC) is a condition which is causes due to abnormal and excessive generation of thrombin and fibrin in the circulating blood which results in bleeding from every skin puncture sites. It results in increased platelet aggregation and consumption of coagulation factors which results in bleeding at some sites and thromboembolism at other sites. Placental abruption, or retained products of conception in the uterine cavity are the causes for DIC.

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      • Obstetrics
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  • Question 16 - A 27-year-old woman presented to the medical clinic due to infertility. Upon interview,...

    Incorrect

    • A 27-year-old woman presented to the medical clinic due to infertility. Upon interview, it was noted that she has been having unprotected intercourse with her husband regularly for the past year but has not become pregnant. She mentioned that her last menstrual period was 3 weeks ago. Her menses occur every 28 to 30 days and they last 4 to 5 days. A day before her menses, she has episodes of severe lower abdominal pain that is only partially relieved by ibuprofen.
      Further history taking was done and revealed that she was treated for gonococcal cervicitis at age 19. The patient also takes a prenatal vitamin every day and does not use tobacco, alcohol, or illicit drugs. Her 31-year-old husband recently had semen analysis and his results were normal.

      Further examination was done and the following are her results:
      Blood pressure is 126/70mmHg
      Pulse is 85/min
      BMI is 31 kg/m2

      Upon further examination and observation, it was revealed that she has a small uterus with a cervix that appears laterally displaced and there is accompanying pain upon cervical manipulation.

      Which of the following is most likely considered the cause of the patient’s infertility?

      Your Answer: Unicornuate uterus

      Correct Answer: Endometriosis

      Explanation:

      Endometriosis is a chronic gynaecologic disease characterized by the development and presence of histological elements like endometrial glands and stroma in anatomical positions and organs outside of the uterine cavity. The main clinical manifestations of the disease are chronic pelvic pain and impaired fertility. The localization of endometriosis lesions can vary, with the most commonly involved focus of the disease the ovaries followed by the posterior broad ligament, the anterior cul-de-sac, the posterior cul-de-sac, and the uterosacral ligament.

      The clinical presentation of the disease differs in women and may be unexpected not only in the presentation but also in the duration. Clinicians usually suspect and are more likely to diagnose the disease in females presenting with the typical symptomatology such as dyspareunia, namely painful sexual intercourse, pelvic pain during menstruation (dysmenorrhea), pain in the urination (dysuria), defecation (dyschezia), and/or infertility. The pain is usually characterized as chronic, cyclic, and progressive (exacerbating over time). Furthermore, some women suffering from endometriosis experience hyperalgesia, a phenomenon, when even with the application of a nonpainful stimulus, an intolerable painful reaction is released. This condition indicates neuropathic pain.

      Tenderness on vaginal examination, palpable nodules in the posterior fornix, adnexal masses, and immobility of the uterus are diagnostically indicating findings of endometriosis.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 17 - A newborn male infant, born to a 30-year-old gravida 3 para 0 aborta...

    Incorrect

    • A newborn male infant, born to a 30-year-old gravida 3 para 0 aborta 2 woman, who did not receive any prenatal care, is evaluated in the neonatal intensive care unit for growth restriction. The mother who presented for labor at approximately 38 weeks of gestation, had a forceps-assisted vaginal delivery due to fetal heart rate abnormalities. 

      The newborn's Apgar scores were 6 and 8 at 1 and 5 minutes, respectively and his weight was 2.5 kg.  Physical examination shows microcephaly, a wide anterior fontanelle, cleft palate and hypoplasia of the distal phalanges.

      A history of which of the following will be obtained on further evaluation of the mother?

      Your Answer: Alcohol use

      Correct Answer: Phenytoin use

      Explanation:

      This infant will most likely be diagnosed as having fetal hydantoin syndrome, which occurs due to an in utero exposure to antiepileptic drugs like phenytoin, carbamazepine, valproate etc. 

      Multiple antiepileptics, due to their ability to cross placenta, have teratogenic effects which will result in low folate and high oxidative metabolite levels in the fetus. This likely combined effect results deformities like cleft lip and palate, wide anterior fontanelle, distal phalangeal hypoplasia and cardiac anomalies like pulmonary stenosis, aortic stenosis etc in the fetus. There will be developmental delay and poor cognitive outcomes as a result of neural tube defects and microcephaly associated with this. Therefore, prior to conception, those patients who require antiepileptics for seizure control during pregnancy should titrate it to the lowest dose and must started on high-dose (4 mg) folic acid supplementation to minimize the risk of such congenital malformations.

      Fetal alcohol syndrome commonly presents with microcephaly and midfacial hypoplasia, but is not association with cleft lip or palate.

      Cocaine use during pregnancy can be associated with preterm delivery, abruptio placentae and fetal growth restriction; but there is no evidence to prove its association with congenital defects.

      Fetal renal failure with associated oligohydramnios that results in pulmonary hypoplasia, growth restriction, and limb defects are the complications associated with the use of lisinopril and other angiotensin-converting enzyme inhibitors during pregnancy; but it does not cause cleft lip or palate.

      Most infants with congenital syphilis are asymptomatic at birth and those with symptoms typically have rhinitis or “snuffles, hepatomegaly and a maculopapular rash none of which are seen in this patient.

      Fetal hydantoin syndrome results from the in-utero exposure to antiepileptic drugs like phenytoin, carbamazepine etc and is usually presented with microcephaly, a wide anterior fontanelle, cleft lip and palate, and distal phalangeal hypoplasia.

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      • Obstetrics
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  • Question 18 - A 27-year-old pregnant elementary school teacher presented to the medical clinic because she...

    Correct

    • 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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      • Obstetrics
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  • Question 19 - Antenatal booking investigations include all of the following, EXCEPT: ...

    Correct

    • Antenatal booking investigations include all of the following, EXCEPT:

      Your Answer: Thyroid function

      Explanation:

      These are the six routine blood tests that every mum-to-be has to undergo around week 7 of pregnancy: Full Blood Count, Blood Typing, Hepatitis B Screening, Syphilis Screening, HIV Screening and Oral Glucose Tolerance Test (OGTT)

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      • Obstetrics
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  • Question 20 - Which one of the following features indicates complete placental separation after delivery? ...

    Correct

    • Which one of the following features indicates complete placental separation after delivery?

      Your Answer: All of the options given

      Explanation:

      At the time of delivery, the most important signs of complete placental separation are lengthening of the umbilical cord, per vaginal bleeding and change in shape of uterus from discoid to globular shape. The uterus contracts in size and rises upward.

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      • Obstetrics
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  • Question 21 - Which of the following procedures allow the earliest retrieval of DNA for prenatal...

    Correct

    • Which of the following procedures allow the earliest retrieval of DNA for prenatal diagnosis in pregnancy:

      Your Answer: Chorionic Villi Sampling (CVS)

      Explanation:

      CVS has decreased in frequency with the recent increased uptake of cell-free DNA screening. It remains the only diagnostic test available in the first trimester and allows for diagnostic analyses, including fluorescence in situ hybridization (FISH), karyotype, microarray, molecular testing, and gene sequencing. CVS is performed between 10 and 14 weeks’ gestation. CVS has been performed before 9 weeks in the past, though this has shown to increase the risk of limb deformities and, therefore, is no longer recommended.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 22 - A 38-year-old woman, gravida 4 para 0 aborta 3, at 35 weeks of...

    Correct

    • A 38-year-old woman, gravida 4 para 0 aborta 3, at 35 weeks of gestation comes to the hospital due to intense, constant lower abdominal pain. The patient got conceived via in-vitro fertilization and her prenatal course has been uncomplicated. Over the past 10 years, the patient has had 3 spontaneous abortions, all attributed to uterine leiomyoma. Two years ago, she had an abdominal myomectomy during which the uterine cavity was entered. 

      On examination her temperature is 36.7 C (98 F), blood pressure is 132/84 mm Hg, and pulse is 100/min. The fetal heart rate tracing shows a baseline rate in the 140s with moderate variability and persistent variable decelerations to the 90s.  Contractions occur every 2-3 minutes and last for 45 seconds, her cervix is 4 cm dilated and 100% effaced. 

      Which among the following is the best next step in management of this patient?

      Your Answer: Laparotomy and cesarean delivery

      Explanation:

      Uterine surgical history & scope of vaginal birth are as follows:
      – In case of low transverse cesarean delivery with horizontal incision: trial of labor is not contraindicated.
      – Classical cesarean delivery with vertical incision: trial of labor is contraindicated
      – Abdominal myomectomy with uterine cavity entry: trial of labor is contraindicated
      – Abdominal myomectomy without uterine cavity entry: trial of labor is not contraindicated.

      In laboring patients with prior uterine surgical histories like a prior classical (vertical) cesarean delivery or a prior myomectomy that was extensive or has entered the uterine cavity like during removal of intramural or submucosal fibroids are at a higher risk for uterine rupture. Given this patient’s history of previous myomectomy, her intense and constant abdominal pain with an abnormal fetal heart rate tracing, like persistent variable decelerations, are pointing to uterine rupture. vaginal bleeding, abdominally palpable fetal parts, loss of fetal station and any change in contraction pattern are the other possible manifestations of uterine rupture. Based on the extent and exact location of the rupture and the presence or absence of regional anesthesia, presentation of a uterine rupture will change.

      Vaginal delivery is safe after a low transverse (horizontal uterine incision) cesarean delivery. Patients with a history of either classical cesarean delivery or an extensive myomectomy are delivered via cesarean delivery at 36-37 weeks gestation, so urgent laparotomy and cesarean delivery are required if these patients present in labor. Further management is determined by other intraoperative findings like, whether uterine rupture has occurred, if occured then delivery is done through the rupture site, followed by a uterine repair; If the uterus is unruptured, a hysterotomy (ie, cesarean delivery) is performed. In patients with prior classical cesarean delivery or extensive myomectomy, an expectant management for a vaginal delivery is contraindicated.

      Amnioinfusion is the technique of placing an intrauterine pressure catheter to decrease umbilical cord compression by doing an intrauterine infusion and this thereby helps to resolve variable decelerations. In patients with a history of uterine surgery Amnioinfusion is contraindicated.

      In cases with abnormal fetal heart rate tracings, if the patient is completely (10cm) dilated, an operative vaginal delivery can be performed to expedite a vaginal delivery.

      Terbutaline is a tocolytic, which is administered to relax the uterus in conditions with contractile abnormalities, such as tachysystole which presents with >5 contractions in 10 minutes or tetanic contractions were contractions last for >2 minutes, which results in fetal heart rate abnormalities. In the given case, the patient’s contractions are normal, which occurs in every 2-3 minutes and lasts for 45 seconds, causing pain and cervical dilation.

      After a classical cesarean delivery or an extensive myomectomy, labor and vaginal delivery are contraindicated due to its significant risk of uterine rupture. Laparotomy and cesarean delivery are preferred in laboring a patients at high risk of uterine rupture.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 23 - Bishop scoring is used for: ...

    Correct

    • Bishop scoring is used for:

      Your Answer: The success rate of induction of the labour

      Explanation:

      The Bishop score is a system used by medical professionals to decide how likely it is that you will go into labour soon. They use it to determine whether they should recommend induction, and how likely it is that an induction will result in a vaginal birth.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 24 - A 25-year-old lady is somewhat jaundiced, has black urine, and has pruritus of...

    Correct

    • 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: 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.

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  • Question 25 - A patient, in her third pregnancy with a history of two consecutive spontaneous...

    Incorrect

    • A patient, in her third pregnancy with a history of two consecutive spontaneous abortions, presents at 12 weeks of gestation. She has had regular menstrual cycles, lasting 30 days in duration. Just prior to coming for her assessment, she reports passing a moderate amount of blood with clots per vaginally along with some intermittent lower abdominal pain. On examination, her cervical canal readily admitted one finger. Bimanual palpation found a uterus corresponding to the size of a pregnancy of 8 weeks’ duration.

      Which is the most appropriate next step in managing this patient?

      Your Answer: Pregnancy test.

      Correct Answer: Vaginal ultrasound.

      Explanation:

      It is essential to notice the important details mentioned in the case scenario. These would be the details about her menstruation, a smaller than dates uterus and an open cervix. A smaller than expected uterine size could be caused by her passing out some tissue earlier or it could be due to the foetus having been dead for some time. The finding of an open cervix would be in line with the fact that she had passed out some fetal tissue or it could signify that she is experiencing an inevitable miscarriage (while all fetal tissue is still kept within her uterus).

      The likely diagnoses that should be considered for this case would be miscarriage (threatened, incomplete, complete and missed), cervical insufficiency, and ectopic pregnancy. A smaller than dates uterus and an open cervix makes threatened abortion an unlikely diagnosis. Her clinical findings could be expected in both an incomplete abortion and a complete abortion.
      In ectopic pregnancy, although there would be a smaller than dates uterus, the cervical os would usually be closed. Cervical insufficiency is probable due to an open os but the uterine size would be expected to correspond to her dates, making it also less likely than a miscarriage.

      Since she most likely has had a miscarriage (be it incomplete or complete), the next best step would be to do a per vaginal ultrasound scan which could show whether or not products of conception are still present within the uterine cavity. If present, it would be an incomplete miscarriage which would warrant a dilatation and curettage; if absent, it is a complete miscarriage so D&C would not be needed.

      In view of her open cervix and 12 weeks of amenorrhea, there is no indication for a pregnancy test nor assessment of her beta-hCG levels. Cervical ligation would only be indicated if the underlying issue was cervical incompetence, which is not in this case.

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  • Question 26 - A 27-year-old pregnant woman visits to you at 17 weeks of gestation with...

    Incorrect

    • A 27-year-old pregnant woman visits to you at 17 weeks of gestation with complaint of eruption or rash, followed by a 2-day history of malaise, low grade fever and rhinorrhea. You suspect measles and order serology tests for her.

      Serology report shows that lgM against measles is positive with a negative lgG.

      Among the following which is the most appropriate next step in management of this case?

      Your Answer: Repeat the serology in 2 weeks

      Correct Answer: Contact tracing

      Explanation:

      The given case scenario describes a typical case of measles in a pregnant woman, which is confirmed by serologic studies. Positive lgM in serology is suggestive of acute infection, while a negative lgG confirms that the infection is in early phase without any seroconversion.
      Conservative management of the symptoms and its potential complications is the only management plan therapeutically available after contracting measles. ‘Notification’ and contact tracing are the other very important issues to be considered.
      Measles is a notifiable disease and healthcare professionals are mandated on reporting all the identified cases of measles to the authorized public health units. The main objective of this notification is to conduct a contact tracing.

      MMR vaccine is not useful once measles is contracted, as the vaccine is used for prevention of measles and as prophylaxis in post-exposure cases. For those with contact to a case of measles, MMR vaccine within 72 hours of contact may have a protective effect, but all measles-containing vaccines like MMR and MM RV are contraindicated throughout pregnancy even as prophylaxis.

      As the circulating maternal antibodies will cross placenta and enters into the fetal circulation, a positive test does not confirm infection in the fetus. So serologic testing of the fetus is not useful.

      NHIG is not useful in treating an established case of measles, as it is used as a post-measles exposure prophylactic for patients such as pregnant women, premature babies, etc who are contraindicated to MMR vaccine.

      As both symptoms and lgM levels indicate measles infection, repeating measles-specific serologic test is not useful in this case. In general no test is indicated, unless its result has an impact on the further management of the case or any prognostic value.

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  • Question 27 - A 27-year-old woman who is 18 weeks pregnant presented to the emergency department...

    Correct

    • 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: 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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  • Question 28 - A 33-year-old primigravida at 33 weeks of gestation comes to the emergency department...

    Correct

    • A 33-year-old primigravida at 33 weeks of gestation comes to the emergency department complaining of having headache for the past two week. On examination her blood pressure is 148/100 and heart rate is 90/min.There is swelling over both her ankles, hands and eyes. The rest of the examination is normal. CTG tracing is reassuring and urine dipstick showed proteinuria. Which of the following is considered as the best next step in managing this patient?

      Your Answer: Observation, steroids and antihypertensives

      Explanation:

      Patient in the given case has developed clinical features of mild preeclampsia presented as hypertension, ankle and facial oedema along with proteinuria.

      As the fetal lungs are not yet matured, best management in this case would be observing the patient frequently, starting her on steroids and antihypertensive drugs like methyldopa, or labetalol. 31 to 34 weeks of gestation is the optimal gestational age for starting dexamethasone therapy which will help in controlling blood pressure, helps in the maturation of lungs and will also gives time to organise delivery when the lungs are matured.

      Immediate C-section is not required at this stage of pregnancy, however a plan for cesarean section must be made to carry it out if the patient develops eclampsia during her stay in the hospital. Immediate vaginal delivery is also not indicated as the pregnancy is far from term. Induced labour will result in fetal demise soon after birth due to the fetal lung immaturity, but immediate delivery has to be considered once the fetal lung attains maturity.

      Magnesium Sulphate is indicated only in women with severe pre-eclampsia and even in such cases primary importance is given to blood pressure controlling. Magnesium sulphate is not indicated on this case as the patient is in mild eclampsia.

      Even though Paracetamol and deep vein thrombosis prophylaxis are indicated in this case, anticoagulants should be avoided considering the emergency need for surgery.

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  • Question 29 - A 28-year-old woman presents for an antenatal visit in her first pregnancy. The...

    Correct

    • A 28-year-old woman presents for an antenatal visit in her first pregnancy. The pregnancy has been progressing normally thus far. Her routine mid-trimester ultrasound examination, performed at 18 weeks of gestation, shows that the placenta occupies the lower part of the uterus. It is noted that the placenta is reaching to within 1 cm of the internal cervical os. The patient is wondering what this means for her pregnancy and what needs to be done about it.

      Which one of the following would be the most appropriate management?

      Your Answer: Repeat the ultrasound at 34 weeks of gestation.

      Explanation:

      This patient is presenting with a low-lying placenta at 18 weeks of gestation. This is a common finding on ultrasound at 18-20 weeks. If there is not bleeding, there is an 80-90% chance that by late pregnancy, the placenta will have moved and is no longer occupying the lower uterine segment. For this reason, the repeat ultrasound examination is usually performed at 32-34 weeks of gestation. Further discussions about management can then be made after obtaining those results.

      Leaving the repeat ultrasound until term would be inappropriate as intervention would be needed prior. If the placenta praevia is still present, it is typically advisable to deliver prior to term.

      Cardiotocographic (CT) fetal heart rate monitoring is not required in the absence of bleeding or other symptoms.

      Delivery by Caesarean section would not be necessary if the placenta was no longer praevia by the time the repeat ultrasound is done.

      Repeat ultrasound examination at 22 weeks of gestation would also unnecessary and inappropriate as it is too close in time for the change to occur.

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  • Question 30 - The following measures are usually performed during a routine antenatal visit for a...

    Correct

    • The following measures are usually performed during a routine antenatal visit for a healthy uncomplicated pregnancy at 36 weeks gestation, EXCEPT:

      Your Answer: Mid-steam urine specimen (MSU) for culture & sensitivity

      Explanation:

      At the 36‑week appointment, all pregnant women should be seen again. At this appointment: measure blood pressure and test urine for proteinuria; measure and plot symphysis–fundal height; check position of baby; for women whose babies are in the breech presentation, offer external cephalic version (ECV)

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  • Question 31 - Consider you are looking after a male baby in neonatal unit. Case chart...

    Correct

    • 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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  • Question 32 - A 32-year-old G3P2 female presents to your department for prenatal check up. She...

    Incorrect

    • A 32-year-old G3P2 female presents to your department for prenatal check up. She is in the 26th week of gestation and her pregnancy has been uneventful so far. Her past medical history is unremarkable. Her second child was born macrosomic with shoulder dystocia, which was a very difficult labour.
      Which of the following is the most appropriate management of this patient?

      Your Answer: Serial ultrasound for fetal weight estimation

      Correct Answer: Watchful waiting till she goes in labour

      Explanation:

      Shoulder dystocia is a complication associated with fetal macrosomia and may result in neurological dysfunction. Fetal macrosomia is generally defined as birth weight – 4,000 g. It occurs in about 10% of pregnancies and one of the most important predictors of fetal macrosomia is previous macrosomic infant(s). The recurrence rate of fetal macrosomia is above 30%. Other risk factors are maternal diabetes, multiparity, prolonged gestation, maternal obesity, excessive weight gain, male foetus, and parental stature- Not all cases of fetal macrosomia lead to shoulder dystocia and the occurrence of this complication is only 0.5%-1% of all pregnancies.

      To make clinical decision regarding management of the patient, it is important to understand that there are other factors that lead to shoulder dystocia, such as the mother’s anatomy. While statistics suggest that there’s a tendency to choose elective Caesarean delivery for suspected macrosomia, it is believed that most of procedures are unnecessary, as evidence has shown the number of complications are not reduce- Also while it is logical to consider induction of labour at the 37th week of pregnancy, it is associated with increased Caesarean deliveries because of failed inductions. The recommended course of action is watchful waiting till the patient goes in labour.

      → Induce labour at the 37th week of gestation is not the best course of action, as it is associated with high failure rate, which often leads to Caesarean delivery.
      → Schedule elective Caesarean delivery is considered unnecessary in patients who do not have diabetes. Statistics have shown no evidence that Caesarean delivery reduces the rate of complications.
      → Serial ultrasound for fetal weight estimation is incorrect. The strategies used to predict fetal macrosomia are risk factors, Leopold’s manoeuvres, and ultrasonography. Even when they are combined, they are considered inaccurate; much less ultrasonography alone.
      → At this point, blood glucose control in pregnancies associated with diabetes seems to have desired results in preventing macrosomia- A weight loss program is usually not recommended- Instead, expectant management should be considered.

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  • Question 33 - In which one of the following circumstances, is it least likely for a...

    Incorrect

    • In which one of the following circumstances, is it least likely for a foetus to be in a transverse lie?

      Your Answer: Grand multiparity

      Correct Answer: A normal term foetus

      Explanation:

      Normal position of the foetus in relationship to the mother is always a longitudinal lie and a cephalic presentation. Transverse lie means that the baby is sideways. The foetus lies transverse till 26-28th week of gestation, after which it usually changes its position from transverse to a longitudinal lie with head down. A transverse lie can occur in conditions like grand multiparity, preterm foetus, placenta previa and pelvic contraction.

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  • Question 34 - Hysterosalpingogram (HSG) is contraindicated in the following EXCEPT: ...

    Correct

    • Hysterosalpingogram (HSG) is contraindicated in the following EXCEPT:

      Your Answer: Congenital malformations of the uterus

      Explanation:

      Anomalies of the cervico-uterus are widely diagnosed by HSG. The diagnostic value of HSG in the detection of anomalies varies, depending on the type of malformation.

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  • Question 35 - All of the following factors are associated with an unstable lie of the...

    Correct

    • All of the following factors are associated with an unstable lie of the foetus except?

      Your Answer: Cervical fibroids

      Explanation:

      Unstable lie means that the foetus is still changing its position even at 36 weeks of gestation. A number of factors are responsible for this positioning such as multi gravida, placenta previa, prematurity and fibroids present in the fundus. Cervical fibroids have little association with unstable lie of the foetus.

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  • Question 36 - A 30 year old female with a history of two first trimester miscarriages...

    Incorrect

    • A 30 year old female with a history of two first trimester miscarriages presented at 9 weeks of gestation with per vaginal bleeding. Which of the following is the most appropriate management?

      Your Answer: Trans-vaginal sonography (TVS)

      Correct Answer: Aspirin

      Explanation:

      Antiphospholipid syndrome is the most important treatable cause of recurrent miscarriage. The mechanisms by which antiphospholipid antibodies cause pregnancy morbidity include inhibition of trophoblastic function and differentiation, activation of complement pathways at the maternal–fetal interface, resulting in a local inflammatory response and, in later pregnancy, thrombosis of the uteroplacental vasculature. This patient should be offered referral to a specialist clinic as she has had recurrent miscarriages. Low dose aspirin is one of the treatment options to prevent further miscarriage for patients with antiphospholipid syndrome.

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  • Question 37 - A 25-year-old Aboriginal lady presents to antenatal clinic at 19 weeks of her...

    Correct

    • A 25-year-old Aboriginal lady presents to antenatal clinic at 19 weeks of her gestation.

      This is considered as the best time for which one of the following?

      Your Answer: Ultrasound

      Explanation:

      Between 18-20 weeks of gestation is the best time to perform an ultrasound for the identification of any physical or anatomical abnormalities including neural tube defects.

      Maternal serum screening for Down syndrome is best performed between 15-17 weeks of pregnancy and this screening includes analysis of alpha fetoprotein, estriol, and beta-HCG in maternal blood. Conducting tests on accurate dates is necessary to obtain reliable results.

      Amniocentesis which is very accurate for the diagnosis of chromosomal anomalies including Down syndrome, is best performed between 16-18 weeks of gestation and it carries a risk of 1 in 200 for miscarriage. Rh negative women will need Rh D immunoglobulin (anti-D).

      Chorionic villus sampling is best performed between 10-12 weeks of gestation and carries a 1 in 100 risk of miscarriage, this test is also very much accurate for diagnosis of chromosomal anomalies. Rh negative women need Rh D immunoglobulin (anti-D).

      It is best to perform rubella screen before conception than during pregnancy, this is because rubella vaccine is not recommended to be given to a pregnant mother as its a live vaccine.

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  • Question 38 - The major cause of the increased risk of morbidity & mortality among twin...

    Correct

    • The major cause of the increased risk of morbidity & mortality among twin gestation is:

      Your Answer: Preterm delivery

      Explanation:

      Twin pregnancy is associated with a number of obstetric complications, some of them with serious perinatal consequences, especially for the second twin. The rate of perinatal mortality can be up to six times higher in twin compared to singleton pregnancies, largely due to higher rates of preterm delivery and fetal growth restriction seen in twin pregnancies. Preterm birth and birth weight are also significant determinants of morbidity and mortality into infancy and childhood. More than 50% of twins and almost all triplets are born before 37 weeks of gestation and about 15–20% of admissions to neonatal units are associated with preterm twins and triplets.

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  • Question 39 - A 30-year-old woman in her 36 weeks of gestation, presents for her planned...

    Correct

    • 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.

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  • Question 40 - A 33-year-old woman is under your care during her pregnancy.

    She has had only...

    Correct

    • A 33-year-old woman is under your care during her pregnancy.

      She has had only one previous pregnancy in which her foetus had spina bifida.

      Identify the most appropriate assessment, from the following choices, that would aid in detection of spina bifida in her current pregnancy.

      Your Answer: Ultrasound of the fetal spine at 16-18 weeks of gestation.

      Explanation:

      An ultrasound of the foetal spine at 16-18 weeks of gestation is the most appropriate assessment (correct answer).

      Ultrasound performed at 11-12 weeks of gestation can diagnose anencephaly, another neural tube defect, however; any vertebral column defect is unlikely to be detected.

      In most cases of neural tube defects in the foetus, elevations will be noted in maternal alpha-fetoprotein levels at 12 to 15 weeks. However, it may not be possible to detect all such abnormalities and a confirmed diagnosis cannot be made.

      Additionally, elevations in alpha-fetoprotein levels do not always correlate to the presence of foetal neural tube defects.

      Nuchal translucency scans do not detect neural tube defects. They are performed to identify the risk of chromosomal abnormalities in the foetus.

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  • Question 41 - Fetal distress commonly occurs when the head is in the occipito-posterior (OP) position...

    Incorrect

    • Fetal distress commonly occurs when the head is in the occipito-posterior (OP) position during labour. Which of the following statements is the most probable explanation for this?

      Your Answer: Obstructed labour.

      Correct Answer: Incoordinate uterine action.

      Explanation:

      Incoordinate uterine action almost always results in fetal distress due to increased resting intrauterine pressure. All other statements can also cause fetal distress, however, these are not as common as incoordinate uterine action. Syntocin infusion for labour augmentation and administration of epidural anaesthetic for pain relief can also increase the risk of fetal distress.
      Cardiotocograph (CTG) monitoring during labour is highly recommended in patients where the fetal head is found in the OP position. Moreover, it is mandatory when there is Syntocin infusion or epidural anaesthesia.

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  • Question 42 - Among the following which is the most likely finding of placental abruption in...

    Correct

    • Among the following which is the most likely finding of placental abruption in a pregnant woman?

      Your Answer: Vaginal bleeding

      Explanation:

      Placental abruption is defined as the premature separation of placenta from uterus and the condition usually presents with bleeding, uterine contractions and fetal distress. It is one of the most significant cause of third-trimester bleeding and is often associated with fetal and maternal mortality and morbidity. In all pregnant women with vaginal bleeding in the second half of the pregnancy, this condition should be considered as a differential diagnoses.
      Though vaginal bleeding is the most common presenting symptom reported by almost 80% of women with placental abruption, vaginal bleeding is concealed in 20% of women with placental abruption, therefore, absence of vaginal bleeding does not exclude placental abruption.

      Symptoms and complications of placental abruption varies according to patient, frequency of appearance of some common features is as follows:
      ‌- Vaginal bleeding is the common presentation in 80% of patients.
      ‌- Abdominal or lower back pain with uterine tenderness is found in 70%
      ‌- Fetal distress is seen in 60% of women.
      ‌- Abnormal uterine contractions like hypertonic, high frequency contractions are seen in 35% cases.
      ‌- Idiopathic premature labor in 25% of patients.
      ‌- Fetal death in about 15% of cases.

      Examination findings include vaginal bleeding, uterine contractions with or without tenderness, shock, absence of fetal heart sounds and increased fundal height due to an expanding hematoma. Shock is seen in class 3 placental abruption which represents almost 24% of all cases of placental abruption.

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  • Question 43 - Which one of the following methods helps determine the fetal position and presentation?...

    Correct

    • Which one of the following methods helps determine the fetal position and presentation?

      Your Answer: Leopold's manoeuvre

      Explanation:

      Fetal position and presentation is best evaluated by Leopold’s manoeuvre. It will determine which part of the foetus is in the uterine fundus.
      Cullen’s sign is found in ruptured ectopic pregnancy characterised by bruising and oedema of the periumbilical region.
      Mauriceau-Smelli-Veit manoeuvre is done during a breech delivery.

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  • Question 44 - A 26-year-old female G2P1 is in labour at the 38th week of gestation....

    Correct

    • A 26-year-old female G2P1 is in labour at the 38th week of gestation. Her membranes ruptured about 8 hours ago. At the moment, she is having contractions lasting 60 seconds every 4 minutes and is 8 cm dilated. The fetal heart tone baseline is currently 80/min with absent variability. The pregnancy was uneventful and she had regular prenatal check-ups.
      Which of the following is the most appropriate next step in management?

      Your Answer: Maternal position change and oxygen

      Explanation:

      This patient is towards the end of the first stage of labour and is having complications. Labour is divided into 3 stages. The first stage begins at regular uterine contractions and ends with complete cervical dilatation at 10 cm. It has a latent phase and an active phase- The active phase is usually considered to have begun when cervical dilatation reaches 4 cm. So this patient is in the active phase of the first stag- The second stage begins with complete cervical dilatation and ends with the delivery of the foetus. The third stage of labour is the period between the delivery of the foetus and the delivery of the placenta and fetal membranes.

      This patient’s contractions seem adequate and yet the fetal heart tone with baseline 80/min and absent variability suggests fetal distress. This is category III of the fetal heart rate pattern because the baseline rate is < 110/min with absent variability. It is usually predictive of abnormal acid-base status. The recommended actions are maternal position change and oxygen administration, discontinuation of labour stimulus such as oxytocin, treatment of possible underlying conditions, and expedited delivery.
      → Magnesium sulphate infusion is mainly used to prevent eclamptic seizures and despite no evidence of its effectiveness as a tocolytic agent, it is used sometimes to reduce risks of preterm birth.
      → Fetal scalp pH monitoring would help determine if there is indeed an acidosis and should be done before deciding whether a Caesarean section is necessary, but maternal position change and oxygen administration should be done first.
      → Ultrasonography may be used for preinduction cervical length measurement or if the active stage has already started- It is considered more accurate than digital pelvic exam in the assessment of fetal descent; however, at this point maternal position change and oxygen administration should be done first.
      → Immediate Caesarean section would be done if fetal scalp pH monitoring revealed a pH < 7.20. At this point, the best next step is maternal position change and oxygen administration.

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  • Question 45 - A 27-year-old woman at her 37 weeks of gestation is diagnosed with primary...

    Correct

    • A 27-year-old woman at her 37 weeks of gestation is diagnosed with primary genital herpetic lesions at multiple sites in the genital area.

      What is the most appropriate management in this case?

      Your Answer: Prophylactic antiviral before 4 days before delivery

      Explanation:

      This woman at her 37 weeks of gestation, has developed multiple herpetic lesions over her genitals. In every case were the mother develops herpes simplex infection after 28 weeks of pregnancy, chances for intrapartum and vertical transmission of the infection to the neonate is considered to be very high.

      Risk factors of intrapartum herpes simplex infection of the child includes premature labour, premature rupture of membrane, primary herpes simplex infection and multiple lesion in the genital area.

      The most appropriate methods for managing this case includes:
      – checking for herpes simplex infection using PCR testing of a cervical swab.
      – starting prophylactic antiviral therapy for the mother from 38 weeks of gestation until delivery.
      – preferring a cesarean section delivery if there are active lesions present in the cervix and/or vulva.

      Cesarean delivery is advised in this case along with maternal antiviral therapy before delivery to minimise the risk of vertical transmission.

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  • Question 46 - A 35-year-old lady with a 4-year history of hypertension is planning to conceive....

    Correct

    • A 35-year-old lady with a 4-year history of hypertension is planning to conceive. She has never been pregnant before and has stopped using contraception recently. She has a past medical history of asthma and the only medication she is on is ramipril 10 mg daily.

      On examination her blood pressure is found to be 130/85 mm/Hg.

      From the following which is the most appropriate initial management of her hypertension?

      Your Answer: Cease ramipril and start methyldopa

      Explanation:

      In the given case pre-pregnancy counselling and management of chronic hypertension is very much essential.
      Some commonly prescribed antihypertensive drugs like ACE inhibitors, angiotensin receptor antagonists, diuretics and most beta blockers are contraindicated or is best to be avoided before conception and during pregnancy.
      Methyldopa is considered as the first line drug for the management of mild to moderate hypertension in pregnancy and is the most commonly prescribed antihypertensive for this indication.
      Hydralazine can be used during any hypertensive emergencies in pregnancy.
      Intake of Angiotensin receptor blockers and ACE inhibitors during the first trimester can lead to complications as they are both teratogenic; use of these drugs during second and third trimesters can result in foetal renal dysfunction, oligohydramnios and skull hypoplasia.
      Diuretics can cause foetal electrolyte disturbances and significant reduction in maternal blood volume.
      All beta blockers, except labetalol, can result in foetal bradycardia, and growth restriction in case its long-term use.
      Calcium channel antagonists, except nifedipine, are avoided during pregnancy due to its high risk for maternal hypotension and foetal hypoxia.

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      • Obstetrics
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  • Question 47 - A 6-year-old girl is brought to the emergency department for evaluation of vaginal...

    Correct

    • A 6-year-old girl is brought to the emergency department for evaluation of vaginal discharge.  She has had malodorous vaginal discharge and small amounts of vaginal bleeding for about a week. Her mother called the patient’s primary care provider and instructed to stop giving bubble baths to the child, however, the symptoms have not improved. Aside from the discharge, the girl is normal, she was toilet trained at age 2 and has had no episodes of incontinence.  She started kindergarten a month ago. Mother informed that patient has no fever, abdominal pain, or dysuria. 

      On examination, the labia appear normal but a purulent, malodorous vaginal discharge is noted.  Visual inspection with the child in knee-chest position shows a whitish foreign body inside the vaginal introitus. 

      Which among the following is the best next step in management of this patient?

      Your Answer: Irrigate with warmed fluid after local anesthetic application

      Explanation:

      Vaginal spotting, malodorous vaginal discharge and no signs of trauma like lacerations are the clinical features of vaginal foreign bodies in prepubertal girls. The most common object found as foreign body is toilet paper and its management includes warm irrigation and vaginoscopy under sedation/anesthesia.

      Common cause of vulvovaginitis in prepubertal girls are vaginal foreign bodies. Although other objects like small toys, hair bands, etc can be occasionally found, the most common vaginal foreign body is toilet paper. Symptoms like malodorous vaginal discharge, intermittent vaginal bleeding or spotting and urinary symptoms like dysuria are caused due to the chronic irritation caused by the foreign body (the whitish foreign body in this case) on the vaginal tissue.

      An external pelvic examination is performed with the girl in a knee-chest or frog-leg position in cases of suspected vaginal foreign body. An attempt at removal, after application of a topical anesthetic in the vaginal introitus, using vaginal irrigation with warm fluid or a swab can be done in case of an easily visualized small foreign body like toilet paper. In cases were the age of the girl or the type of foreign body prohibit adequate clinical evaluation the patient should be sedated or given a general anesthesia for examination using a vaginoscope and the foreign body should be removed.

      In cases where child abuse or neglect is suspected Child Protective Services should be contacted. Vaginal or rectal foreign bodies can be the initial presentation of sexual abuse; however in otherwise asymptomatic girls with no behavioral changes, urinary symptoms and vulvar or anal trauma, presence of toilet paper is not of an immediately concerning for abuse.

      To evaluate pelvic or ovarian masses CT scan of the abdomen and pelvis can be used; but it is not indicated in evaluation of a vaginal foreign body.

      Patients in there prepubertal age have a narrow vaginal introitus and sensitive hymenal tissue due to low estrogen levels, so speculum examinations should not be performed in such patients as it can result in significant discomfort and trauma.

      Topical estrogen can be used in the treatment of urethral prolapse, which is a cause of vaginal bleeding in prepubertal girls. This diagnosis is unlikely in this case as those with urethral prolapse will present with a beefy red protrusion at the urethra and not a material in the vagina.

      Prepubertal girls with retained toilet paper as a vaginal foreign body will present with symptoms like malodorous vaginal discharge and vaginal spotting secondary to irritation. Initial management is topical anaesthetic application and removal of foreign body either by vaginal irrigation with warm fluid or removal with a swab.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 48 - A 32-year-old woman came to your clinic in a small rural town of...

    Correct

    • A 32-year-old woman came to your clinic in a small rural town of New South Wales. She is 34 weeks pregnant and all her past 3 pregnancy has been uncomplicated.

      On examination her blood pressure is 140/95 mm of Hg today which is higher than her usual blood pressure of 110/70 mmHg. Urinalysis shows protein 2+ and the patient feels well generally.

      Among the following, which is the most appropriate next step in management of this patient?

      Your Answer: Send her to the local hospital for urgent review

      Explanation:

      This patient has developed clinical features like hypertension and proteinuria consistent with Pre-eclampsia. So the patient should be sent to an obstetrician for urgent review, it is not appropriate in such cases to postpone urgent specialist reviews as it could lead to serious complications.

      Labetalol though is safe in pregnancy and is considered as an option to treat hypertension, it could be given in the emergency department.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 49 - The relation of different fetal parts to each other determines? ...

    Correct

    • The relation of different fetal parts to each other determines?

      Your Answer: Attitude of the foetus

      Explanation:

      Fetal attitude is defined as the relation of the various parts of the foetus to each other. In the normal attitude, the foetus is in universal flexion. The anatomic explanation for this posture is that it enables the foetus to occupy the least amount of space in the intrauterine cavity. The fetal attitude is extremely difficult, if not impossible, to assess without the help of an ultrasound examination.

      Fetal lie refers to the relationship between the long axis of the foetus relative to the long axis of the mother. If the foetus and maternal column are parallel (on the same long axis), the lie is termed vertical or longitudinal lie.

      Fetal presentation means, the part of the foetus which is overlying the maternal pelvic inlet.

      Position is the positioning of the body of a prenatal foetus in the uterus. It will change as the foetus develops. This is a description of the relation of the presenting part of the foetus to the maternal pelvis. In the case of a longitudinal lie with a vertex presentation, the occiput of the fetal calvarium is the landmark used to describe the position. When the occiput is facing the maternal pubic symphysis, the position is termed direct occiput anterior.

    • This question is part of the following fields:

      • Obstetrics
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  • Question 50 - A 35-year-old woman, gravida 2 para 1, at 14 weeks of gestation comes...

    Correct

    • 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: 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
      – Nulliparity

      Preeclampsia 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.

    • This question is part of the following fields:

      • Obstetrics
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SESSION STATS - PERFORMANCE PER SPECIALTY

Obstetrics (35/50) 70%
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