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Question 1
Incorrect
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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: Caesarean section at term.
Correct 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 2
Incorrect
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All of the following statements are considered correct regarding Down syndrome screening in a 40-year-old pregnant woman, except:
Your Answer: Dating ultrasound along with second trimester serum screening test has detection rate of 75 percent
Correct Answer: Dating ultrasound along with second trimester serum screening test has detection rate of 97 percent
Explanation:Second-trimester ultrasound markers have low sensitivity and specificity for detecting Down syndrome, especially in a low-risk population.
The highest detection rate is acquired with ultrasound markers combined with gross anomalies. Although the detection rate with this combination of markers is high in a high-risk population (50 to 75 percent), false-positive rates are also high (22 percent for a 100 percent Down syndrome detection rate).
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This question is part of the following fields:
- Obstetrics
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Question 3
Incorrect
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Regarding ovarian cancer, which factors are thought to lower the risk?
Your Answer: Older age at menarche
Correct Answer: Taking statins
Explanation:Ovarian cancer is a gynaecological cancer that commonly affects women over 40 years. Risk factors for ovarian cancer include: infertility, a family history of ovarian, breast or colorectal cancer. There are some protective factors, which include: high parity and breastfeeding, early age at menarche and late age at menopause, and combined oral contraceptives, and statins.
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This question is part of the following fields:
- Epidemiology
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Question 4
Correct
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A 22-year-old G2P2 who is on her 7th day postpartum called her physician due to her concern of bleeding from the vagina. Upon interview, she described the bleeding to be light pink to bright red and compared with the first few days post-delivery, the bleeding was less heavy. There was also no fever or cramping pain reported by the patient.
Upon examination, it was observed that she is afebrile and her uterus is appropriately sized and non-tender. There was also the presence of about 10cc old, dark blood in her vagina and her cervix was closed.
Which of the following is considered the most appropriate treatment for the patient?Your Answer: Reassurance
Explanation:The postpartum period begins soon after the baby’s delivery and usually lasts six to eight weeks and ends when the mother’s body has nearly returned to its pre-pregnant state.
Bloody vaginal discharge (lochia rubra) is heavy for the first 3-4 days, and slowly it becomes watery in consistency and colour changes to pinkish-brown (lochia serosa). After the next 10-12 days, it changes to yellowish-white (lochia alba). Advise women to seek medical attention if heavy vaginal bleeding persists (soaking a pad or more in less than an hour). Women with heavy, persistent postpartum bleeding should be evaluated for complications such as retained placenta, uterine atony, rarely invasive placenta, or coagulation disorders. Endometritis may also occur, presenting as fever with no source, maybe accompanied by uterine tenderness and vaginal discharge. This usually requires intravenous antibiotics. This also should be explained and advise the mother to seek immediate medical attention.
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This question is part of the following fields:
- Obstetrics
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Question 5
Incorrect
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You review a 28 year old patient in the fertility clinic. She has a diagnosis of PCOS. She has been trying to conceive for 2 years. Her BMI is 26 kg/m2. She is a non-smoker. She has been taking Clomiphene and metformin for the past 6 months. What is the next most appropriate treatment?
Your Answer: Continue current treatment for further 6 months
Correct Answer: Gonadotrophins
Explanation:Clomiphene shouldn’t be continued for more than 6 months. The second line options are Gonadotrophins or ovarian drilling.
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This question is part of the following fields:
- Clinical Management
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Question 6
Correct
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Question 7
Correct
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An 8 week pregnant female presents to the ob-gyn with bleeding from the vagina for the last two days. Bimanual examination reveals the uterus to be 8 weeks in size. On speculum examination, the cervical os is closed. How would the fetal viability be confirmed?
Your Answer: Transvaginal ultrasound
Explanation:Indication for a transvaginal ultrasound during pregnancy include:
– to monitor the heartbeat of the foetus
– look at the cervix for any changes that could lead to complications such as miscarriage or premature delivery
– examine the placenta for abnormalities
– identify the source of any abnormal bleeding
– diagnose a possible miscarriage
– confirm an early pregnancyThis is an ultrasound examination that is usually carried out vaginally at 6-10 weeks of pregnancy.
The aims of this scan are to determine the number of embryos present and whether the pregnancy is progressing normally inside the uterus.
This scan is useful for women who are experiencing pain or bleeding in the pregnancy and those who have had previous miscarriages or ectopic pregnancies.
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This question is part of the following fields:
- Obstetrics
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Question 8
Incorrect
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You are discussing a planned Caesarean Section (CS) with a patient. Which of the following risks is reduced with CS?
Your Answer: Cardiac arrest
Correct Answer: Early postpartum haemorrhage
Explanation:There are many different reasons for performing a delivery by Caesarean section. The four major indications accounting for greater than 70 per cent of operations are: 1. previous Caesarean section 2. dystocia 3. malpresentation 4. suspected acute fetal compromise. Other indications, such as multifetal pregnancy, abruptio placenta, placenta praevia, fetal disease and maternal disease are less common. The chances of early postpartum haemorrhage are greatly reduced in C-section deliveries.
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This question is part of the following fields:
- Clinical Management
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Question 9
Incorrect
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A 40-year-old woman arrives at the hospital at eight weeks of her first pregnancy, anxious that her kid may have Down syndrome. Which of the following best reflects the risk of spontaneous abortion after an amniocentesis performed at 16 weeks?
Your Answer: 8%
Correct Answer: 18%
Explanation:This question assesses critical clinical knowledge, as this information must be presented to a patient prior to an amniocentesis to ensure that she has given her informed permission for the treatment.
Amniocentesis is most typically used for genetic counselling in the second trimester of pregnancy. Another option is to do a chorion-villus biopsy (CVB) between 10 and 11 weeks of pregnancy.
The chances of miscarriage after both operations are roughly 1 in 200 for amniocentesis and 1 in 100 for CVB, according to most experts.
The significance of this question is that professionals must be able to weigh the procedure’s danger against the risk of the sickness they are trying to identify. -
This question is part of the following fields:
- Obstetrics
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Question 10
Correct
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Which of the following is the most likely anaesthetic or analgesic causing reduced variability on cardiotocograph?
Your Answer: Intramuscular pethidine
Explanation:Opiates and spinal anaesthetics reduce the variability of a CTG. Including some antihypertensives like labetalol and alpha methyl dopa.
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This question is part of the following fields:
- Obstetrics
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