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Question 1
Correct
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A 37-year-old primigravid woman is admitted to labor unit at 39 weeks of gestation, due to regular uterine contractions. Her cervix is 8 cm dilated and 100% effaced, with the fetus’ vertex at +1 station. Initially the fetal heart rate was 150 bpm, as the labor progressed, it falls to 80 bpm without any changes in the mother’s general condition. Which among the following options would be the best next step in management of this case?
Your Answer: Cardiotocography
Explanation:Bradycardia of <100 bpm for more than 5 minutes or <80 for more than 3 minutes is always considered abnormal. The given case describes fetal bradycardia detected on fetal heart auscultation and the most common causes for severe bradycardia are prolonged cord compression, cord prolapse, epidural and spinal anesthesia, maternal seizures and rapid fetal descent. Immediate management including identification of any reversible causes for the abnormality and initiation of appropriate actions like maternal repositioning, correction of maternal hypotension, rehydration with intravenous fluid, cessation of oxytocin, tocolysis for excessive uterine activity, and initiation or maintenance of continuous CTG should be considered in clinical situations where abnormal fetal heart rate patterns are noticed. Consideration of further fetal evaluation and delivery if a significant abnormality persists are very important. The next step in this scenario where the baby is in 1+ station, with an abnormal fetal heart rate detected on auscultation would be to perform a confirmatory cardiotocography (CTG) and if the CTG findings confirm the condition despite initial measures obtained, prompt action should be taken. Cord compression or prolapse should come on the top of the differential diagnoses list as the the mother shows normal general conditions, but since the cervix is 8 cm dilated, 100% effaced and the fetal head is already engaged, cord prolapse would be unlikely; therefore, repeating vaginal exam is not as important as confirmatory CTG. However a vaginal exam should be done, if the scenario indicates any possibility of cord prolapse, to exclude cord compression or prolapse. NOTE– In cases of severe prolonged bradycardia, immediate delivery is recommended, if the cause cannot be identified and corrected.
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This question is part of the following fields:
- Obstetrics
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Question 2
Incorrect
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A 27-year-old female G1P1 presents with her husband because she has not been breastfeeding her baby 24 hours though she had previously stated she intended exclusive breastfeeding for the first 3 months. She feels sad most of the time and her mood has been very low for the past 2 weeks, she has trouble sleeping at night and feels tired all day. She complains that her husband doesn’t seem to know how to help. For the past 24 hours she feels like she is not fit to be a mother and doesn’t want to feed the baby anymore. She has been frightened by thoughts to harm herself and the baby. Her baby is 7 weeks old. In addition to antidepressant medication, which of the following treatment is most appropriate for this patient?
Your Answer: Cognitive behavioural therapy
Correct Answer: Electroconvulsive therapy
Explanation:This patient presents because of significant mood changes since she gave birth to her child: she is sad most of times and she is having guilt feelings about her adequacy for motherhood- She is also complaining of insomnia, tiredness, and even some suicidal ideation. These symptoms are highly suggestive postpartum depression. This should be differentiated from postpartum blues, which usually present within the first 2 weeks and last for few days. This patient’s symptoms started 5 weeks postpartum. Postpartum depression usually presents within the first 6 weeks to the first year postpartum.
Postpartum depression is the most common complication of childbearing and affects the mother, the child, and relationship with the partner. It is diagnosed the same way as major depressive disorder in other patients. Since untreated postpartum depression can have long-term effects on the mother and the child, appropriate therapy should be undertaken as soon as possible- Antidepressant medications such as sertraline can be used to treat postpartum depression. In a patient who has suicidal ideation, electroconvulsive therapy has a more rapid and effective action than medication and should be considered in these patients.
→ Cognitive behavioural therapy is effective in women with mild to moderate postpartum depression; it would not be a good choice in this patient with suicidal ideation and at risk of harming the baby.
→ Estrogen therapy used alone or in combination with antidepressant, has been shown to significantly reduce the symptoms of postpartum depression; however, it would not be the most appropriate choice in a patient with suicidal ideation.
→ Peer support has shown equivocal results in various studies even though most postpartum patients report that lacking an intimate friend or confidant or facing social isolation are factors leading to depression.
→ Non-directive counselling also known as ”listening visits“ has been found to be effective in postpartum patients, though the studies that were conducted are deemed to be of small sample and larger studies still need to be done to validate these findings. It would not be an appropriate choice for this patient with suicidal ideation. -
This question is part of the following fields:
- Obstetrics
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Question 3
Correct
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A 29-year-old primigravida presented with vaginal bleeding at 16 weeks of gestation. She is Rh-negative, and her baby is Rh-positive. Speculum examination shows a dilated cervix with visible products of conception. Pelvic ultrasound confirmed the diagnosis of spontaneous abortion. In this case, what will you do regarding Anti-D administration?
Your Answer: Give anti-D now
Explanation:As the mother is found to be rhesus negative while her baby being rhesus positive, the given case is clinically diagnosed as spontaneous abortion due to Rh incompatibility. The mother should be administered anti-D for prophylaxis for avoiding future complications.
Rhesus (Rh) negative women who deliver a Rh-positive baby or who comes in contact with Rh positive red blood cells are at high risk for developing anti-Rh antibodies. The Rh positive fetuses
eonates of such mothers are at high risk of developing hemolytic disease of the fetus and newborn, which can be lethal or associated with serious morbidity.
In such situations both spontaneous and threatened abortion after 12 weeks of gestation, are indications to use anti-D in such situations.All the other options are incorrect.
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This question is part of the following fields:
- Obstetrics
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Question 4
Correct
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A 21-year-old woman, 9 weeks of gestation, has been admitted due to intractable vomiting with concurrent ketonuria. Past medical is unremarkable except for an appendectomy at the age of 12 years. Which of the following is the next best step in this investigation?
Your Answer: Serum electrolytes, urea and creatinine.
Explanation:The finding of ketonuria in this patient indicates profound dehydration and electrolyte loss. Immediate investigation with baseline serum electrolytes, urea, and creatinine is recommended for aid In intravenous resuscitation and rehydration.
All other assessments listed are appropriate, however, baseline electrolyte concentration is important before initiating intravenous resuscitation.
Other causes that can lead to vomiting in early pregnancy include normal pregnancy, multiple pregnancies, molar pregnancies, or urinary tract infection. Urine culture is necessary to exclude urinary tract infection, pelvic ultrasound to confirm singleton or multiple pregnancy and rule out a molar pregnancy.
An erect abdominal Xray may help to rule out an organic intestinal obstruction in this patient. Her history of an appendectomy predisposes this patient to adhesions leading to small bowel obstruction. However, it is not the immediate assessment in this case.
Before the advent of ultrasound, a quantitative hCG analysis was indicated to assess the presence of molar pregnancy. However, ultrasound is now preferred to confirm this diagnosis.
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This question is part of the following fields:
- Obstetrics
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Question 5
Incorrect
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A 24-year-old woman comes to your office at 38 weeks of gestation with a urinary dipstick result positive for leukocyte and nitrite. She is otherwise asymptomatic so you send her urine for culture and sensitivity test. From the options below mentioned, which is the next best management for her?
Your Answer: Prescribe her with Oral Nitrofurantoin
Correct Answer: Prescribe her with Oral Cephalexin
Explanation:There is an association between 20 to 30% increase in the risk for developing pyelonephritis during later pregnancy and untreated cases of bacteriuria in pregnancy. This is due to the physiological changes occurring to urinary tract during pregnancy, it is also found that untreated bacteriuria can be associated with even preterm birth and low birth weight. Risk of symptomatic urinary tract infection (UTI) during pregnancy can be reduced by antibiotic treatment of asymptomatic bacteriuria
The most common pathogen associated with asymptomatic bacteriuria is Escherichia coli, which accounts to more than 80% of isolates and the second most frequently cultured uropathogen is Staphylococcus saprophyticus. Other Gram-positive cocci, like group B streptococci, are less common. Gram-negative bacteria such as Klebsiella, Proteus or other Enterobacteriaceae are the other organisms involved in asymptomatic bacteriuria.
Although the context patient is asymptomatic, her urine dipstick shows positive nitrite and leukocyte, suggestive of urinary tract infection, so oral antibiotics like cephalexin or nitrofurantoin are advisable. Normally a five day course of oral antibiotic will be sufficient for the treatment of uncomplicated UTI or asymptomatic bacteraemia in pregnant women. As the patient is currently at her 38 weeks of gestation nitrofurantoin is contraindicated so it is best to prescribe her with Oral Cephalexin. This is because nitrofurantoin is associated with an increased risk of neonatal jaundice and haemolytic anaemia, so should not be used close to delivery, that is after 37 weeks of gestation or sooner if early delivery is planned.
Acute pyelonephritis should be treated with Intravenous antibiotic treatment, guided by urine culture and sensitivity reports as soon a available. A course of minimum of 10-14 days with IV + oral antibiotics is recommended as treatment for pyelonephritis, along with an increased fluid intake as intravenous fluids in clinically dehydrated patients. Even though urinary alkalisers are safe in pregnancy, prescription of urinary alkalisers alone is not recommended due to its low effectiveness compared to antibiotics, also as it can result in a loss of treatment efficacy urinary alkalisers should never be used in combination with nitrofurantoin.
At any stage of pregnancy, if Streptococcus agalactiae, a group B streptococcus [GBS], is detected in urine the intrapartum prophylaxis for GBS is usually indicated.
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This question is part of the following fields:
- Obstetrics
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Question 6
Correct
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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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This question is part of the following fields:
- Obstetrics
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Question 7
Incorrect
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A 35 year old lady presented in her 3rd trimester with severe features of pre-eclampsia. The drug of choice to prevent the patient going into impending eclampsia would be?
Your Answer: Intravenous magnesium sulphate
Correct Answer:
Explanation:The drug of choice for eclampsia and pre-eclampsia is magnesium sulphate. It is given as a loading dose of 4g i/v over 5 minutes, followed by an infusion for the next 24 hours at the rate of 1g/hr. If the seizures are not controlled, an additional dose of MgSO4 2-4gm i/v can be given over five minutes. Patients with eclampsia or pre-eclampsia can develop any of the following symptoms: persistent headache, visual abnormalities like photophobia, blurring of vison or temporary blindness, epigastric pain, dyspnoea and altered mental status.
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This question is part of the following fields:
- Obstetrics
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Question 8
Incorrect
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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: Antihypertensives and prophylactic MgSO4
Correct 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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This question is part of the following fields:
- Obstetrics
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Question 9
Correct
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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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This question is part of the following fields:
- Obstetrics
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Question 10
Incorrect
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A 27-year-old woman, at 27 weeks of gestation, who lives 40 kilometres from the nearest tertiary obstetric hospital, is referred due to premature rupture of membranes (PROM) which occurred 2 days ago. This is her first pregnancy, which had been progressing normally until the rupture of membranes. Over the last 48 hours, she did not have any contractions. Transfer was made to the tertiary referral obstetric hospital where she was started on glucocorticoid therapy. Cervical swabs were taken and she underwent ultrasound and cardiotocography assessments. She was also started on prophylactic antibiotics. Cervical swabs only showed growth of normal vaginal flora whereas the abdominal ultrasound found almost no liquor. CTG was normal and reactive. Which is the most appropriate next step in her management?
Your Answer: Prophylactic antibiotic therapy should be continued until delivery occurs.
Correct Answer: The white cell count (WCC) and C-reactive protein (CRP) levels should be assessed every 2-3 days.
Explanation:If a patient presents with PROM at 27 weeks of gestation, her management plan would have to include:
1) Cervical swabs to rule out infection
2) Commencement of prophylactic antibiotics such as erythromycin until results from the swabs are available
-If only normal vaginal flora are seen, prophylactic antibiotics can be stopped.
3) Administration of glucocorticoid- usually for 48 hours to promote maturity of the fetal lung and lower the chance of intracranial bleeding if the foetus has to be delivered prematurely
4) Transfer to a healthcare centre that has neonatal intensive care facilities to ensure if intensive care is needed post-delivery, the healthcare staff are prepared
5) Blood profile (particularly white cell count) and inflammatory markers (CRP) to look for any signs of chorioamnionitis
6) CTG assessment every 2-3 days. Abnormalities found on the CTG tracing are often the first evidence of problems such as a subclinical chorioamnionitis
7) Tocolysis with tocolytics such as IV salbutamol or nifedipine if contractions start before the course of glucocorticoid therapy is finished. Post-glucocorticoid therapy, tocolysis would not be often employed since there is a risk of masking contractions that occur due to an infection. In those cases, it is better to deliver the baby rather than to prolong the pregnancy. If there is no infection, the management plan should aim to prolong the pregnancy and delay delivery of a very premature baby. -
This question is part of the following fields:
- Obstetrics
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Question 11
Correct
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A 30-year-old pregnant woman, at her 29th week of gestation, presents to physician with flu-like symptoms for the past 3 days along with runny nose, mild headache and she feels achy. She also has mild fever and diffuse rash all over her body. She is concerned about the health of her baby and wants to know if there are any safe medications which will make her feel better in a short time. She has received tetanus vaccination as part of antenatal care program since she immigrated at the end of her first trimester from Romania. Patient is otherwise healthy. Considering the symptoms and travel history of this patient, she is at higher risk of giving birth to a newborn with which of the following options?
Your Answer: Wide pulse pressure
Explanation:This pregnant woman likely has an infection with the rubella virus, which increases the risk of congenital rubella syndrome in her newborn. congenital heart diseases, particularly patent ductus arteriosus (PDA) is a part of this syndrome. Persistence of a patent vessel between the left pulmonary artery and aorta which is supposed to closes in the first 18 hours functionally and in the first 2–3 days of life anatomically is called as PDA.
Normally there is right to left shunting in utero, but in case of PDA blood is shunted from the left (aorta) to the right (pulmonary artery) due to the decrease in pulmonary vascular resistance after birth. This causes right ventricular hypertrophy, if left untreated it can lead to left ventricular hypertrophy and heart failure. There will be a continuous machine-like murmur, heard over the left upper sternal border, as the blood is shunted throughout cardiac cycle. Diastolic BP becomes lower than normal, leading to a higher pulse pressure which is felt as a bounding pulse due to the lost volume from aorta. Though PDA is a non-cyanotic condition, it may lead to Eisenmenger’s syndrome in which R to L shunting persists, resulting in cyanosis, clubbing and polycythemia. Treatment with nonsteroidal anti-inflammatory drugs like indomethacin can close patent PDA. Other symptoms in infants born with rubella syndrome are microcephaly and cataract.
The characteristic feature of an atrial septal defect or ASD, which is a congenital heart disease presenting as an opening in the septa between right and left atria, is a single fixed S2. There will be a delay in closure of the pulmonic valve, due to the excess amount of blood diverted to the right side.
Brachial-femoral delay is a finding in coarctation of aorta, which presents as hypertension in the upper extremities and hypotension in the lower extremities.
A double split S2 is a physiological finding caused by the closure of pulmonary and aortic valves on inspiration.
PDA and pulmonary artery stenosis are the most common cardiac defects reported along with congenital rubella syndrome (CRS), whereas tricuspid valve regurgitation is never reported along with it.
Learning objective: is associated with a continuous machine-like murmur heard over the left upper sternal border, bounding pulse and an increased pulse pressure are the usual symptoms associated with patent ductus arteriosus (PDA), which is mostly seen along with congenital rubella syndrome.
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This question is part of the following fields:
- Obstetrics
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Question 12
Incorrect
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A 29 year old female who is 32 weeks pregnant, has been admitted to hospital with very severe hypertension. This is her second pregnancy. In the United Kingdom, what is the first line of treatment for hypertension whilst pregnant?
Your Answer: Methyldopa
Correct Answer:
Explanation:Atenolol is considered teratogenic and has two main risks: fetal bradycardia and neonatal apnoea. ACE inhibitors and angiotensin II receptor blockers are also known to be teratogenic (even though large-scale studies are difficult to conduct during pregnancies).
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This question is part of the following fields:
- Obstetrics
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Question 13
Correct
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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: 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.
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This question is part of the following fields:
- Obstetrics
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Question 14
Incorrect
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A 29-year-old woman presents to the emergency department of your hospital complaining of fever, she had given birth to a healthy male baby four days ago. During vaginal delivery, she sustained small vaginal laceration, suture repair was not done as the lesion were small. Presently she is breastfeeding her baby. Physical examination shows no uterine tenderness and the rest of the examinations were unremarkable. Which of the following can be the most likely cause of this Patient's fever?
Your Answer: Breast engorgement
Correct Answer: Infection of the unrepaired vaginal laceration
Explanation:As the time of onset of fever is the 4th day of postpartum and absence of uterine tenderness on exam makes infection of vaginal laceration the most likely cause of this presentation.
Exquisite uterine tenderness will be experienced in case of endometritis and symptoms are expected to start much earlier like by 2-3 days of postpartum.
UTI is often expected on days one or two of postpartum, also there are no urinary symptoms suggestive of UTI
Breast engorgement usually develops by 7th -2st day of postpartum and in the given case it’s too soon for it to occur.
As it is expected during the first 2 hours postpartum, Atelectasis is unlikely to be the cause of symptoms in the given case.
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This question is part of the following fields:
- Obstetrics
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Question 15
Correct
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A 30-year-old woman at her 18th week of pregnancy has been diagnosed with deep vein thrombosis of iliofemoral veins. Which of the following is considered the best management for the patient's condition?
Your Answer: Therapeutic dose of low molecular weight heparin for 6 months
Explanation:Deep venous thrombosis (DVT) during pregnancy is associated with high mortality, morbidity, and costs. Pulmonary embolism (PE), its most feared complication, is the leading cause of maternal death in the developed world. DVT can also result in long-term complications that include post thrombotic syndrome (PTS) adding to its morbidity. Women are up to 5 times more likely to develop DVT when pregnant. The current standard of care for this condition is anticoagulation.
Low molecular weight heparin (LMWH) is the preferred agent for prophylaxis and treatment of DVT during pregnancy. A disadvantage of LMWH over unfractionated heparin (UFH) is its longer half-life, which may be a problem at the time of delivery.
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This question is part of the following fields:
- Obstetrics
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Question 16
Correct
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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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This question is part of the following fields:
- Obstetrics
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Question 17
Correct
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A 23-year-old G1P0 female presents to your department with a complaint of not having menstrual periods over the last 6 months. She had her first menstrual periods at the age of 13 and they have been consistent since then with a cycle of 28 days. She reports that she had an unplanned pregnancy 8 months ago and did an elective abortion at the 8th week of gestation. Since that time she has not had menstrual periods. She is sexually active with her boyfriend and they use condoms consistently. The pregnancy test is negative. Which of the following diagnostic tests is most likely to confirm the diagnosis?
Your Answer: Hysteroscopy
Explanation:This patient presents with secondary amenorrhea, most likely caused by Asherman’s syndrome- Secondary amenorrhea is defined as absence of menstruation for – 3 months in a patient who had regular menstruation previously or absence of menstruation for 9 months in a patient who had oligomenorrhea- Asherman’s syndrome as the cause of her amenorrhea is suggested by its beginning shortly after undergoing elective abortion. It is an outflow tract obstruction caused by intrauterine synechiae resulting from the procedure.
The best diagnostic test to confirm this diagnosis is hysteroscopy. It can allow visualization of the uterine cavity, the nature and extent of intrauterine synechiae.
→ Progesterone withdrawal test is one of the diagnostic studies done in the early work-up of secondary amenorrhoea- It is usually followed by the estrogen-progesterone challenge test and other tests. Progesterone withdrawal test alone would not confirm Asherman’s syndrome.
→ Pelvic ultrasound is more useful in primary amenorrhea work-up when the presence or absence of the uterus is to be confirmed- It is not very useful in the evaluation of intrauterine adhesions.
→ Brain MRI is useful in confirming the presence of pituitary tumours in patients, who are found to have high levels of prolactin. This patient’s most likely cause of secondary amenorrhea is Asherman’s syndrome.
→ TSH and prolactin levels should be the next step in the work-up of secondary amenorrhea after pregnancy has been ruled out; however, these studies cannot confirm Asherman’s syndrome. -
This question is part of the following fields:
- Obstetrics
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Question 18
Correct
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A 35-year-old woman from the countryside of Victoria comes to the hospital at 37 weeks of gestation after noticing a sudden gush of clear fluid from her vagina. Speculum examination shows pooling of liquor in the posterior fornix and patient developed fever, tachycardia and chills 12 hours after this episode. Apart from giving antibiotics, what will be your strategy in management of this case?
Your Answer: Induce labour now
Explanation:Above mentioned patient presented with symptoms of premature rupture of membranes (PROM) which refers to membrane rupture before the onset of uterine contractions.
A sudden gush of clear or pale yellow fluid from the vagina is the classic clinical presentation of premature rupture of membranes. Along with this the patient also developed signs of infection like fever, tachycardia and sweating which is suggestive of chorioamnionitis.
Vaginal examination is never performed in patients with premature rupture of membrane, instead a speculum examination is the usually preferred method which will show fluid in the posterior fornix.
The following are the steps in management of premature rupture of membrane:
– Admitting the patient to hospital.
– Take a vaginal
ervical smears.
– Measure and monitor both white cell count and C- reactive protein levels.
– Continue pregnancy if there is no evidence of infection or fetal distress.
– In presence of any signs of infection or if CTG showing fetal distress it is advisable to induce labour.
– Corticosteroids must be administered if delivery is prior to 34 weeks of gestation.
– Give antibiotics as prevention and for treatment of infection. -
This question is part of the following fields:
- Obstetrics
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Question 19
Correct
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A 29-year-old G1P0 presents to your office at her 18 weeks gestational age for an unscheduled visit due to right-sided groin pain. She describes the pain as sharp in nature, which is occurring with movement and exercise and that the pain will be alleviated with application of a heating pad. She denies any change in urinary or bowel habits and there is no fever or chills. What would be the most likely etiology of pain in this patient?
Your Answer: Round ligament pain
Explanation:The patient is presenting with classic symptoms of round ligament pain.
Round ligaments are structures which extends from the lateral portion of the uterus below to the oviduct and will travel downward in a fold of peritoneum to the inguinal canal to get inserted in the upper portion of the labium majus. As the gravid uterus grows out of pelvis during pregnancy, these ligaments will stretch, mostly during sudden movements, resulting in a sharp pain. Due to dextrorotation of uterus, which occurs commonly in pregnancy, the round ligament pain is experienced more frequently over the right side. Usually this pain improves by avoiding sudden movements, by rising and sitting down gradually, by the application of local heat and by using analgesics.As the patient is not experiencing any symptoms like fever or anorexia a diagnosis of appendicitis is not likely. Also in pregnant women appendicitis often presents as pain located much higher than the groin area as the growing gravid uterus pushes the appendix out of pelvis.
As the pain is localized to only one side of groin and is alleviated with a heating pad the diagnosis of preterm labor is unlikely. In addition, the pain would persist even at rest and not with just movement in case of labor.
As the patient has not reported of any urinary symptoms diagnosis of urinary tract infection is unlikely.
Kidney stones usually presents with pain in the back and not lower in the groin. In addition, with a kidney stone the pain would occur not only with movement, but would persist at rest as well. So a diagnosis of kidney stone is unlikely in this case.
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This question is part of the following fields:
- Obstetrics
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Question 20
Incorrect
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The most common cause of perinatal death in mono-amniotic twin is:
Your Answer: Twin-twin transfusion syndrome
Correct Answer: Cord entrapment
Explanation:Cord entanglement, a condition unique to MoMo pregnancies, occurs in 42 to 80% of the cases and it has been traditionally related to high perinatal mortality. Umbilical cord entanglement is present in all monoamniotic twins when it is systematically evaluated by ultrasound and colour Doppler. Perinatal mortality in monoamniotic twins is mainly a consequence of conjoined twins, twin reversed arterial perfusion (TRAP), discordant anomaly and spontaneous miscarriage before 20 weeks’ gestation. Expectantly managed monoamniotic twins after 20 weeks have a very good prognosis despite the finding of cord entanglement. The practice of elective very preterm delivery or other interventions to prevent cord accidents in monoamniotic twins should be re-evaluated.
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This question is part of the following fields:
- Obstetrics
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