Nokea
Deep transverse arrest is
- A. Where flexion is always well maintained.
- B. Caused by strong uterine contractions throughout labor.
- C. Caused by a sacrum that is well curved.
- D. Where the level of the occiput and the sinciput is the same.
Correct Answer: D
Rationale: The correct answer is D because deep transverse arrest refers to a situation where the fetal head fails to rotate and descend in the pelvis due to the occiput and sinciput being at the same level. This leads to a prolonged labor. Choice A is incorrect because flexion can be inadequate in deep transverse arrest. Choice B is incorrect because it is not solely caused by uterine contractions but rather fetal malposition. Choice C is incorrect because a well-curved sacrum is not a defining factor in deep transverse arrest.
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In breech delivery, the midwife is advised to keep her hands off the breech as it progressively descends so as to
- A. Ascertain the fetal wellbeing in utero
- B. Allow enough room for the fetus to pass
- C. Allow gravitating descent of the fetus
- D. Prevent excessive traction being applied
Correct Answer: D
Rationale: The correct answer is D: Prevent excessive traction being applied. This is because in a breech delivery, excessive traction can lead to complications such as fetal injuries or umbilical cord prolapse. The midwife should avoid pulling on the baby's legs or body to prevent undue stress on the baby. The other choices are incorrect because: A: Ascertain the fetal wellbeing in utero - this is typically done through other means such as fetal monitoring. B: Allow enough room for the fetus to pass - this should be done by ensuring proper positioning and allowing natural descent. C: Allow gravitating descent of the fetus - this is not a recommended practice as it can cause complications.
The baby dies immediately after birth due to the presence of
- A. Pulmonary stenosis
- B. Aortic coarctation
- C. Truncus arteriosus
- D. Ductus arteriosus
Correct Answer: C
Rationale: The correct answer is C: Truncus arteriosus. In this congenital heart defect, a single large blood vessel arises from the heart instead of the normal two separate vessels (aorta and pulmonary artery). This results in mixing of oxygenated and deoxygenated blood, leading to severe cyanosis and inadequate oxygen supply to the body. This condition is incompatible with life, causing immediate death after birth.
A: Pulmonary stenosis and B: Aortic coarctation are also congenital heart defects but do not typically result in immediate death after birth. Pulmonary stenosis obstructs blood flow to the lungs, while aortic coarctation causes narrowing of the aorta.
D: Ductus arteriosus is a normal fetal blood vessel that connects the pulmonary artery and the aorta but usually closes shortly after birth. Failure of closure can lead to health issues, but it is not typically a cause of immediate death after birth.
In myelodysplastic syndromes, the primary indications for splenectomy include
- A. Major hemolysis unresponsive to medical management
- B. Severe symptoms of massive splenomegaly
- C. Sustained leukocyte elevation above 30,000 cells/µL
- D. Portal hypertension
Correct Answer: C
Rationale: The correct answer is C. In myelodysplastic syndromes, splenectomy is indicated for sustained leukocyte elevation above 30,000 cells/µL to manage symptomatic splenomegaly and cytopenias. This is because an enlarged spleen can sequester and destroy blood cells, leading to low blood cell counts. Choices A, B, and D are incorrect as splenectomy is not typically indicated for major hemolysis unresponsive to medical management, severe symptoms of massive splenomegaly, or portal hypertension in the context of myelodysplastic syndromes.
According to the American College of Cardiology Foundation and the American Heart Association (ACCFAHA), the recommendation regarding antiplatelet therapy in patients with cardiovascular disease preoperatively is that
- A. Antiplatelet therapy should be held for 10 days preoperatively
- B. Cardiac consultation is required before an operation in patients who are on antiplatelet therapy
- C. Medications should be continued unless concerns about hemostasis are significant
- D. Antiplatelet therapy should be initiated in all high-risk cardiac procedures
Correct Answer: B
Rationale: Step-by-step rationale for why choice B is correct:
1. The ACCF/AHA recommends cardiac consultation before an operation for patients on antiplatelet therapy to assess the risk of bleeding versus thrombotic events.
2. Cardiac consultation helps determine the necessity of continuing, modifying, or stopping antiplatelet therapy.
3. This individualized approach ensures optimal perioperative management based on the patient's cardiovascular risk profile.
4. Choice A is incorrect as stopping antiplatelet therapy for 10 days can increase the risk of thrombotic events.
5. Choice C is incorrect as it oversimplifies the decision-making process without considering the patient's specific risks.
6. Choice D is incorrect because initiating antiplatelet therapy in all high-risk cardiac procedures may not be necessary for every patient.
A condition of trial of scar is
- A. Estimated fetal weight of less than 3600g
- B. Availability of a level one hospital nearby
- C. Not more than two previous caesarean section scars
- D. An adequate pelvis with true conjugate 10.5cm
Correct Answer: C
Rationale: Rationale for Correct Answer (C): A trial of scar is indicated when a woman has had no more than two previous caesarean sections. This is because the risk of uterine rupture increases with each subsequent caesarean section due to scar tissue weakening. Limiting the number of previous scars reduces this risk. Therefore, option C is correct.
Summary of Incorrect Choices:
A: Estimated fetal weight is not a determining factor for a trial of scar.
B: Availability of a level one hospital nearby is important for emergency situations but not a criteria for trial of scar.
D: Adequate pelvis with true conjugate 10.5cm is important for vaginal delivery but not a specific requirement for a trial of scar.