Correct Answer: C

Rationale: The correct answer is C: Placental insufficiency. Placental insufficiency can lead to decreased oxygen and nutrient supply to the fetus, causing fetal distress during labor. This can result in abnormal fetal heart rate patterns and potential complications. A: Umbilical cord prolapse can also cause fetal distress but is less common than placental insufficiency. B: Uterine rupture is a serious complication but typically presents with maternal symptoms rather than fetal distress. D: Fetal position can impact labor progress but is not typically the primary cause of fetal distress.

Correct Answer: A

Rationale: The correct answer is A (36 weeks gestation) because at this stage, the fetal lie should stabilize into a consistent position, typically longitudinal. Before 36 weeks, fetal movement and position can vary frequently. Choices B, C, and D are incorrect as they are past the point where fetal lie should have stabilized. At 42 weeks gestation (Choice B), the baby is considered post-term, and fetal lie should have already been established. Similarly, Choices C (38 weeks) and D (40 weeks) fall within the expected range for fetal lie stabilization.

Correct Answer: B

Rationale: The correct answer is B: Tonic. During the tonic stage of eclampsia, the muscles go into a prolonged contraction leading to an arched back and tightly clenched teeth. This is due to sustained muscle rigidity. In contrast, the clonic stage involves rhythmic muscle contractions and relaxations, not sustained rigidity. The premonitory stage is characterized by warning signs like headaches and visual disturbances, not specific physical postures. Coma is a severe stage of unconsciousness, not associated with specific physical postures or muscle rigidity seen in the tonic stage of eclampsia.

Correct Answer: A

Rationale: The correct answer is A. High-dose initial steroids are tapered off over a period of 4 to 6 weeks posttransplant. This is because corticosteroids are used initially to prevent rejection and then gradually tapered to minimize side effects. Choice B is incorrect as it states a general interest but does not address the specific protocol for corticosteroid use. Choice C is incorrect as there is no evidence suggesting better results in corticosteroid-free protocols for second-transplant recipients. Choice D is incorrect as there is no strong evidence supporting corticosteroid-free rejection protocols in posttransplant patients.

Correct Answer: B

Rationale: Iron supplementation benefits pregnancy by correcting or preventing iron deficiency anemia in the mother. Anemia can lead to various complications for the mother and baby. Iron is essential for the production of hemoglobin, which carries oxygen to tissues. Therefore, by reducing anemia, iron supplementation ensures optimal oxygen delivery to both the mother and the developing fetus. This ultimately supports healthy pregnancy outcomes. Explanation for other choices: A: Iron supplementation does not directly increase fetal blood flow. C: While iron deficiency may increase the risk of miscarriage, iron supplementation alone does not prevent miscarriages. D: Iron is not directly involved in fetal bone growth, so iron supplementation does not enhance this aspect of fetal development.