A 32-week pregnant woman is admitted with preterm labor. What is the most appropriate intervention to delay labor?
Correct Answer: A
Rationale: The correct answer is A: Administer magnesium sulfate. Magnesium sulfate is commonly used to delay preterm labor by relaxing uterine smooth muscle. It inhibits contractions and delays labor progression. It is a standard treatment to prevent preterm birth and reduce the risk of complications for both the mother and the baby.
Choice B: Emergency cesarean section is not indicated for delaying preterm labor unless there are severe complications putting the mother or baby at immediate risk.
Choice C: Administering a prostaglandin inhibitor may help in some cases, but magnesium sulfate is the preferred choice for delaying labor in preterm pregnancies.
Choice D: Starting a Pitocin infusion would actually stimulate contractions and hasten labor, which is the opposite of what is needed in this scenario.