Question

A 33-year-old G2P1 woman at 29 weeks gestation presents with confirmed preterm premature rupture of membranes. She denies labor. She takes prenatal vitamins and iron. She denies substance abuse, smoking or alcohol use. Her prior pregnancy was delivered vaginally at 41 weeks after spontaneous rupture of membranes. Her blood pressure is 110/70; pulse 84; temperature 98.6°F (37.0°C). Which of the following is the best medication to delay the onset of labor?

A. Antibiotics
B. Betamethasone
C. Calcium channel blocker
D. Beta mimetics
E. Magnesium sulfate

Answer 1

Magnesium sulfate is the best medication to delay the onset of labor in a woman with preterm premature rupture of membranes. It relaxes the uterus muscles and can buy time for other interventions.

Step-by-step explanation:

The best medication to delay the onset of labor in a woman with preterm premature rupture of membranes is Magnesium sulfate. Magnesium sulfate is a tocolytic medication that can help prevent or delay preterm labor by relaxing the muscles of the uterus. This medication is commonly used when there is a risk of preterm birth to buy time for the administration of corticosteroids, such as Betamethasone, which can help mature the baby's lungs.