Endocrine Pharmacology USMLE Step 1 Practice Question
A 25-year-old woman at 6 weeks gestation presents requesting medical abortion. Vital signs are stable (BP 118/76, HR 82, RR 16, Temp 37.0°C). She receives a progesterone receptor antagonist followed by a prostaglandin analog. Laboratory studies show appropriate β-hCG elevation for gestational age; transvaginal ultrasound confirms intrauterine pregnancy without contraindications to medical management. She denies vaginal bleeding or pelvic pain. Which drug was most likely administered first?
Answer choices
- AMifepristoneCorrect answer
- BLeuprolide
- CTamoxifen
- DOxytocin
- EClomiphene
- FFinasteride
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