Endocrine Pharmacology USMLE Step 1 Practice Question
A 23-year-old woman with severe hirsutism, acne, and irregular menses presents with clinical hyperandrogenism. She is started on a medication that antagonizes aldosterone receptors while blocking androgen effects. Current vitals: BP 118/76 mmHg, HR 82/min, RR 16/min, temp 37°C. Laboratory studies show serum potassium 5.8 mEq/L (normal 3.5-5.0), normal creatinine, and elevated testosterone. She denies chest pain or palpitations. Which drug most likely caused her hyperkalemia?
Answer choices
- ASpironolactoneCorrect answer
- BClomiphene
- CEplerenone
- DFinasteride
- EFlutamide
- FMetformin
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.