Drug Classes and Mechanisms · USMLE Step 1

Which antihypertensive class might exacerbate hyperkalemia due to reduced aldosterone activity in kidney?

  1. Thiazide diuretics
  2. Beta-blockers
  3. ACE inhibitors / ARBs
  4. Calcium channel blockers
Show answer and explanation

Correct answer: ACE inhibitors / ARBs

ACE inhibitors and ARBs reduce angiotensin II–mediated aldosterone release, decreasing potassium excretion and risking hyperkalemia.

Difficulty: Medium Question 13 of 19

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