Pharmacology · single question
Lisinopril lowers blood pressure by:
Show answer and explanation
Correct answer: A. Inhibiting angiotensin-converting enzyme (blocking angiotensin I → angiotensin II)
- A. Correct. Lisinopril is an ACE inhibitor: it blocks conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone (a dry cough from bradykinin is a classic side effect).
- B. ARBs (e.g., losartan) block the angiotensin II receptor — a different class.
- C. Beta-blockers (e.g., metoprolol) act on adrenergic receptors.
- D. Calcium-channel blockers (e.g., amlodipine) act on calcium channels.