Pharmacology · single question
Which of the following does NOT affect platelet aggregation?
Show answer and explanation
Correct answer: D. Acetaminophen
Acetaminophen does not inhibit platelet COX enzymes and therefore does NOT affect platelet aggregation.
- A. ❌ Naproxen reversibly inhibits COX-1/2 and does affect platelet aggregation.
- B. ❌ Ibuprofen reversibly inhibits COX-1/2, temporarily reducing aggregation.
- C. ❌ Aspirin irreversibly inhibits COX-1, permanently impairing aggregation.
- D. ✅ CORRECT – Acetaminophen does not inhibit platelet COX and does NOT affect platelet aggregation.