Difficulty: Medium
Average Score: 70%
Simulated
A client who has a history of myocardial infarction (MI) is prescribed aspirin 325 mg. The nurse recognizes that the aspirin is given due to which of the following actions of the medication?
Correct answer
B
Rationale
Aspirin acts as an antiplatelet agent by irreversibly inhibiting cyclooxygenase-1 (COX-1) enzyme, reducing thromboxane A2 production, thereby preventing platelet aggregation and thrombus formation.