Which action describes how apixaban produces its anticoagulant effect?
Correct answer: A. It directly inhibits factor Xa
- A. It directly inhibits factor Xa
- B. It activates antithrombin to inhibit thrombin
- C. It blocks platelet cyclooxygenase
- D. It prevents vitamin K absorption
Explanation
Apixaban directly inhibits factor Xa, reducing thrombin generation and clot formation. Antithrombin activation describes heparin, platelet cyclooxygenase inhibition describes aspirin, and interference with vitamin K action describes warfarin.
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About Cardiovascular and Respiratory Drugs
Cardiovascular and respiratory drugs include antihypertensives, diuretics, antianginal agents, antiarrhythmics, cardiac glycosides, anticoagulants, bronchodilators, corticosteroids and cough medicines. Questions focus on mechanisms, indications, contraindications, toxicity and monitoring, especially the difference between drugs that reduce blood pressure, improve cardiac output or open narrowed airways.
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50 free Cardiovascular and Respiratory Drugs MCQs from Nursing Pharmacology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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