A 68-year-old man with paroxysmal nonvalvular atrial fibrillation, hypertension, and diabetes has a CHA₂DS₂-VASc score of 3 and normal renal function ...

Question

A 68-year-old man with paroxysmal nonvalvular atrial fibrillation, hypertension, and diabetes has a CHA₂DS₂-VASc score of 3 and normal renal function (eGFR 70 mL/min/1.73 m²). He has no history of bleeding and no mechanical valves. Which long-term strategy best reduces his stroke risk?

Accepted Answer

Start a direct oral anticoagulant (e.g., apixaban)

Answer

Begin aspirin 81 mg daily

Answer

No antithrombotic therapy

Answer

Switch to warfarin with INR 2-3

Answer

Left atrial appendage occlusion now

us-abim MCQ (SBA): Atrial Fibrillation

A 68-year-old man with paroxysmal nonvalvular atrial fibrillation, hypertension, and diabetes has a CHA₂DS₂-VASc score of 3 and normal renal function (eGFR 70 mL/min/1.73 m²). He has no history of bleeding and no mechanical valves. Which long-term strategy best reduces his stroke risk?