Question

A 72-year-old with newly diagnosed atrial fibrillation (CHA₂DS₂‑VASc 4) and normal renal function asks about stroke prevention. What is the preferred antithrombotic strategy?

Accepted Answer

A direct oral anticoagulant

Answer

No anticoagulation; aspirin alone

Answer

Warfarin (INR 2-3) as first line

Answer

Dual antiplatelet therapy

Answer

Low-dose rivaroxaban 2.5 mg twice daily plus aspirin 81 mg

Practice question

A 72-year-old with newly diagnosed atrial fibrillation (CHA₂DS₂‑VASc 4) and normal renal function asks about stroke prevention. What is the preferred antithrombotic strategy?