A 72-year-old woman presents with new-onset atrial fibrillation discovered on an ECG in clinic. She has no history of heart failure, hypertension, dia...

Question

A 72-year-old woman presents with new-onset atrial fibrillation discovered on an ECG in clinic. She has no history of heart failure, hypertension, diabetes, stroke, or vascular disease. According to Canadian atrial fibrillation guidance using the CHADS-65 approach, what is the most appropriate stroke prevention strategy?

Accepted Answer

Full-dose oral anticoagulation with a direct oral anticoagulant

Answer

No antithrombotic therapy is required

Answer

Aspirin 81 mg daily

Answer

Dual antiplatelet therapy with aspirin and clopidogrel

Answer

Warfarin with INR target 1.5-2.0

ca-mccqe1 MCQ (SBA): Atrial fibrillation stroke prevention