A 60-year-old woman has atrial fibrillation and a mechanical mitral valve. Which antithrombotic regimen is most appropriate for stroke prevention?...

Question

A 60-year-old woman has atrial fibrillation and a mechanical mitral valve. Which antithrombotic regimen is most appropriate for stroke prevention?

Accepted Answer

Warfarin with an INR target appropriate for mechanical mitral valve (typically 2.5-3.5)

Answer

Apixaban

Answer

Dabigatran

Answer

No anticoagulation if CHA₂DS₂‑VASc is 1

Answer

Aspirin alone

us-abfm MCQ (SBA): Atrial Fibrillation with Mechanical Valve