Question

A 72-year-old man with atrial fibrillation is started on warfarin for stroke prevention. He has no other comorbidities and normal renal function. What is the target INR range for his anticoagulation to reduce stroke risk in non-valvular atrial fibrillation?

Accepted Answer

2.0-3.0

Answer

1.5-2.0

Answer

2.5-3.5

Answer

3.0-4.0

Answer

3.5-4.5

Practice question

A 72-year-old man with atrial fibrillation is started on warfarin for stroke prevention. He has no other comorbidities and normal renal function. What is the target INR range for his anticoagulation to reduce stroke risk in non-valvular atrial fibrillation?