Question

A 64-year-old man is scheduled for elective colonoscopy. He is on warfarin for atrial fibrillation with a target INR of 2-3. According to warfarin management guidelines, what is the usual target INR range for stroke prevention in non-valvular AF?

Accepted Answer

2.0-3.0

Answer

1.0-1.5

Answer

1.5-2.0

Answer

3.0-4.0

Answer

>4.0

Practice question

A 64-year-old man is scheduled for elective colonoscopy. He is on warfarin for atrial fibrillation with a target INR of 2-3. According to warfarin management guidelines, what is the usual target INR range for stroke prevention in non-valvular AF?