A 72-year-old man on warfarin for atrial fibrillation attends for routine INR monitoring. He feels well. His target INR is 2.0-3.0, but today his INR ...

Question

A 72-year-old man on warfarin for atrial fibrillation attends for routine INR monitoring. He feels well. His target INR is 2.0-3.0, but today his INR is 6.2. There is no bleeding. What is the most appropriate management according to community warfarin guidelines?

Accepted Answer

Withhold warfarin temporarily and consider low-dose oral vitamin K, with close follow-up

Answer

Continue his usual dose of warfarin and recheck INR in 1 week

Answer

Administer high-dose intravenous vitamin K and prothrombin complex concentrate immediately

Answer

Stop warfarin permanently

Answer

Switch to aspirin alone

au-amc MCQ (SBA): High INR on warfarin

A 72-year-old man on warfarin for atrial fibrillation attends for routine INR monitoring. He feels well. His target INR is 2.0-3.0, but today his INR is 6.2. There is no bleeding. What is the most appropriate management according to community warfarin guidelines?