Question

A 70-year-old man on warfarin for atrial fibrillation has an INR of 6.0 on routine testing. He has no bleeding or bruising and is otherwise well. What is the most appropriate management?

Accepted Answer

Omit warfarin for 1–2 doses and consider a small oral dose of vitamin K

Answer

Continue warfarin at the same dose and recheck INR in 1 week

Answer

Stop warfarin and give intravenous vitamin K 10 mg

Answer

Admit for urgent prothrombin complex concentrate

Answer

Switch immediately to aspirin monotherapy

Practice question

A 70-year-old man on warfarin for atrial fibrillation has an INR of 6.0 on routine testing. He has no bleeding or bruising and is otherwise well. What is the most appropriate management?