Question

A 70-year-old man on long-term warfarin for atrial fibrillation has a routine INR check. His target INR is 2.0-3.0. Today, his INR is 5.5, but he has no signs of bleeding. According to NICE guidelines (or common practice reflecting them), what is the most appropriate management?

Accepted Answer

Administer oral Vitamin K 1-2mg.

Answer

Omit warfarin for 1-2 doses and recheck INR in 2-3 days.

Answer

Administer intravenous Vitamin K 1-2mg.

Answer

Admit to hospital for observation.

Answer

Continue warfarin at the same dose and recheck INR tomorrow.

Practice question

A 70-year-old man on long-term warfarin for atrial fibrillation has a routine INR check. His target INR is 2.0-3.0. Today, his INR is 5.5, but he has no signs of bleeding. According to NICE guidelines (or common practice reflecting them), what is the most appropriate management?