when and how to use vitamin K to reverse the effects of warfarin

April 2009

There's debate about when and how to use vitamin K to reverse the effects of warfarin.

Vitamin K usually IS needed when the patient has an INR over 9... or has serious bleeding. It's usually NOT needed for INRs under 5.

But it's controversial when INR is 5 to 9 and there's no bleeding.

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Table of Contents

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