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Warfarin high INR — GPhC CRA MCQ

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EasyCardiovascular TherapeuticsWarfarin high INRGPhC CRA

A patient taking warfarin for AF brings an anticoagulation book showing INR 5.8 today. They have no bleeding, no bruising and no new symptoms. The clinic has not yet contacted them. What is the most appropriate action?

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Correct answer: E — Contact the anticoagulation clinic before supply advice

An INR of 5.8 is above the usual therapeutic range and requires anticoagulation-clinic management even without bleeding. The patient may need temporary withholding or dose adjustment. Aspirin or extra warfarin would increase bleeding risk.

Reference: BNF; NICE CKS