skip to main content

Warfarin monitoring — GPhC CRA MCQ

Instant feedback + full explanation. One question, done properly.

EasyPatient Counselling and Pharmaceutical CareWarfarin monitoringGPhC CRA

A patient newly started on warfarin for atrial fibrillation collects the first community prescription. He asks why the anticoagulation clinic has arranged several early appointments. He has no bleeding symptoms. What monitoring is required?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: D — INR monitoring until the dose is stable, then at agreed intervals

Warfarin has a narrow therapeutic index and the dose is adjusted according to INR. Monitoring is frequent during initiation or after changes, then less frequent once stable. Counselling should also cover bleeding, diet consistency and interaction checks.

Reference: BNF; NICE CKS