Question

A 70-year-old woman takes warfarin for atrial fibrillation. She requires co-trimoxazole for a UTI. How should you manage her warfarin dosing according to BNF guidance?

Accepted Answer

Reduce warfarin dose and monitor INR more frequently

Answer

Stop warfarin immediately

Answer

No change in warfarin dose

Answer

Increase warfarin dose

Answer

Replace warfarin with aspirin

Practice question

A 70-year-old woman takes warfarin for atrial fibrillation. She requires co-trimoxazole for a UTI. How should you manage her warfarin dosing according to BNF guidance?