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Nitrofurantoin renal function — GPhC CRA MCQ

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ModerateInfectionsNitrofurantoin renal functionGPhC CRA

A 79-year-old woman has a prescription for nitrofurantoin 100mg modified-release twice daily for UTI. Her recent eGFR is 32 mL/min/1.73m2 and she has fever and flank pain. What is the most appropriate action?

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Correct answer: AContact the prescriber because renal function and upper UTI symptoms need review

Nitrofurantoin is not suitable for suspected upper urinary tract infection because tissue penetration is inadequate. Renal function also affects suitability, with caution or avoidance depending on eGFR and treatment context. Fever and flank pain suggest pyelonephritis and need medical assessment. The pharmacist should contact the prescriber urgently.

Reference: BNF; NICE CKS