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Gentamicin monitoring — GPhC CRA MCQ

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HardInfectionsGentamicin monitoringGPhC CRA

A hospital-at-home nurse asks about gentamicin prescribed for a 76-year-old man with sepsis. He has CKD stage 3 and is also taking furosemide. What monitoring is required?

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Correct answer: ARenal function and gentamicin concentrations

Gentamicin has a narrow therapeutic index and can cause nephrotoxicity and ototoxicity. Renal function affects dosing, and therapeutic drug monitoring is required. Furosemide may add ototoxic or renal risk in some settings. The other monitoring sets do not address aminoglycoside safety.

Reference: BNF