A nurse is caring for a client who has a bacterial infection and is receiving gentamicin. Which of the following actions should the nurse take to minimize the risk of an adverse effect of the medication?

A. Instruct the client to report agitation. – Agitation is not a common adverse effect of gentamicin. Neurotoxicity is rare and typically presents with other symptoms such as numbness or tingling. B. Administer the medicine with food. – Gentamicin is given parenterally (IV or IM), not orally, so food intake is not relevant. C. Limit the client's fluid intake. – Adequate hydration is important when receiving nephrotoxic drugs like gentamicin to protect the kidneys, so fluid restriction is contraindicated. D. Monitor the serum medication levels. – Gentamicin is an aminoglycoside antibiotic with a narrow therapeutic index. Monitoring peak and trough levels helps prevent nephrotoxicity and ototoxicity, two serious potential adverse effects.