A client is taking a medication known to interact with grapefruit juice. What action should the nurse take?

A. Suggest substituting grapefruit juice with orange juice for better results: Orange juice does not cause the same drug interactions as grapefruit juice and may be safe with most medications, but the focus should be on avoiding grapefruit juice. Substituting without explaining the reason does not ensure the client understands the interaction risk. B. Advise the client to drink grapefruit juice to enhance medication efficacy: Grapefruit juice can increase or decrease the blood levels of certain medications by affecting liver enzymes and intestinal metabolism. Drinking grapefruit juice can lead to toxicity or reduced efficacy, making this unsafe. C. Educate the client to avoid grapefruit juice while on the medication: Grapefruit juice inhibits the CYP3A4 enzyme, which can alter the metabolism of many drugs, leading to increased serum levels and risk of adverse effects. Educating the client to avoid grapefruit juice helps prevent toxicity and ensures safe medication use. D. Encourage the client to take the medication with grapefruit juice for better absorption: Taking the medication with grapefruit juice may unpredictably increase or decrease drug absorption. This can cause serious adverse effects or reduce therapeutic effectiveness. Avoiding grapefruit juice is the safe approach.