Which statement indicates a client understands the teaching about verapamil?

• A. "I need to throw away my grapefruit juice."
• B. "I will have to stop eating a banana for breakfast."
• C. "I should report any problems with sex to my doctor."
• D. "I should look for lip swelling and report to my doctor."

Answer: (A)

The statement indicating a client understands the teaching about verapamil is that they need to throw away their grapefruit juice. This is correct because grapefruit juice interacts with verapamil and can increase the level of the drug in the bloodstream, leading to potential toxicity and adverse effects. It is important for patients taking verapamil to avoid grapefruit juice to ensure the medication works safely and effectively.

The other statements relate to potential side effects and interactions but do not demonstrate a clear understanding of critical dietary restrictions associated with verapamil therapy. For example, while reporting problems with sexual function is important for any medication, it is not specific to verapamil's known interactions. Similarly, concerns about bananas and lip swelling do not address the most significant dietary precaution associated with verapamil, which is the interaction with grapefruit juice.