A nurse is reinforcing teaching with a client who is about to start taking allopurinol to treat gout. Which of the following statements by the client indicates an understanding of the teaching?

A. Allopurinol can be taken with or after meals to reduce gastrointestinal upset; taking it on an empty stomach is not necessary. B. Fever is not an expected side effect of allopurinol and may indicate an adverse reaction or infection. C. Drinking at least 3 quarts (≈3 liters) of water per day helps prevent kidney stones, a common complication of uric acid buildup, demonstrating correct understanding. D. A rash can indicate a serious hypersensitivity reaction to allopurinol; the client should stop the medication and contact the provider immediately, not self-treat with an antihistamine.