A nurse is caring for a client who has an admitted diagnosis of renal calculi and a medical history of hypertension and gout. The client works 6 days of the week outside in temperatures between 32.2° C to 37.8° C (90° F to 100° F). Which of the following should the nurse tell the client to prevent a reoccurrence of renal calculi?

A. Continue to take your prescribed gout medication is important for managing gout, but it does not directly prevent renal calculi recurrence. B. A diet high in calcium oxalate-rich foods can contribute to stone formation and should generally be limited. C. Drinking plenty of fluids helps dilute the urine and reduce the concentration of stone-forming substances, especially important for someone working in hot environments where dehydration risk is high. D. A diet high in purine-rich foods (e.g., red meats, organ meats, shellfish) increases uric acid levels and can promote uric acid stone formation, especially in clients with gout.