When reinforcing instructions to a client taking allopurinol, which instruction is indicated?

When reinforcing instructions to a client taking allopurinol, which instruction is indicated?

• A. Instruct the client to drink 3000 mL of fluid per day.
• B. Limit fluids to 1000 mL per day
• C. Avoid fluids with meals
• D. Decrease water intake to prevent urination

Answer: (A)

Adequate hydration is essential when taking allopurinol to prevent uric acid crystals from forming in the urine and to reduce the risk of kidney stones. Allopurinol lowers uric acid production, but dilute urine helps keep dissolved uric acid from precipitating and hurting the kidneys. Encouraging about 3 liters of fluid per day keeps urine dilute and promotes proper excretion, unless a clinician has told the patient to limit fluids for another reason. Other approaches that reduce fluid intake or avoid fluids with meals would raise the risk of crystal formation and stone development, so instructing a daily intake of around 3,000 mL supports safe, effective therapy.

Adequate hydration is essential when taking allopurinol to prevent uric acid crystals from forming in the urine and to reduce the risk of kidney stones. Allopurinol lowers uric acid production, but dilute urine helps keep dissolved uric acid from precipitating and hurting the kidneys. Encouraging about 3 liters of fluid per day keeps urine dilute and promotes proper excretion, unless a clinician has told the patient to limit fluids for another reason. Other approaches that reduce fluid intake or avoid fluids with meals would raise the risk of crystal formation and stone development, so instructing a daily intake of around 3,000 mL supports safe, effective therapy.