A nurse is preparing to administer pyrazinamide 20 mg/kg PO to a client who weighs 165 lb and has tuberculosis. Available is pyrazinamide 500 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Calculation: Convert the client’s weight from pounds to kilograms Weight = 165 ÷ 2.2 ≈ 75 kg Calculate the ordered dose in mg Ordered Dose = 20 × 75 Ordered Dose = 1,500 mg Identify the available tablet strength Tablet Strength: 500 mg per tablet Calculate the number of tablets to administer Number of Tablets = Ordered Dose ÷ Tablet Strength Number of Tablets = 1,500 ÷ 500 = 3