A client who weighs 160 pounds receives a prescription for gentamicin 5 mg/kg/day IV in divided doses every 8 hours. How many mg should the nurse administer with each dose? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

Calculation Steps: Step 1: Convert weight from pounds to kilograms: 160 pounds ÷ 2.2 = 72.7 kg. Result = 72.7 kg. Step 2: Calculate the total daily dose: 5 mg/kg/day × 72.7 kg = 363.5 mg/day. Result = 363.5 mg/day. Step 3: Calculate the dose per administration: 363.5 mg/day ÷ 3 doses/day = 121.2 mg/dose. Result = 121.2 mg/dose. Step 4: Round to the nearest whole number: 121.2 mg ≈ 121 mg. Result = 121 mg.