A nurse is preparing to administer antibiotics 15mg/kg/day divided equally every 12 hrs. The client weighs 158lbs. How many mg should the nurse administer with each dose? Round of to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.

1. Convert pounds to kilograms: 1 pound = 0.453592 158 lbs x 0.453592 kg/lb ≈ 71.71 kg 2. Calculate the total daily dosage: 15 mg/kg/day x 71.71 kg ≈ 1075.65 mg/day 3. Calculate the dosage per dose (divided equally every 12 hours): 1075.65 mg/day / 2 doses ≈ 537.83 mg/dose 4. Round to the nearest whole number: 537.83 mg ≈ 538 mg