A 3-month-old infant is being treated with Vancomycin for bacterial meningitis. Order: 60mg/kg/day divided every 6 hours. The infant weighs 11 pounds. The nurse first confirms safe dose. The nurse then calculates the dosage. Which one of the following is the correct SINGLE dose order for the nurse to administer?

Convert weight to kg: 11 lbs ÷ 2.2 = 5 kg. Calculate total daily dose: 60 mg/kg/day × 5 kg = 300 mg/day. Divide the total daily dose by the number of doses per day: 300 mg/day ÷ 4 (every 6 hours) = 75 mg per dose Convert weight to kg: 11 lbs ÷ 2.2 = 5 kg. Calculate total daily dose: 60 mg/kg/day × 5 kg = 300 mg/day. Divide the total daily dose by the number of doses per day: 300 mg/day ÷ 4 (every 6 hours) = 75 mg per dose Convert weight to kg: 11 lbs ÷ 2.2 = 5 kg. Calculate total daily dose: 60 mg/kg/day × 5 kg = 300 mg/day. Divide the total daily dose by the number of doses per day: 300 mg/day ÷ 4 (every 6 hours) = 75 mg per dose Convert weight to kg: 11 lbs ÷ 2.2 = 5 kg. Calculate total daily dose: 60 mg/kg/day × 5 kg = 300 mg/day. Divide the total daily dose by the number of doses per day: 300 mg/day ÷ 4 (every 6 hours) = 75 mg per dose