A child who weighs 42 kg receives a prescription for methylprednisolone succinate 1.5 mg/kg/day intravenously in divided doses every 6 hours. The medication is available in 40 mg/mL vials. How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

To calculate the amount of methylprednisolone succinate the child receives with each dose, we need to divide the daily dose by the number of doses per day and then divide by the concentration of the medication. The daily dose is 1.5 mg/kg/day, the number of doses per day is 4 (every 6 hours), and the concentration of the medication is 40 mg/mL. Therefore, the amount of methylprednisolone succinate is: (1.5 mg/kg/day x 42 kg) / 4 / 40 mg/mL = 0.39 mL The nurse should administer 0.4 mL (rounded to the nearest tenth) with each dose.