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.)
The Correct Answer is ["0.4"]
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.
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Related Questions
Correct Answer is ["10.2"]
Explanation
-
Calculate the total dosage per minute:
- Weight = 91 kg
- Dosage = 3 mcg/kg/min
- Total dosage = 91 × 3 = 273 mcg/min
-
Convert mcg to mg:
- 273 mcg ÷ 1000 = 0.273 mg/min
-
Determine the concentration of the solution:
- The solution contains 400 mg in 250 mL
- Concentration = 400 mg ÷ 250 mL = 1.6 mg/mL
-
Calculate the infusion rate in mL/min:
- Infusion rate = 0.273 mg/min ÷ 1.6 mg/mL = 0.1706 mL/min
-
Convert to mL/hour:
- 0.1706 mL/min × 60 min/hour ≈ 10.236 mL/hour
-
Round to the nearest tenth:
- Final answer = 10.2 mL/hour
Correct Answer is ["0.4"]
Explanation
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.
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