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    Ati dosage calculation Rn fundamentals proctored assessment 3.2
    Calculation

    A nurse is preparing to administer methylprednisolone 1.7 mg/kg/day IM in two divided doses to a school-age child who weighs 64 lb. Available is methylprednisolone 20 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero If it applies. Do not use a trailing zero.)

    mL

    Explanation & Rationale

    Identify the given information: Dose of methylprednisolone: 1.7 mg/kg/day Weight of the child: 64 lb Concentration of methylprednisolone: 20 mg/mL Convert the child's weight from pounds to kilograms: 1 lb ≈ 0.453592 kg Calculate the total daily dose of methylprednisolone in mg: Total daily dose = Dose/kg/day x Weight (kg) Substitute the values: Total daily dose = 1.7 mg/kg/day x 64 lb x (0.453592 kg/1 lb) Total daily dose ≈ 49.3 mg Calculate the dose per dose (divided in two doses): Dose per dose = Total daily dose / 2 Substitute the values: Dose per dose = 49.3 mg / 2 Dose per dose ≈ 24.65 mg Calculate the volume of methylprednisolone to be administered: Volume = Dose per dose (mg) / Concentration (mg/mL) Substitute the values: Volume = 24.65 mg / 20 mg/mL Volume ≈ 1.2325 mL Round the answer to the nearest tenth: Volume ≈ 1.2 mL

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