A child who weighs 42 kg receives a prescription for methy/prednisolone succinate 5 mg/kg/day IV in divided doses every 6 hours. The medication is available in "Methy prednisolone succinate 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"]
Given:
Ordered dose of methylprednisolone succinate: 1.5 mg/kg/day IV in divided doses every 6 hours
Child's weight: 42 kg
Concentration of methylprednisolone succinate: 40 mg/mL
Step 1: Calculate the total daily dose of methylprednisolone succinate:
Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)
Total daily dose (mg) = 1.5 mg/kg/day x 42 kg
Total daily dose (mg) = 63 mg/day
Step 2: Calculate the dose per administration:
Since the medication is given every 6 hours, there are 4 administrations per day.
Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day
Dose per administration (mg) = 63 mg/day / 4 administrations/day
Dose per administration (mg) = 15.75 mg
Step 3: Calculate the volume to be administered per dose:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)
Volume (mL) = 15.75 mg / 40 mg/mL
Volume (mL) = 0.39375 mL
Step 4: Round to the nearest tenth:
Volume (mL) ≈ 0.4 mL
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Related Questions
Correct Answer is ["120"]
Explanation
Given:
Ordered dose of Labetalol HCl: 2 mg/minute
Concentration of Labetalol HCl: 200 mg in 200 mL (1 mg/mL)
Step 1: Calculate the infusion rate in mg/hour:
Infusion rate (mg/hour) = Ordered dose (mg/minute) x 60 minutes/hour
Infusion rate (mg/hour) = 2 mg/minute x 60 minutes/hour
Infusion rate (mg/hour) = 120 mg/hour
Step 2: Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Infusion rate (mg/hour) / Concentration (mg/mL)
Infusion rate (mL/hour) = 120 mg/hour / 1 mg/mL
Infusion rate (mL/hour) = 120 mL/hour
Correct Answer is ["200"]
Explanation
Given:
Volume of fluid: 50 mL
Infusion time: 15 minutes
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Convert infusion time from minutes to hours:
Infusion time (hr) = 15 minutes / 60 minutes/hr
Infusion time (hr) = 0.25 hour
Step 2: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = 50 mL / 0.25 hr
Flow rate (mL/hr) = 200 mL/hr
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