A client is prescribed Methylprednisolone 5 mg/kg/day in four divided doses. The medication is supplied as 7.5 mg/5 mL. The client weighs 220 lbs. How many mL's will the nurse administer per dose? (Use a preceding zero if it applies. Do not use trailing zeros. Round to the nearest tenth)
The Correct Answer is ["25"]
Convert the client's weight from pounds to kilograms:
1 lb = 0.454 kg
Weight in kg = 220 lbs x 0.454 kg/lb = 99.88 kg (approximately 100 kg)
Calculate the total daily dose of Methylprednisolone:
Daily dose = 1.5 mg/kg x 100 kg = 150 mg
Calculate the dose per administration:
The daily dose is divided into four equal doses.
Dose per administration = 150 mg / 4 = 37.5 mg
Determine the concentration of the Methylprednisolone:
The medication is supplied as 7.5 mg per 5 mL.
Concentration = 7.5 mg / 5 mL = 1.5 mg/mL
Calculate the volume (in mL) to administer per dose:
Use the concentration as a conversion factor:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL) Volume (mL) = 37.5 mg / 1.5 mg/mL = 25 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["5.5"]
Explanation
Determine the concentration of the insulin solution:
You have 75 units of insulin in 150 mL of normal saline.
Concentration = 75 units / 150 mL = 0.5 units/mL
Use the infusion rate to calculate the units of insulin per hour:
The client is receiving 11 mL per hour.
Units per hour = Infusion rate (mL/hr) x Concentration (units/mL)
Units per hour = 11 mL/hr x 0.5 units/mL = 5.5 units/hr
Correct Answer is ["15"]
Explanation
Convert the infusion time to minutes:
2 hours x 60 minutes/hour = 120 minutes
Calculate the flow rate in mL/min:
120 mL / 120 minutes = 1 mL/min
Use the drop factor to convert mL/min to gtt/min:
1 mL/min x 15 gtt/mL = 15 gtt/min
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