A nurse is preparing to administer methylprednisolone 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.)
The Correct Answer is ["5.1"]
To calculate the correct dose of methylprednisolone, we need to follow these steps:
-
Convert pounds to kilograms:
- 64 lb * 0.4536 kg/lb = 29 kg
-
Calculate the daily dose in milligrams:
- 7 mg/kg/day * 29 kg = 203 mg/day
-
Calculate the dose per administration:
- Since the medication is divided into two doses, divide the daily dose by 2:
- 203 mg/day / 2 = 101.5 mg/dose
- Since the medication is divided into two doses, divide the daily dose by 2:
-
Determine the volume needed from the available concentration:
- 101.5 mg * (1 mL / 20 mg) = 5.075 mL
Therefore, the nurse should administer 5.1 mL of methylprednisolone per dose.
Answer: 5.1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["7.5"]
Explanation
1. Determine the volume based on concentration and dosage:
Digoxin dosage (mg): 0.375 mg
Digoxin concentration (mg/mL): 0.05 mg/mL (from the available elixir)
Volume (mL) = Dosage (mg) / Concentration (mg/mL)
Volume (mL) = 0.375 mg / 0.05 mg/mL
2. Round the answer to the nearest tenth:
The calculated volume is 7.5 mL. Rounding to the nearest tenth:
Volume (mL) = 7.5 mL (rounded)
Therefore, the nurse should administer 7.5 mL of digoxin elixir.
Correct Answer is ["5.3"]
Explanation
To calculate the correct dose of clindamycin, we need to follow these steps:
-
Convert pounds to kilograms:
- 53 lb * 0.4536 kg/lb = 24 kg
-
Calculate the daily dose in milligrams:
- 10 mg/kg/day * 24 kg = 240 mg/day
-
Calculate the dose per administration:
- Since the medication is divided into three doses, divide the daily dose by 3:
- 240 mg/day / 3 = 80 mg/dose
- Since the medication is divided into three doses, divide the daily dose by 3:
-
Determine the volume needed from the available concentration:
- 80 mg * (5 mL / 75 mg) = 5.33 mL
Therefore, the nurse should administer 5.3 mL of clindamycin per dose.
Answer: 5.3 mL
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