A nurse is preparing to administer methy prednisolone 7 mg/kg/day IM in two divided doses to a school-age child who weighs 64 lb. Available is methyiprednisolone 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"]
First, convert the child's weight from pounds to kilograms: 64 lb / 2.205 lb/kg = 29.02 kg
Calculate the total daily dose of methylprednisolone needed: 7 mg/kg x 29.02 kg = 203.14 mg
Calculate the dose per administration: 203.14 mg / 2 = 101.57 mg
Calculate the volume of methylprednisolone to administer per dose: 101.57 mg / 20 mg/mL = 5.0785 mL
Round to the nearest tenth: 5.0785 mL rounded to the nearest tenth is 5.1 mL.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.5"]
Explanation
Determine the desired dosage:
The nurse needs to administer 125 mg of valproic acid.
Determine the volume per dose:
The valproic acid syrup contains 250 mg per 5 mL.
The nurse needs to administer 125 mg per dose.
To find the volume per dose:
250 mg / 5 mL = 125 mg / x mL
Cross-multiplying gives us:
250x = 625
Dividing both sides by 250, we get:
x = 2.5 mL
Correct Answer is ["1.9"]
Explanation
Determine the desired dosage:
The nurse needs to administer 187 mg of isoniazid.
Determine the volume per dose:
The isoniazid injection contains 100 mg per 1 mL.
The nurse needs to administer 187 mg per dose.
To find the volume per dose, we can set up a proportion:
100 mg / 1 mL = 187 mg / x mL
Cross-multiplying gives us:
100x = 187
Dividing both sides by 100, we get:
x = 1.87 mL
Round the answer to the nearest tenth:
Rounding 1.87 to the nearest tenth gives us 1.9 mL.
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