Nur 404 maternal newborn exam (examsoft exam) ( 54 Questions)
The nurse is preparing diphenhydramine for nausea in a pediatric patient. The physician ordered 6.25 mg/kg intravenous push every six hours. The patient weighs 38 pounds, and the concentration of the medication is 50 mg/mL. How many mL will the nurse administer to the patient? Round to the nearest tenths place. Record numerical answer only.
Correct Answer: 2.2
Convert the patient's weight from pounds (lb) to kilograms (kg).
Weight in kg = 38 lb / 2.2 lb/kg
= 17.2727 kg.
Calculate the total desired dose in milligrams (mg).
Desired dose (mg) = Desired dose (mg/kg) × Weight (kg)
= 6.25 mg/kg × 17.2727 kg
= 107.954 mg.
Available concentration of the medication = 50 mg/mL.
Calculate the volume in milliliters (mL) to administer.
Volume (mL) = Desired dose (mg) / Available concentration (mg/mL)
= 107.954 mg / 50 mg/mL
= 2.15908 mL.
Round the answer to the nearest tenths place.
= 2.2 mL.
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