Hesi rn dosage calculation proctored exam
Calculation
The healthcare provider prescribes epinephrine 0.01 mg/kg intramuscularly (IM) for a child with asthma who weighs 55 pounds. The available medication is labeled, “1 mg/mL.” Based on the child’s weight, how many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest hundredth.)
mL
Explanation & Rationale
Calculation: Convert the child's weight from pounds to kilograms: Weight (kg) = Weight (pounds) / 2.2 pounds/kg = 55 pounds / 2.2 pounds/kg = 25 kg Calculate the prescribed dose in milligrams: Dose (mg) = Prescribed dose (mg/kg) x Child's weight (kg) = 0.01 mg/kg x 25 kg = 0.25 mg Calculate the volume to administer in mL: Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL) = 0.25 mg / 1 mg/mL = 0.25 mL Rounding to the nearest hundredth, = 0.25 mL.
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