Directions: Determine the normal dosage range to the nearest tenth. State your course of action
An IV medication of 50 mcg in 200 mL is ordered to infuse over 2 hours. The normal dosage range is 1.5 to 3 mcg/kg/hr. The child weighs 5.7 kg. Determine the dosage range per hour. Determine whether the dosage ordered is within normal limits. State your course of action: ______________________________
ANS:
Calculate the hourly dosage range:
1.5 mcg/kg/hr × 5.7 kg = 8.5 mcg/hr
3 mcg/kg/hr × 5.7 kg = 17.1 mcg/hr
Calculate the dosage infusing per hour.
50 mcg ÷ 2 hr = 25 mcg/hr
The dosage is 25 mcg/hr. It is greater than the safe range of 8.6 to 17.1 mcg/hr. Notify the prescriber.
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