High School

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The doctor orders an IV weight-based medication to be infused at 4 mcg/kg/min. The patient weighs 198 lbs. You are supplied with a bag of the IV medication that reads 250 mg/250 ml. How many ml/hr will you administer?

Answer :

To administer the IV medication to a patient weighing 198 lbs, you need to set the rate at 21.6 ml/hr based on the weight-based calculation.

The question: The doctor orders an IV weight-based medication to be infused at 4 mcg/kg/min for a patient weighing 198 lbs. You have a bag of IV medication at 250mg/250 ml. How many ml/hr will you administer?

Answer:

  1. Convert patient weight to kg: 198 lbs ÷ 2.2 = 90 kg.
  2. Calculate medication rate: 4 mcg/kg/min × 90 kg = 360 mcg/min.
  3. Convert medication bag info to ml/hr: 250 mg/250 ml bag contains 1 mg/ml. Therefore, 1 mg/min = 60 ml/hr. So, 360 mcg/min = 0.36 mg/min = 0.36 ml/min = 21.6 ml/hr.

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