Final answer:
To calculate the IV infusion rate for a patient weighing 87 kg with a heparin prescription of 20 units/kg/hr and a concentration of 100 units/mL, the patient should receive 17.4 mL of heparin per hour.
Step-by-step explanation:
The question asks how to calculate the IV infusion rate in mL/hr, given an order for heparin at a dosage of 20 units/kg/hr for a patient who weighs 87 kg. The heparin supply is at a concentration of 100 units/mL.
To solve this, we must first calculate the total units of heparin needed per hour for the patient: 20 units/kg/hr × 87 kg = 1740 units/hr.
Next, we determine how many mL of the supply is needed to deliver 1740 units, using the supply concentration: 1740 units ÷ 100 units/mL = 17.4 mL/hr.
Thus, the patient should be administered 17.4 mL/hr of the heparin solution.