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A provider prescribes heparin 21 units/kg/hr by continuous IV infusion for a client who weighs 93 kg. You have 25,000 units of heparin in 500 mL of D5.

How many mL/hr should the nurse set the pump to? ____ mL/hr

Answer :

To administer the prescribed heparin dose of 21 units/kg/hr for a 93 kg patient, the nurse should set the infusion pump to 39.06 mL/hr, based on a heparin solution concentration of 50 units/mL.

To calculate the IV infusion rate, we use the doctor's prescription, the patient's weight, and the concentration of the heparin solution available.

First, determine the total heparin dosage required per hour using the prescribed dosage of 21 units/kg/hr for a 93 kg patient: 21 units/kg/hr *93 kg = 1953 units/hr.

The available heparin solution has 25,000 units in 500 mL. This gives a concentration of 50 units/mL (25000 units / 500 mL).

To find out how many mL/hr the nurse should set the IV pump to deliver the required 1953 units/hr at a concentration of 50 units/mL we divide the total units per hour by the concentration:

1953 units/hr \/ 50 units/mL = 39.06 mL/hr.

The nurse should set the infusion pump to 39.06 mL/hr to deliver the prescribed amount of heparin.

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