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Order: Administer 500 units of heparin/hour. Pharmacy sends 25,000 units of heparin/L of normal saline. What...

Order: Administer 500 units of heparin/hour. Pharmacy sends 25,000 units of heparin/L of normal saline. What rate should be set on the infusion device?

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Expert Solution

Ordered dose of heparin = 500 units/ hr

Dose of heparin in hand = 25000 units/L

Let heparin infusion rate be X ml/ hr.

By ratio and proportion method :-

25000 units : 1000 ml :: 500units/ hr : X ml/hr

=> 25000 units/ 1000ml = (500units/hr)/ X ml/hr

=> X = (500 units/hr x 1000 ml) / 25000 units

=> X = 20 ml/hr

Hence, 20ml/hr should be set on infusion device.

Nightingale answered 2 years ago
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