A physician orders NS with 20,000 Units Heparin/Liter @ 2500 Units/hr. You have available Heparin 5,000 Units/ml in a 5 ml vial. How many ml of heparin will be needed to prepare one liter of the solution?

A. 5 ml B. 20 ml C. 4 ml D. 25 ml

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Expert Solution

Desired dose (dose ordered)= 20,000 IU/ liter

Available dose( dose in hand)= 5000/mL

Quantity (available concentration of drug)= 1mL

Formula for dosage calculation is

D (desired dose) x Q (quantity) = dosage

H ( dose in hand)

20,000 IU x 1 mL = 4 mL

5000 IU

4 mL heparin contains 20,000 IU

Thus the answer is C. 4 mL

Nightingale answered 1 year ago

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