You need to prepare a heparin IV bag of 25,000 units in D5W 500mL. Your pharmacy usually uses 2.5mL of 10,000iu/mL to make these bags, but the only available strength of heparin in your pharmacy is 10,000iu/10mL. What volume of heparin needs to be added to the IV bag?

Question

Harry Carlson

Biology

1 June, 08:58

You need to prepare a heparin IV bag of 25,000 units in D5W 500mL. Your pharmacy usually uses 2.5mL of 10,000iu/mL to make these bags, but the only available strength of heparin in your pharmacy is 10,000iu/10mL. What volume of heparin needs to be added to the IV bag?

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Answers (1)

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Gisselle Hart · Answer 1

25 ml of heparin 1V will be added in the bag.

Explanation:

Number of units per ml = 25000/500

C1 = 50 units/ml, V1 = 500ml

10,000 iu / 10ml

Number of units per ml available = 10000/10

C 2 = 1000 units/ml

so for 25000 units to be in the solution

25000/1000

from the formula C1V1=C2V2 to make dilutions

50*500 = 1000 * V2

V2 = 50*500/1000

= 25 ml

25 ml of heparin will be needed to add in the IV bag.