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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?

Respuesta :

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.

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