IV calculation word problem

by janice
(vancouver, canada)

heparin 25000 U in 250 ml D5W is running through an administration set delivering 60 drops/ml. the flow rate require to deliver a heparin dose of 15 U/min is:

a 0.9 dps/min
b 54 dps/min
c 9 dps/min
d 90 dps/min

can u show me how to get the answer.

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IV calculation word problem

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IV calculations answer
by: Anonymous

heparin 25000 U in 250 ml D5W is running through an administration set delivering 60 drops/ml. the flow rate require to deliver a heparin dose of 15 U/min is:

a 0.9 dps/min
b 54 dps/min
c 9 dps/min
d 90 dps/min

250ml/25000uX60gtts/mlX15u/min=9gtts/min

How ?
by: Anonymous

I still don't understand how this is solved. Why did you set the problem up this way? Thanks for any extra information.

Answer
by: Anonymous

gtt= 60gtts * 250mL * 15units =
--- -- --- ---
min= mL 25000units min

Cross out ml and units and you will have gtts and mins. That is what they are looking for.
Do multipying across top with Numerators, then multiply across bottom with denominators. Answer will be 225000
------
2500 This is division, your answer should be 90, the answer will be 90 gtts/min


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