# need hlep with D.A. on flow rates

1. I must not be understanding something.
This is my problem

a volume of 800 ml is to infuse in 8 hours with an electronic fusion pump.

how do you do a problem like this?
•

3. Convert the time in hours into the time in minutes.
4. so it would be
gtt

---
min

How many drips per minute is an infusion pump?
5. No it should be 800ml to infuse overa time of 480 minutes.

The drops per minute on a pump depends on the what the amount of fluid and for how long.
6. they had us to divide

800 ml. / 8 hr. to get 100 ml/hr for the flow rate
7. the problem states this
calculate the following flow rates
a volume of 800 ml is to infuse in 8 hours with an electronic fusion pump.

how do you set the problem up?
8. Total Volume X gtt factor
time of infusion

This is the forumla that you can use. The only problem is that I do not see a gtt factor in your problem.
9. Quote from tnstudentnurse

800 ml. / 8 hr. to get 100 ml/hr for the flow rate
That's the only way you can do it if no gtt factor is stated in the problem.
10. no gtt factor is stated in the problem.
11. Not arguing with any of you but we learned like this:

800 ml divided by 8 = 100

and pumps deliver 60 drops per min.

so it would be drops over time x ml 60gtt/480min. x 100 ml = 800ml

60 goes into 60 one time, and 60 goes into 480 eight times and multiply 100 by 8 to
get 800ml

I think this is what you were looking for???
12. flow rate = ml/hr

800ml/8hr = 100ml/hr = flow rate for electronic pump

If you are hanging by gravity and you need to convert to gtt/min, then you'll need the gtt factor of your tubing. Just say that it is 60 gtt/ml, then you'd do this if you are using diminsional analysis:

gtt/min= 60gtt/1ml x 100ml/1hr x 1hr/60min =6000/60 = 100gtt/min so your drip rate should be 100 drops per minute.