iv infusion

Nurses General Nursing

Published

infusing 100mg of ampicillin in 100ml over 45 minutes - what's the infusion rate...?

Specializes in Psych/CD/Medical/Emp Hlth/Staff ED.
Yes, god forbid they look to their textbook or instructor for help. Better to get the answer on the internet.

If textbooks and instructors were sufficient for every student then tutoring centers would not exist. It's hard enough for students who need help to ask for it, particularly nursing students, the last thing they need is to be harassed for simply asking a question.

If a student just wants the answers to their homework, it's not going to help them any on the test which is all that counts, so there is no disservice done in explaining how to come up with a homework answer.

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Specializes in ICU.
You can also think of it in terms of ratios with an unkown (x) to solve for: You need to infuse 100ml in 45 minutes (100ml per 45 minutes or 100/45) and you want to know how many mls that is for 60 minutes (x ml.'s per hour or x/60). You can solve for x by cross multiplying and dividing making sure you keep your ml's on the top and minutes on the bottom;

100..... x

----- = ------

45...... 60

(ignore the periods)

Cross multiply (100x60=600) and divide (600/45=133.33)

x=133.33 mls/60 minutes (or 2.2 ml/minute, just remember your IV pump is probably going to want the rate in ml's per hour)

60 * 100 = 6000 Then divide 6000/45=133.33.

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.

To calculate rate using hours

VOLUME

HOURS

= mL/hr

To calculate rate using minutes

VOLUME

(MINUTES / 60)

= mL/hr

YOU really need to do the math yourself. NOT knowing how WILL harm you in the future. There are amny sites on the web...goggle some...........nurseweek calculations are good as a previous poster stated:redbeathe

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Specializes in Emergency Department.

You have seen and hopefully know yourself, math is very important in school as well as in your career. I really like the book Math for Meds Dosages & Solutions 10th edition Anna M. Curren

ISBN-13: 978-1-4283-1095-7

ISBN-10: 1-4283-1095-9

The book has a CD that comes with it. The CD has tutorials, problem sets, and self-tests. I hope you are willing to take some advice from this thread. Everyone needs help from time to time, but they must also be proactive. I am not on a high horse or looking down on you just want to help :)

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Specializes in LTC.

I agree with others... ya gotta learn it on your own!!! Momma won't be there holding your hand when it's time for the show down!

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