# Pharmacology calculations

1. Hi

I am in Pharmacology this semester. We have had a total of 3 quizes on various calculations this semester. The last quiz is going to be on Ped's and Critical Care Calculations. The text leaves a lot to be desired on explaining the cals. There is several different methods to use to get to answer. I was wondering if someone would have advice on a method that works well for them in doing these kind of calculations....

Thank you.
Carla
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Joined: May '05; Posts: 188; Likes: 7
not presently employed

3. I took 5 general calc exams. Which formula are you having a problem with?? Is it converting from pounds to kilo and calculating the doasge from there??
4. Here is an example of one of problems:
Ordered: Humulin regular U-100 7 units/hr. The IV Solution has 50 units of Humulin regular insulin in 250 ml of normal saline. At what rate in ml/hr should iv infuse?

I was just wondering if someone knew of good nursing website regarding these kind of caluations. Thank you.
5. I found an excellent program that runs in a Windows environment. It is called Calculating drug dosages. I paid about 45 dollars. purchased it at Amazon.com . it is by Sandra Luz Marinez de Castillo and Maryanne Werner-McCullough.

The program allows you to select the method for solving the equation, then walks you through how to solve it. I passed the math test with 100% the first time.
6. Quote from carlarenee02
Here is an example of one of problems:
Ordered: Humulin regular U-100 7 units/hr. The IV Solution has 50 units of Humulin regular insulin in 250 ml of normal saline. At what rate in ml/hr should iv infuse?

I was just wondering if someone knew of good nursing website regarding these kind of caluations. Thank you.
35 mls/hrs
7. Quote from urany2
35 mls/hrs
you don't need a website, just go with what info you have and what you need.

(250ml / 50 units) * 7 U/hr = 35 ml/hr
8. hi, urany2, and welcome to allnurses!

this particular thread is two years old! if you are looking for help with dosage calculations, check out this thread in the nursing student assistance forum: http://allnurses.com/forums/f205/dos...ons-88867.html
9. urany2 wasn't asking the question.

They were answering it, and apparently as I often do....didn't notice the thread was from years ago haha.