How to you calculate dosage based on body weight?

Question

are there any sites to go to that show step by step how to do pharmacology math

Answer 1

x units per lb.  Multiply this by the number of pounds and you have the amount

Let's say 2 mg per lb in a 150 lb person.

2mg/lb * 150 lb = 300 mg

I'm sure if you check google you'll find plenty of sites.

Answer 2

The following is a useful dosage calculation by weight tutorial:

http://www.dosagehelp.com/dosage_by_weig...

Along with explaining how to do the problems, there are example problems and practice questions for you to do.

Answer 3

http://classes.kumc.edu/son/nurs420/clin...

Answer 4

We never use pounds in medicine - it's always kilograms.  

The first thing you need to do is convert the patient's weight from pounds to kg.  (Divide by 2.2)

Then you multiply the dose (given in dose per kg) by the weight in kg.

Example:  Pt weighs 154 pounds.

Divide by 2.2 = 70 kg

Dose of 2.5 mg/kg:  2.5 x 70 = 175 mg