# Grain problems

1. Does anyone know of a helpful website for drug calculations (mainly grain problems)? I am attempting my first test on friday and I am a little apprhensive about the grain problems since there weren't very many examples in our workbook. Can anyone help me out?
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3. there are a number of tutorials as well as links to sites that have practice problems on this sticky thread. there are also a number of problems that have been worked out on the thread as well:
4. Quote from llwilli1
Does anyone know of a helpful website for drug calculations (mainly grain problems)? I am attempting my first test on friday and I am a little apprhensive about the grain problems since there weren't very many examples in our workbook. Can anyone help me out?

The link Daytonite provided is excellent. Also when thinking Grains...just remember
1 grain = 60 mg
gr 1 = 60mg
gr 1/2 = 30mg
gr 1/4 = 15mg
and so on.

in a drug calc you would just convert and then proceed with the calculation.
I know if I saw let's say order for tylenol 1/2 gr. I would say 1/2 of 60 =30. so the ans is 30mg.
hope that helps

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