how many mg in a g
1000
how many mcg in a mg
1000
how many ng in a mcg
1000
how do you calculate volume
dose/conc
what dilution is 1 part drug to 9 part solution
1 in 10
NOT 1 in 9- add all parts
what does a % drug mean
ALWAYS grams in a 100ml
how do you calculate rate
dose per time/ conc
OR dose/time
what does 1% hydrocortisone cream mean
1gram per 100ml