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Day Tripper · 21-07-2009, 09:03 PM

Word problems...

I could do these not too long ago but my brain has recently lost the ability. I'm trying to study for my National Certification or whatever.

If a physician orders 25% dextrose 1000 ml and all you have is 70% dextrose 1000 ml, how much 70% dextrose and how much sterile water will be used?

If 200 grams of dextrose is ordered using a 50% dextrose solution, how many ml are needed?

How much talc is needed for an order for 120 gm of the following compound:
nupercainal ointment 4%, zinc oxide 20%, talc 2%?

I know the exam is multiple choice but these questions come in the practice exams I have. I need to know how to do them and be able to understand them for that purpose. The books I have to reference aren't too clear and do not explain these sorts of things too well.

21-07-2009, 09:03 PM	#1
Day Tripper shannon Join Date: Mar 2004 Location: California I am currently:	Help for lame stuff? Word problems... I could do these not too long ago but my brain has recently lost the ability. I'm trying to study for my National Certification or whatever. If a physician orders 25% dextrose 1000 ml and all you have is 70% dextrose 1000 ml, how much 70% dextrose and how much sterile water will be used? If 200 grams of dextrose is ordered using a 50% dextrose solution, how many ml are needed? How much talc is needed for an order for 120 gm of the following compound: nupercainal ointment 4%, zinc oxide 20%, talc 2%? I know the exam is multiple choice but these questions come in the practice exams I have. I need to know how to do them and be able to understand them for that purpose. The books I have to reference aren't too clear and do not explain these sorts of things too well.