1)Calculate the number of mL to administer with each dose. Round your answer to the nearest tenth.
Ordered: Chloroquine hydrochloride 300 mg IM daily
On hand: Chloroquine hydrocholride 200 mg/mL 5mL Multi-Dose Vial
I came up with 7.5, but I think it is wrong.
200x=300 X 5
x = 1500 divided by 200 (1500/200)
x = 7.5cc (you're right!!)
2)Calculate the number of mL to administer with each dose. Round your answer to the nearest tenth.
Ordered: Epoetin Alfa 2500 units sub-q tiw
On hand: Epoetin Alfa 4000 units/mL Single-Dose Vial
I came up with 1.5ml
4000units : 1 cc :: 2500units : ?cc (also known as x)
4000x = 2500
x = 4000/2500
x=1.6cc No need to round, the .6 IS in the tenths spot
Here's info about rounding: http://www.321know.com/g44c_wx1.htm
It's a kids site, but I used it this school year to help my son figure it out when he just could not get it from the book or from me!
"Rounding decimals is very similar to rounding other numbers. If the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change.
For example, rounding 0.843 to the nearest tenth would give 0.8.
If the hundredths and thousandths places are fifty or more, the tenths place is increased by one. The decimal 0.866 rounded to the nearest tenth is 0.9"