A patient needs to be given exactly 500 mL
of a 15% (w/v) intravenous glucose solution. The stock solution is
55% (w/v). How many milliliters of the stock solution are needed to
prepare the fluid for the IV bag?
A patient needs to be given exactly 500 mL of a 15% (w/v) intravenous glucose solution. The stock solution is 55% (w/v). How many milliliters of the stock solution are needed to prepare the fluid for the IV bag?
Homework Answers
We can use the equation-
V1S1 = V2S2
V1 = ? The volume of stock solution,
S1 = 55% (w/v) is the strength.
V2 = 500 mL
S2 = 15% (w/v)
so, V1 = V2S2/S1 = 500*15/55 mL = 136.36 mL
136.36 mL of the stock solution are needed to prepare the fluid for the IV bag.
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