A doctor orders 3mg of compazine. If the stock solution is 1.5% how many milliliters are administered to the patient

Answer 1

Hi Arnetta,

I am happy to help you with this problem.

If the stock is 1.5% of compazine, that means that there is=1.5 grams of compazine per 100mLs of fluid. Represented numerically:

--- 1.5g/100mL = 015g/1 mL or 0.015g/mL or 0.015 g of compazine / mL

-- 0.015g/mL = 15mg/mL

Next, we need to solve for: 15 mg (of compazine) / mL = 3 mg (of compazine)/ X mLs

--When we cross-multiple, this is: 15X = 3

--When we solve for X, we get X = 3/15 or 0.20 mL

So, the patient should be administered 0.20 mL