A doctor orders 5 mg of compazine, which is used to treat nausea, vertigo, and migraine headaches. If the stock solution is 2.0 % (m/v), how many milliliters are administered to the patient?

Answer 1

2% = 2g/100 ml = 0.02 g/ml = 20 mg/ml

5 mg x 1 ml/20 mg = 0.25 ml should be administered