Question

a patient order is 20 milligrams of a drug available in stock is 40 milligrams in 1 milliliter of liquid how many milliliter should be administered

Answer 1

The patient needs 20 mg of a drug, if there are 40 mg of drug in 1 ml of liquid, then

`20mgdrug\cdot(1ml)/(40mgdrug)=0.5ml`

0.5ml of liquid should be administered