Question

The doctor finally figures out what is wrong with you and prescribes a medicine that will return you to full health. the order is for 25 mg of the medicine. the nurse walks in with a liquid and you ask to see the bottle. the bottle says 100 mg of medicine per 15 ml of liquid. how many milliliters should she give you? would she need to bring that to you in a dropper, a little cup, a glass, or a large bottle?

Answer 1

The drug solution has a concentration of 100 mg/15 mL and the needed dose is 25 mg. There should be computation of the required volume. The computation is as follows:

Volume = (25 mg)/(100 mg/15 mL)

Volume = (25 mg)/(6.67 mg/mL)

Volume = 3.75 mL

The patient needs to take 3.75 mL of the drug with a concentration of 100 mg/15 mL to get a dose of 25 mg. A measuring cup (or a little cup) may be used as these measuring cups are calibrated to match volume dosages.