The physician prescribes the administration of 180 mg of a drug. If the drug is available in 1 grain tablets, how many tablets should be given to the patient?

Question

Quizplus · Accepted Answer

One grain is approximately equal to 64.8 milligrams. Therefore, to administer 180 mg of the drug, it would require $ \frac{180 \, \text{mg}}{64.8 \, \text{mg/grain}} \approx 2.78 $ grains. Since you can't give a fraction of a tablet, the closest whole number of tablets that would be given is 3 tablets.

The Physician Prescribes the Administration of 180 Mg of a Drug