A patient is prescribed 0.5 g of a medication. How many milligrams is this?

To convert grams to milligrams, it's important to remember the relationship between these two units of measurement. One gram is equal to 1,000 milligrams.

In this case, the prescription is for 0.5 grams. To convert to milligrams, you multiply the number of grams by 1,000. Therefore:

0.5 g × 1,000 mg/g = 500 mg.

This calculation shows that the correct quantity in milligrams is indeed 500 mg, corresponding to the prescribed amount of 0.5 g. Understanding these conversions is crucial in pharmacy to ensure accurate dosing for patients.