What is the total volume in mL for a prescription of 300 mg if the concentration is 150 mg/mL?

To determine the total volume in milliliters for a prescription of 300 mg at a concentration of 150 mg/mL, you can use the formula:

Volume (mL) = Amount of Drug (mg) / Concentration (mg/mL).

Plugging in the values:

Volume (mL) = 300 mg / 150 mg/mL = 2 mL.

This calculation shows that to achieve a dose of 300 mg at a concentration of 150 mg/mL, 2 mL of solution is needed. This method of calculating volume is essential in pharmacy practice, enabling accurate dosing based on the given concentration of the drug. Understanding the relationship between drug amount, concentration, and volume is fundamental for pharmacy technicians in dispensing medications correctly.