A physician orders Clindamycin phosphate 0.3 g in 50 mL NS to be administered IV over 30 minutes. The label states Clindamycin phosphate is 150 mg/mL. How many milliliters of medication should be prepared?

To determine how many milliliters of Clindamycin phosphate are needed to achieve a dose of 0.3 g, it is essential to convert grams to milligrams. Since 1 g equals 1000 mg, 0.3 g converts to 300 mg (0.3 g × 1000 mg/g). Given that the concentration of Clindamycin phosphate is 150 mg/mL, the next step is to calculate the volume required to obtain 300 mg.

Using the formula:

Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)

Substituting the values:

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

This calculation shows that to administer 0.3 g (or 300 mg) of Clindamycin phosphate, 2 mL of the medication needs to be prepared.