When ordered to administer 750mg of Vancomycin, how much of a reconstituted solution containing 500mg/mL should be given?

To determine how much of the reconstituted solution is needed to administer a total of 750 mg of Vancomycin when the solution concentration is 500 mg/mL, you can use the formula:

Amount to administer (mL) = Desired dose (mg) / Concentration (mg/mL).

In this case, you want to calculate:

Amount to administer = 750 mg / 500 mg/mL = 1.5 mL.

This means that to achieve a dosage of 750 mg, you need to withdraw 1.5 mL of the reconstituted solution, which contains the required amount of medication at the specified concentration. This aligns perfectly with the answer choice provided. The correct calculation ensures that the patient receives the exact prescribed dose, which is critical in medication administration to avoid underdosing or overdosing.