Question

Order: 0.5 g IM. Supply: vial of powder labeled 1 g. Dilute with 2.5 mL sterile water to yield 1 g/3 mL. What is the quantity to administer? _____mL.

Answer 1

The quantity to administer for the order of 0.5 g IM, with a medication concentration of 1 g/3 mL, is 1.5 mL.

Step-by-step explanation:

To calculate the quantity to administer for the prescribed order of 0.5 g IM, we use the provided medication concentration of 1 g/3 mL after reconstitution. Since the order is for 0.5 g and our concentration is 1 g in 3 mL, we need to administer half the volume that contains 1 g, because the amount needed is half a gram.

Therefore, to get 0.5 g, we need: (0.5 g / 1 g) × 3 mL = 1.5 mL.

The quantity to administer is 1.5 mL.