A patient is prescribed an injection with 1.5 million units of a medication. The vial contains 3 million units in 5 mL. How much should the nurse draw up?

Identify the ordered dose and available concentration Ordered Dose: 1.5 million units Available: 3 million units in 5 mL Calculate the volume to administer Volume = (Ordered Dose ÷ Vial Dose) × Vial Volume Volume = (1,500,000 ÷ 3,000,000) × 5 Volume = 0.5 × 5 = 2.5 mL