The nurse is preparing a dose of ketorolac 12 mg IV using a 1 mL vial containing 30 mg/mL. How many mL should the nurse administer? (Enter numerical value only.)

Here's how to calculate the volume (mL) of ketorolac the nurse should administer: 1. We know: Dose of ketorolac to administer: 12 mg (given) Concentration of ketorolac in the vial: 30 mg/mL (given) 2. We need to find: Volume to administer (mL) 3. Calculation: Volume (mL) = Dose (mg) / Concentration (mg/mL) Volume (mL) = 12 mg / 30 mg/mL Volume (mL) = 0.4 mL (round to one decimal place as appropriate for medication administration) Therefore, the nurse should administer 0.4 mL of ketorolac.