A health care provider prescribes 50 mg of a drug. The drug is only available in a 20 mL vial that contains 20 mg/mL of the drug. How much solution must the nurse administer for each dose?

To calculate the amount of solution needed for each dose, we need to use the formula: Amount of solution (mL) = Dose (mg) / Concentration (mg/mL) Plugging in the given values, we get: Amount of solution (mL) = 50 mg / 20 mg/mL Simplifying, we get: Amount of solution (mL) = 2.5 mL Therefore, the nurse must administer 2.5 mL of the solution for each dose.