If a nurse administers a 100 mL drug with a concentration of 25 mg/mL, how much drug is given?

To determine the total amount of drug administered, you can use the formula that relates the volume of the solution, the concentration of the drug, and the amount of drug. The formula is:

Total Amount of Drug (mg) = Volume (mL) × Concentration (mg/mL)

In this case, you have a volume of 100 mL and a concentration of 25 mg/mL. By substituting the values into the formula:

Total Amount of Drug = 100 mL × 25 mg/mL = 2500 mg

This calculation shows that the nurse administers 2500 mg of the drug when giving a 100 mL solution at a concentration of 25 mg/mL. Thus, the correct answer indicates the total drug dosage provided to the patient.