Calculating Dosage for IV Medication

A nurse is preparing an intravenous (IV) medication with an order to administer 250 mg of a drug that has a concentration of 100 mg/mL. The nurse also has a safety protocol in place that dictates a maximum dose per injection of 4 mL for this specific medication. In order to ensure that the patient receives the correct dosage while adhering to the safety protocol, how many milliliters of the medication should the nurse draw up for administration?