A client with edema receives a prescription for a one time dose of furosemide 20 mg IV. The medication is avialable in a 10 mg/ml. vial. How many ml. should the nurse administer? (Enter numerical value only.)

Calculation: Desired dose = 20 mg. Available concentration = 10 mg/ml. Calculate the volume to administer in milliliters (mL). Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL) = 20 mg / 10 mg/mL = 2 mL.