A client who weighs 176 pounds receives a prescription for lorazepam 0.05 mg/kg intramuscularly (IM) 2 hours before a scheduled procedure. The medication is available in 4 mg/ml. vial. How many mL should the nurse administer? (Enter numerical value only.)

Convert the client's weight from pounds to kilograms: Weight (kg) = Weight (pounds) / 2.2 pounds/kg = 176 pounds / 2.2 pounds/kg = 80 kg Calculate the prescribed dose in milligrams: Dose (mg) = Prescribed dose (mg/kg) x Client's weight (kg) = 0.05 mg/kg x 80 kg = 4 mg Calculate the volume to administer in mL: Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL) = 4 mg / 4 mg/mL = 1 mL