A client with neuroleptic malignant syndrome receives a prescription for dantrolene 1.5 mg/kg IV. The client weighs 132 pounds. The label on 250 mg vial reads, "Reconstitute with 5 mL sterile water for injection, USP. Reconstitution yields 50 mg/mL How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Calculation: Convert the client's weight from pounds to kilograms: Weight (kg) = Weight (pounds) / 2.2 pounds/kg = 132 pounds / 2.2 pounds/kg = 60 kg Calculate the prescribed dose in milligrams: Dose (mg) = Prescribed dose (mg/kg) x Client's weight (kg) = 1.5 mg/kg x 60 kg = 90 mg Calculate the volume to administer in mL: Volume to administer (mL) = Desired dose (mg) / Available concentration (mg/mL) = 90 mg / 50 mg/mL = 1.8 mL