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.)

Steps to solve: Convert the client's weight from pounds to kilograms: Weight (kg) = Weight (pounds) / 2.20462 Weight (kg) = 132 pounds / 2.20462 ≈ 59.87 kg (round to nearest tenth for medication calculation) Calculate the total dantrolene dosage based on the prescribed dosage per kilogram: Dosage (mg) = Weight (kg) x Dosage per kg Dosage (mg) = 59.87 kg x 1.5 mg/kg Dosage (mg) ≈ 89.8 (round to nearest tenth) Determine the concentration of dantrolene after reconstitution: Concentration = 50 mg/mL (given on the vial label) Calculate the volume of the solution to administer: Volume (mL) = Dosage (mg) / Concentration (mg/mL) Volume (mL) = 89.8 mg / 50 mg/mL Volume (mL) ≈ 1.79 mL (round to one decimal place)= 1.8mL