A client with neuroleptic malignant syndrome receives a prescription for dantrolene 1.5 mg/kg IV. The client weighs 198 pounds. The label on 250 mg vial reads, "Reconstitute with 5 mL sterile water for injection, USP. Reconstitution yields 50 mg/mL" How many mg should the nurse administer? (Enter numeric value only.)

Here's how to calculate the total dantrolene dosage (mg) the nurse should administer: 1. Convert client weight from pounds to kilograms: Weight (kg) = Weight (lb) / 2.2 Weight (kg) = 198 lb / 2.2 Weight (kg) = 90 kg (approximately) 2. Calculate the total dantrolene dose based on weight and prescribed dosage: Dose (mg) = Dose (mg/kg) x Weight (kg) Dose (mg) = 1.5 mg/kg x 90 kg Dose (mg) = 135 mg Therefore, the nurse should administer 135 mg of dantrolene.