pediatric client. The child weighs 80 pounds. Available is promethazine 40mg/5ml. How many mL should the nurse administer? (Round to the nearest tenth. Do not use a trailing zero.)

To determine the correct dosage, let’s follow these steps: Convert the child’s weight from pounds to kilograms: 1 pound = 0.453592 kilograms 80 pounds × 0.453592 = 36.3 kilograms Calculate the total dose in milligrams (mg): 1.5 mg/kg × 36.3 kg = 54.45 mg Determine the volume in milliliters (mL) to administer: Available concentration: 40 mg/5 mL Using the formula: (Desired dose / Available dose) × Volume (54.45 mg / 40 mg) × 5 mL = 6.8 mL