Mannitol 25% osmotic diuretic solution 0.5 g/kg intravenous (IV) is ordered for a client who weighs 172 pounds over 30 minutes. Available supply is 25 g/100 mL. What rate would the nurse set the intravenous pump? Round to the nearest tenths place. Record numerical answers only.

Convert the client’s weight to kilograms Weight = 172 ÷ 2.2 ≈ 78.2 kg Calculate the ordered dose in grams Dose = 0.5 × 78.2 Dose = 39.1 g Identify the concentration Available: 25 g / 100 mL Calculate the required volume Volume (mL) = (Ordered Dose ÷ Concentration) × 100 Volume = (39.1 ÷ 25) × 100 Volume = 1.564 × 100 Volume = 156.4 mL Convert time to hours and calculate rate Time: 30 minutes = 0.5 hr Rate (mL/hr) = 156.4 ÷ 0.5 Rate = 312.8 mL/hr Round to the nearest tenth = 312.8 mL/hr