The nurse prepares to administer 35mg/hr of intravenous aminophylline. The pharmacy mixes 350mg of aminophylline in 500mL D5W. At what rate should the nurse infuse the solution? Round to the nearest whole number.

Step 1: Determine concentration of the solution Concentration (mg/mL) = Total drug ÷ Total volume = 350 ÷ 500 = 0.7 mg/mL Step 2: Use the formula mL/hour = Desired dose ÷ Concentration = 35 ÷ 0.7 Step 3: Calculate = 50 mL/hour Final Answer: 50