Nitroglycerin 30 mcg/minute is prescribed for a client who is admitted with chest pain. Nitroglycerin 100 mg is dispensed in a solution of 250 mL of D5W. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

To calculate the infusion rate, we need to use the formula: Infusion rate (mL/h) = Dose (mcg/min) x Volume (mL) / Concentration (mcg) First, we need to calculate the concentration of nitroglycerin in the solution by dividing the total amount by the total volume. In this case, it is 100 mg / 250 mL. Since 1 mg is equal to 1,000 mcg, we need to multiply the concentration by 1,000 to get the same units as the dose. In this case, it is 100,000 mcg / 250 mL. Plugging in the given values, we get: Infusion rate (mL/h) = 30 mcg/min x 250 mL / 100,000 mcg Simplifying, we get: Infusion rate (mL/h) = 0.075 mL/min To convert minutes to hours, we need to multiply by 60. In this case, it is 0.075 mL/min x 60 min. Simplifying, we get: Infusion rate (mL/h) = 4.5 mL/h Rounding to the nearest tenth, we get: Infusion rate (mL/h) = 4.5 mL/h