Unless stated otherwise, IV pumps are calibrated in whole mL/hr. Nitroglycerin has been ordered to titrate at 10 mcg/min to 50 mcg/min, and the rate should be increased by 10 mcg/min for chest pain. The solution contains 50 mg of nitroglycerin in 250mL D5W. Calculate the mcg/min dose if the IV is infusing at a rate of 12 mL/g. _____ mcg/min