A 66-year-old female with a history of hypertension and diab…

A 66-year-old female with a history of hypertension and diabetes presents with substernal chest pressure of 2 hours’ duration. Her blood pressure is 140/90 mm Hg, her pulse is 100 beats/min and irregular, her respirations are 22 breaths/min, and her oxygen saturation is 92%. The patient does not have prescribed nitroglycerin, but her husband does. You should: