Q. A 62-year-old male is brought to the emergency department by his wife. He is a farmer, and developed a “twinge” in his chest a few hours ago. She reports that he refused to come to the hospital at that time, and continued shoveling snow. He insisted on staying at home until he collapsed on the floor approximately 1 hour ago. Even then, he wanted to stay home and rest, but his wife insisted on bringing him to the emergency department. He states the pain is almost gone, and that his wife is “making a fuss” about nothing. The patient smokes two packs of cigarettes per day, and drinks “a couple of beers” every evening. He does not take any medications and does not see a doctor regularly. On physical examination, he is sweating (diaphoretic), and has vomited twice since coming into the emergency department. His blood pressure is 160/100 mm Hg, heart rate 120/min, respiratory rate 20/min, oxygen saturation is 94 percent, and temperature is 37.2 degrees Celsius (98.9 degrees Fahrenheit). As you arrived to see the patient, an electrocardiogram (EKG) was just being completed by a technician (see below). Given the history and physical examination findings, what is the next best step in the management of this patient?