RT Book, Section A1 Marshall, John P. A1 Rose, Jonathan A1 Shani, Jacob A2 Farcy, David A. A2 Chiu, William C. A2 Marshall, John P. A2 Osborn, Tiffany M. SR Print(0) ID 1135700615 T1 Acute Coronary Syndrome T2 Critical Care Emergency Medicine, 2e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071838764 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1135700615 RD 2024/10/07 AB Acute coronary syndrome (ACS) is not a single diagnosis but a spectrum of disease. It encompasses ST-segment elevation myocardial infarction (STEMI), non-ST-segment elevation myocardial infarction (NSTEMI), and unstable angina (UA). It is a disease process that, if unrecognized, imparts upon the patient profound morbidity, if not mortality. In fact, acute myocardial infarction is the leading cause of death in the United States, if not the entire developed world.1 For these reasons, ACS should be respected and treated expeditiously and aggressively.