RT Book, Section A1 Wald, David A. A2 Cydulka, Rita K. A2 Fitch, Michael T. A2 Joing, Scott A. A2 Wang, Vincent J. A2 Cline, David M. A2 Ma, O. John SR Print(0) ID 1143139946 T1 Low-Probability Acute Coronary Syndrome T2 Tintinalli's Emergency Medicine Manual, 8e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071837026 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1143139946 RD 2024/10/09 AB Patients presenting to the emergency department (ED) with chest pain or other symptoms suggesting possible coronary ischemia should be risk-stratified based on the probability of having an acute coronary syndrome (ACS). Patients with a low-probability ACS have no objective evidence of acute coronary ischemia or infarction. These patients do not have characteristic ST-segment elevation or depression on an electrocardiogram (ECG), and initial cardiac biomarkers are not elevated.