RT Book, Section A1 Kathleen, A. Hosmer A1 Chadwick, D. Miller A2 Tintinalli, Judith E. A2 Stapczynski, J. Stephan A2 Ma, O. John A2 Yealy, Donald M. A2 Meckler, Garth D. A2 Cline, David M. SR Print(0) ID 1138229769 T1 Low-Probability Acute Coronary Syndrome T2 Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 8e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071794763 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1138229769 RD 2024/03/28 AB This chapter discusses the features of low-probability or possible acute coronary syndrome (ACS), which includes patients who have chest pain or another equivalent ischemic symptom but no objective evidence of acute coronary ischemia or infarction—that is, no characteristic ECG ST-segment elevation or depression and normal levels of cardiac markers. Patients with diagnostic ECG or cardiac marker levels or with other high-risk features are discussed in chapter 49, "Acute Coronary Syndromes."