RT Book, Section A1 Chyu, Kuang-Yuh A1 Shah, Prediman K. A2 Crawford, Michael H. SR Print(0) ID 1198111614 T1 Unstable Angina/Non-ST Elevation Myocardial Infarction T2 Current Diagnosis & Treatment: Cardiology, 6e YR 2023 FD 2023 PB McGraw Hill Education PP New York, NY SN 9781264643578 LK accesscardiology.mhmedical.com/content.aspx?aid=1198111614 RD 2024/10/13 AB ESSENTIALS OF DIAGNOSISNew or worsening symptoms (angina, pulmonary edema) or signs (electrocardiographic [ECG] changes) of myocardial ischemia.Absence or mild elevation of cardiac enzymes (troponin I or T) without prolonged ST-segment elevation on ECG.Unstable angina and non-ST elevation myocardial infarction (MI) (USA/NSTEMI) are closely related in pathogenesis and clinical presentation and are therefore discussed as one entity in this chapter.