Acute coronary syndrome (ACS) is a clinical syndrome that includes a heterogeneous group of patients with symptoms typical of acute myocardial ischemia, but without the traditional evidence on an electrocardiogram (ECG) of ST-segment elevation myocardial infarction (STEMI) [e.g. image below]. Within the clinical diagnosis of ACS, the difference between unstable angina (UA) and non-ST elevation myocardial Infarction (NSTEMI) is determined by the presence of positive biomarkers (myocardial...