In total, ACS presentations account for over 2 million annual hospital admissions in the United States. Almost 1.4 million people suffer an ACS each year, of which 55% are new events, 31% are recurrent events, and 14% are silent events. Of all diagnosed MIs, approximately 30% are STEMI and 70% are NSTE-ACS events. Despite recent declines in associated mortality, coronary artery disease causes one out of every five deaths in the United States. Notably, half of MI-related deaths occur within the first hour, primarily due to ventricular dysrhythmias. Therefore, the presentation of ACS challenges the clinician to rapidly integrate key aspects of the history, physical examination, and diagnostic tests in order to diagnose correctly and manage effectively this potentially life-threatening condition.