Introduction Chest pain is one of the most common complaints in emergency departments, and internal medicine and cardiology clinics. Patients’ comorbidities and the clinical characterization of chest pain are cornerstones to guide symptom differentiation. Information about pain intensity, duration, localization, changes with posture/movement, and its reaction to nitroglycerin helps diagnose cardiac chest pain. Typical angina pectoris is the presence of substernal chest pain or discomfort provoked by exertion or emotional stress, and is relieved by rest and nitroglycerin. Angina pectoris […]