Table 1.

Characteristics of coronary artery disease (CAD) symptoms, modified from [17].

Classification	Characteristics
Typical angina	Constricting sensation in front of chest or shoulder, neck, jaw or arm. Symptoms relieved by nitrates or rest ≤ 5 min. Triggered by physical exertion.
Atypical angina	Meets only two of the characteristics above.
Non-anginal chest pain	Meets none or just one of the characteristics above.

CAD may result in stable angina, unstable angina, ST-elevation myocardial infarction (MI) or non ST-elevation myocardial infarction.