Abnormality of cardiovascular system electrophysiology +
Acute coronary syndrome +
The term acute coronary syndrome (ACS) refers to any group of clinical symptoms compatible with acute myocardial ischemia and includes unstable angina (UA), non-ST-segment elevation myocardial infarction (NSTEMI), and ST-segment elevation myocardial infarction (STEMI).
Angina pectoris
Cardiac tamponade
Chronotropic incompetence
Congestive heart failure +
Failure to elevate ammonia on ischemic exercise
Failure to increase oxygen saturation on hyperoxia test