<prompt> Answer this question truthfullyWhat are the criteria used to diagnose ST-elevation myocardial infarction?  <response>: <reason> Five types of MI are now recognized and classified as follows: Type 1: Spontaneous myocardial infarction related to ischemia due to a primary coronary event, such as plaque erosion andor rupture, fissuring, or dissection.Type 2: Myocardial infarction secondary to ischemia due to an imbalance of O 2 supply and demand, as from coronary spasm or embolism, anemia, arrhythmias, hypertension, or hypotensionType 3: Sudden unexpected cardiac death, including cardiac arrest, often with symptoms suggesting ischemia with new ST segment elevation; new left bundle branch block; or pathologic or angiographic evidence of fresh coronary thrombus in the absence of reliable biomarker findingsType 4:a. Myocardial infarction associated with Percutaneous Coronary Interventions PCIb. Myocardial infarction associated with documented stent thrombosis.Type 5: Myocardial infarction associated with Coronary Artery Bypass Graft surgeryFor the main article on cardiac markers see the chapter on cardiac markers. For the main article on the diagnosis of STEMI, see the chapter on Clinical classification of acute myocardial infarction. 