What is the normal value and clinical significance of cardiac troponin

Cardiac troponin is

a protein that exists in cardiomyocytes and is one of the most sensitive and specific markers for the diagnosis of acute coronary syndrome. Normally, the concentration of cardiac troponin in normal people is extremely low, but when the myocardium is damaged or necrotic, the cardiomyocytes will release cardiac troponin, resulting in an increase in its level. It is mainly used for the diagnosis of acute myocardial infarction, viral myocarditis, acute heart failure and other diseases. Cardiac troponin is mainly divided into cardiac troponin T and cardiac troponin I. The normal range of different indexes varies according to different detection methods. For example, when detected by ELISA method, cardiac troponin I ranges from 0-0.20μg/L and cardiac troponin T ranges from 0-0.1μg/L; when detected by chemiluminescence method, cardiac troponin I usually ranges from 0-0.13μg/L and cardiac troponin T usually ranges from 0-0.09μg/L.