CTNI

Cardiac troponin I (cTnI) is a myocardial protein consisting of 209 amino acids that is expressed only in the myocardium and has only one subtype. The concentration of cTnI is usually low and can occur within 3-6 hours after the onset of chest pain. The patient’s blood is detected and peaks within 16 to 30 hours after the onset of symptoms, even for 5-8 days. Therefore, the determination of cTnI content in the blood can be used for the initial diagnosis of acute myocardial infarction and the late monitoring of patients. cTnl has high specificity and sensitivity and is a diagnostic indicator of AMI

In 2006, the American Heart Association designated cTnl as the standard for myocardial damage.