Troponin T CLIA kit (Chemiluminescence Immunoassay) is an in vitro diagnostic test for the quantitative detection of Troponin T(cTnT). cTnT is a component of the contractile apparatus of the striated musculature. Although the function of TnT is the same in all striated muscles, TnT originating exclusively from the myocardium clearly differs from skeletal muscle TnT. cTnT increases approximately 3-4 hours after acute myocardial infarction (AMI) and may persist up to 2 weeks thereafter.