TNNT2 and heart failure: Cardiac troponin T (cTnT) isa biomarker for diagnosing acute coronarysyndromes and heart failure., Elevated cTnT levelsabove 0.1 ng·mL–1 can lead to myocardial damageand a range of complications, including death., The National Academy of Clinical Biochemistry emphasizes the needto rapidly detect cardiac biomarkers, such as cTnT, with a recommendedturnaround time of less than 1 h.