Serum troponin T measurement is mainly one of the myocardial biomarkers and is a marker of the severity of myocardial damage, if the serum troponin level is high, it means that the human heart muscle is damaged accordingly. Serum troponin is a group of contractile proteins of skeletal and cardiac muscles, which can be judged as myocardial infarction when the level in the blood is greater than 0.5 μg/l, critical when it is greater than 0.2 μg/L, and normal when it is below 0.2 μg/L. The level rises rapidly after 3 hours after the onset of the disease, and then other serious diseases such as angina pectoris and heart failure may appear, with high sensitivity and specificity.