Myocardial triple test generally refers to serum myocardial necrosis markers, including myoglobin, troponin, and creatine kinase isoenzyme, which represent whether the myocardium is damaged and the scope and degree of damage, so as to make a reasonable and comprehensive judgment on myocardial infarction, myocarditis, and other diseases, and guide the treatment. 1. Myoglobin: It is generally elevated earlier after myocardial injury, but the specificity is not strong, and needs to be analyzed comprehensively with clinical symptoms and ECG examination. It needs to be analyzed together with clinical symptoms and ECG. It is generally used to judge early myocardial injury. 2. Troponin: it is a clinical indicator with high specificity to clarify myocardial injury, and it is a common indicator to judge myocardial injury, but the abnormal result appears after 6 hours, and the early negative result can not completely exclude myocardial injury. 3. Creatine kinase isoenzyme: the degree of its elevation can more accurately reflect the scope of infarction, but also due to the peak decline earlier, help to determine whether the vascular recanalization is successful and whether there is no re-infarction. When abnormal myocardial necrosis markers appear, you should go to the hospital in time, under the guidance of the doctor to clarify the cause of the disease, and carry out targeted treatment.