Do I need to be fasting to check myocardial enzymes?

Fasting is generally not required for cardiac enzyme tests, but the specific conditions may vary depending on the hospital and the test item. Myocardial enzymes are a group of enzymes existing in myocardial cells, including aspartate aminotransferase (AST), lactate dehydrogenase (LDH), creatine kinase (CK) and their isoenzymes. These enzymes will be released into the blood during myocardial infarction, myocarditis and other diseases, so the detection of myocardial enzymes is of great significance for the diagnosis of myocardial diseases. In general, eating has little effect on the level of myocardial enzymes, so fasting is not necessary. However, fasting may be necessary in some cases, such as when other tests require fasting or when the doctor has special requirements. In addition, it is important to note that the interpretation of myocardial enzyme results requires a comprehensive judgment based on clinical symptoms, other test results, and medical history. Elevated myocardial enzymes alone do not necessarily confirm myocardial disease, but further ECG, cardiac ultrasound and other examinations are needed to confirm the diagnosis. For some special groups, such as patients with diabetes, hypoglycemia and other diseases, doctors may recommend fasting for examination according to specific conditions. In short, before performing myocardial enzyme examination, it is best to consult a doctor to understand specific precautions and requirements to ensure the accuracy of the examination results. At the same time, if chest pain, chest tightness and other discomfort symptoms occur, seek medical attention in time for early diagnosis and treatment.