Electrocardiogram is a commonly used method in clinic. ECG detection is convenient, rapid and non-invasive, which is of great significance for early diagnosis and discovery of diseases. Whether it is physical examination or normal diagnosis and treatment, ECG is the first choice at present. If the report shows that the ECG is abnormal after ECG examination, it refers to the following aspects:

1, ECG examination can determine the frequency of heart beating, that is, whether the beating times are normal or not.

2, ECG can also find whether the rhythm is normal, that is, whether the heart beats regularly. If the electrocardiogram is abnormal, it may be that the heartbeat is too fast or too slow, or it may be arrhythmia.

3. ECG has its particularity in diagnosing ischemia. If there is a change of ST-T, there will be a change of myocardial ischemia, which is also considered as an abnormality of ECG.