The principles of handling acute myocardial infarction are as follows: First, once the patient is found to have the above symptoms, the patient should be kept calm quickly, stop all sports and activities, and try to put the patient in the correct position, usually in a sitting position and with the legs down, to reduce the amount of blood return and increase the burden on the heart. Second, quickly call 120 for help and have a professional doctor arrive at the scene of the disease with a defibrillator. Third, if there are oxygen absorbing devices at home, such as oxygen bags, oxygen cylinders, etc., give the patient oxygen, and at the same time, let the patient quickly take sublingual nitrate drugs, such as nitroglycerin or swallow isosorbide mononitrate, and if there are anti-platelet aggregation drugs at home, such as aspirin, clopidogrel or tegretol, give the patient oral medication. At this point, if the patient’s symptoms are slightly relieved, the patient may be allowed to continue taking certain medications that improve the blood supply to the heart. If the patient’s symptoms are not relieved and there is a significant worsening of symptoms, cardiopulmonary resuscitation should be given quickly to resuscitate the patient in case of cardiogenic shock or cardiac arrest.