Weekly First-aid Topic: A “1-2-4” Tip for Myocardial Infarction
From:Beijing Municipal Commission of Health and Family Planning


Myocardial infarction is the main cause of sudden death. Identifying myocardial infarction and conducting timely rescue are the first to do to prevent sudden death due to myocardial infarction. Remembering the "1-2-4" formula helps us identify myocardial infarction and provides patients with greater chance to survive.

"2" stands for two major symptoms. Chest pain is the most prominent symptom of myocardial infarction. When suffering chest pain caused by MI, a patient most likely gets a sense of squeezing in precordial region, which resembles “a giant rock laying on the chest”. Pain appears in upper abdomen, jaw and left arm at the same time. Sweating is a major symptom of MI. People suffering common angina attacks rarely sweat while MI is usually accompanied by sweating, which may wet the all over the body in minutes.

"1" represents a kinds of drug to relieve symptoms of MI. Nitroglycerin is the most effective medicine to relieve chest pain. When chest pain attacks, it is advised to sublingual a tablet of nitroglycerin. If the pain is not very serious, it will be eased in five minutes after taking the medicine. If not, you can take another tablet. If the pain still exists after taking the third tablet, you should promptly call 120 for medical treatment.

"4" means rescuing in four minutes. Severe myocardial infarction can easily cause sudden cardiac arrest and four minutes after a sudden cardiac arrest is the prime time for first aid. To save patients with myocardial infarction, you should call 120 at once and conduct artificial cardiopulmonary resuscitation if the conditions permit.