The heart is an important organ to support the normal functioning of our body, heart attack may cause a major threat to human life and health, once the onset of the situation is more critical, we should master some of the heart attack rescue measures, the following by me to introduce some knowledge, I hope to be able to help you. First aid knowledge a: immediately whistle, if you sit back and wait may be killed. As soon as possible to get help, is often a heart attack and can be spared the main key to death. Most heart attack deaths occur outside of a hospital, and once you are in a hospital, your chances of survival increase dramatically. First Aid Knowledge 2: Be prepared to provide the following information to the other party, the nature of the emergency – heart attack, the patient’s name, telephone number, details of residence and transportation routes. Do not hang up the phone immediately after whistling because you are panicked, but give the emergency personnel the opportunity to ask questions about the situation. First aid knowledge three: heart attack must seize the moment, scramble for the patient for rescue, otherwise miss the best emergency time, is likely to cause regret to life, in order to reduce the sudden onset of heart disease, the patient should also be more check the body on weekdays, to grasp the law of their own heart attack, in order to reduce the risk of death. First aid knowledge four: such as an acute heart attack, should first loosen the clothes, so that the patient to maintain a semi-sitting position or the patient feels the most comfortable position, and keep absolutely quiet. Have the patient take nitroglycerin first. First Aid Knowledge 5: Be sure to familiarize your family members with all of the above and have expertise in first aid measures for heart attack patients. Try to have your family members or coworkers learn CPR and take refresher training at least once a year to maintain proficiency in this first aid technique.