1. Mouth-to-mouth resuscitation: It is the most effective and rapid method, and should be performed immediately after the airway is unobstructed. Under normal circumstances, the patient's breathing will recover quickly, unless there is electric shock, poisoning or carbon monoxide poisoning. In these cases, nerves and muscles are paralyzed, or carbon monoxide replaces oxygen in the blood. Be prepared for long-term persistence.

2. Open the airway: make the patient lie on his back on the flat and hard ground, press the patient's forehead with one hand, and hold the patient's mandible with the other hand to make his head lean back. Hold the nostril with one hand, check whether there is obstruction in the mouth and throat, open your mouth to cover the patient's mouth, 1 sec 1 time, and give artificial respiration twice.

When you give the patient artificial respiration, you should pay attention to his chest fluctuation. If there is no chest fluctuation, it is necessary to reopen the airway and give artificial respiration again. Normal breathing can be given artificial respiration to avoid reflux of gastric contents caused by hyperventilation.

4. Head trauma. Objective: To observe the injured and send them to hospital for treatment. If you are unconscious, see "unconscious". If there is bleeding in the wound, please refer to the treatment of the wound. It can compress the blood supply artery in the corresponding area to stop bleeding. If the situation is serious, you should send it to the hospital immediately. If you vomit, put yourself in a position of recovery.

5. Shock. Objective: Verify and treat shock and send it to hospital for treatment. Pale skin, cold sweat and rapid pulse, such as more than 100 times per minute, are all symbols of shock. One way to deal with shock is to improve the injured foot and increase the blood supply to the heart and brain. Keep the wounded warm. Immediately notify the doctor or send to the emergency room for treatment.

The significance of first aid:

1, emergency treatment is the first time, cardiac arrest, cardiopulmonary resuscitation should be carried out in time to save lives. Timely rescue can stabilize the condition and reduce the degree of disability.

2. Patients will feel pain after being hurt, and this kind of pain is even greater. This kind of pain can be relieved as soon as possible through first aid. First aid needs to be carried out against time, and time is life, which is very important for patients.