Luo Xingyuan, a fifth-grade student in Jiangsu, met a seriously ill old lady on an outing. She fainted on the side of the road. She saw some people offer help. Because Luo Xingyun learned first aid skills at school, she told people to relax and give CPR to the elderly. The old woman gradually woke up and entrusted her friend to bring the golden flag to Luo. She said that she was very happy and proud and would help more people in the future. Cardiopulmonary resuscitation is a life-saving technique when the heart and breathing stop. It is considered to be the simplest and most effective first aid method, in an emergency, such as shock or cardiac arrest. Ensure the site environment is safe. After confirming the safety, you can recall and pat the patient on the shoulder to judge whether the patient is conscious.

If the patient loses consciousness, ask the people around him for help immediately and call 120 for help. Judging whether the patient is breathing by observing the fluctuation of the patient's chest. If there is no fluctuation in the chest, give artificial respiration immediately. Lay the patient flat on the ground or hard bed and press the chest. The pressing position is about the midpoint of the junction of the two nipples. When pressing, the root of the left palm is close to the pressing part, the right hand is up, and the hands overlap. Press vertically downward at the speed of 100- 120 times per minute, and the palm root cannot leave the pressing position when pressing. After pressing for 30 times, give the patient artificial respiration. For adult patients, if the patient does not respond, does not breathe or cannot breathe normally, chest compressions should be performed immediately.

During the operation, the rescuer reaches the intersection of the connecting lines on both sides of the patient's chest and nipple to achieve the goal. The frequency is controlled at 100- 120 times/minute, and the news size is controlled at 5-6 cm. According to the procedure, the patient's stress and relaxation time should be ensured as much as possible. When relaxing, the rescuer's hand should not leave the patient's chest, but the patient's chest must fully rebound. During artificial respiration, rescuers should pay attention to the patient's chest. Once the patient's chest fluctuates, you can stop blowing. The key point of operation is that the rescuer breathes the patient after calming and inhaling, and the blowing time is controlled at about 1 second. As long as the patient's chest is fine, the tidal volume is generally controlled at 500-600ml. In the process of rescue, avoid rapid overpressure blowing to avoid excessive ventilation of patients.