Open the airway. When the patient takes the supine position, the unconscious person often blocks the airway because of the falling of the tongue. At this point, the rescuer should kneel on one side of the patient's body, hold down his forehead with one hand and hold up his chin with the other. The standard is that the line from the mandible to the earlobe is perpendicular to the horizon, indicating that the airway has been opened.
Chest compression. If the patient has no pulse, chest compressions are needed. Methods: The rescuer should first find the pressed part. Along the ribs on both sides of the lowest side, touch the intersection point in the middle of the body from bottom to top, which is called xiphoid process. Set the position of two transverse fingers on the sternum with xiphoid process as the point, that is, the boundary line of the middle and lower third of the sternum, which is the implementation point. The rescuer puts one hand on the back of the other hand, with his fingers crossed, and the root of the palm is placed in the position just found, and pressed vertically downward by the strength of the upper body. The sinking distance of the sternum is about 4-5 cm, and his arm must be straight and not bent. After pressing it, he will lift it quickly, and the frequency will be controlled at 80- 100 times per minute. Note: the strength must be controlled, not too hard, because too much strength is easy to cause rib fracture, which will cause ribs to pierce important organs such as heart, lung, liver and spleen. Old people's bones are fragile, so we should pay more attention to them.
Artificial respiration. If the patient is not breathing, give mouth-to-mouth resuscitation twice immediately and then touch the carotid artery. If you can feel the pulse, give artificial respiration. Methods: It is best to find a clean gauze or towel and put it in the patient's mouth to prevent bacterial infection. The rescuer holds the patient's nose with one hand, takes a deep breath, holds it, bends down quickly, wraps the patient's mouth with his mouth, and blows quickly. At the same time, the rescuer's eyes need to observe whether the patient's chest is inflated due to the injection of gas. After blowing the air, release the hand holding the nose and let the air exhale, thus completing a breathing process. The ratio of cardiac compression to artificial respiration is 30:2.
Evidence of stopping cardiopulmonary resuscitation. At the same time, we should always observe the patient's vital signs. Touch the patient's hands and feet. If the temperature rises, further touch the carotid artery. If there is pulsation, stop cardiopulmonary resuscitation and send the patient to the hospital for further treatment as soon as possible.