Drowning first aid knowledge

Drowning is an asphyxiating disease caused by human body submerged in water, respiratory tract blocked by water or laryngeal spasm. When drowning, a large amount of water, sediment and sundries can be poured into the lungs through the nose and mouth, causing respiratory obstruction, hypoxia, coma and even death.

② The common symptoms after drowning are edema, cyanosis, bloodshot eyes, bloody foam in mouth and nose, sediment or algae, pale skin of hands and feet, cold limbs, coma, dilated pupils, rales in both lungs, dyspnea, low and irregular heart sounds, decreased blood pressure and bloating. In the recovery period, pneumonia and lung abscess may occur. The whole drowning process is very rapid, and people often die within 4 ~ 5 minutes or 5 ~ 6 minutes.

In order to save the drowning man, we must race against time. People who are not used to water and fall into the water don't have to panic. They should quickly take self-help: head back, mouth up, try to keep their nose and mouth from breathing out of water, and don't raise or struggle their hands to avoid sinking. People who can swim, such as muscle fatigue and muscle cramps, should also take the above self-help measures. The drowning person should keep calm and take off his coat, shoes, boots, etc. Swim as quickly as possible to the drowning person, take a clear posture, hold his right hand with his left hand from his left arm or the middle of his body, or drag his head, and then swim back and drag it to the shore. If the rescuer is unfamiliar with water, he can bring a life buoy, life jacket or plastic foam board, wooden board, etc. And be careful not to be hugged by the drowning person, so as not to involve yourself. After the drowning person is rescued, the mud and dirt in the mouth and nose should be removed immediately, and the tongue should be pulled out to keep the respiratory tract unobstructed. If there is still heartbeat and breathing, the drowning person can lie on his stomach, with his head low and his abdomen high, press his back and drain the accumulated water in his lungs and stomach. The method is as follows: the rescuer kneels on one leg and the other leg, and the abdomen of the drowning person is horizontally placed on the rescuer's knee, with the head drooping, and then the back is pressed to pour out the water in the stomach and lungs. If breathing or heartbeat stops, give artificial respiration and chest compressions immediately, such as mouth-to-mouth artificial respiration, tracheal intubation and oxygen inhalation. After the above rescue, you must be sent to the hospital immediately and continue treatment after resuscitation.