First aid is an accidental treatment that is indicated by oneself or others. The faster the emergency treatment measures for the injured, the better.
First aid knowledge
The injured person is in a coma. He should check if his/her heart and lung function is normal. Check the following three steps. If you suspect you have a back or neck injury, you should be careful not to move his/her head and fasten his head as quickly as possible.
(1) Open the mouth of the injured person, remove the obstruction in the mouth, and then check the respiratory tract: Place one hand on the forehead of the injured person, and use two fingers of the other hand to lift the chin of the injured person to make their heads The department turned back.
(2) Check the victim's breathing. Place the cheek close to the injured person's mouth and nose for about 5 seconds and feel his/her breathing. At the same time, observe the chest movement of the injured person to determine if the injured person's lung function is normal.
(3) The number of pulse pulsations at the trachea to check the blood circulation of the injured person for 5 seconds. If there is pulse pulsation and breathing, place the injured person in a resuscitation posture. If there is neither breathing nor pulse pulsation, begin. Heart resuscitation treatment.
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