Do artificial respiration methods are as follows: 1, mouth-to-mouth breathing: according to the patient’s condition to choose the method of opening the airway, the patient to supine position, the rescuer placed one hand on the patient’s forehead and pinch the patient’s nostrils with the thumb and index finger, the other hand holding the chin so that the head is tilted back as far as possible to keep the airway open state, then take a deep breath, open the mouth to close the patient’s mouth around (infants and children can be wrapped with a piece of nose), to the patient Blow into the patient’s mouth two times in a row, each time for more than 1 second, until the thorax is raised, stop blowing, release the patient’s mouth, and relax the hand pinching the nostrils, when the patient has finished breathing out, that is, the next time the same blowing. Adult blowing frequency of 12 times / min, but pay attention, so that the gas is completely exhausted before re-blowing. 2, mouth-to-nose breathing: when the patient has oral trauma or other reasons to the mouth can not open, mouth-to-nose blowing can be used, its operation is: first open the patient’s airway, head back, hold the patient’s jaw with his hand to make his mouth closed. Take a deep breath, wrap your mouth around the patient’s nose, blow hard into the patient’s nostrils until the chest is lifted, and then open the patient’s mouth after blowing to let the gas out. If the blowing is effective, the patient’s chest can be seen to rise and fall with the blowing and the airflow can be felt to be exhaled.