The patient is in the supine position, the rescuer puts one hand on the patient's forehead and presses down, while pinching the patient's nostrils, the other hand is placed on the patient's lower jaw, lifting it up, so that the head is tilted as far as possible, so that the gas can be kept The road is open. Then close the patient's mouth with your own mouth and blow it into the patient's mouth for 1 second. When blowing, observe the patient's chest at the same time and see the chest wall slightly bulging. Release the air and let the patient's chest wall return to its original state. Then pinch the patient's nose, blow again, relax, and repeat. The blowing frequency is 10 to 12 times per minute. When the patient has oral trauma or other reasons that the mouth cannot be opened, the mouth can be used to blow the nose.
If the patient is cardiac arrest, cardiopulmonary resuscitation should be performed. At this time, cardiac compression should be performed 30 times and then artificially breathed twice. Repeatedly, do not pause until the emergency doctor arrives.
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