* Artificial respiration method The patient's breathing has stopped and the heart is still beating, or the heartbeat has just stopped shortly, such as electric shock, drowning, strangulation, poisoning, etc. When the workers breathe, the patient should be placed in a warm and airy place, undressed, and the cavities, soil, and blood in the oral cavity should be removed. Those with dentures should be removed. 1. The supine artificial respiration method: the patient supine, the first-aid person faces the patient, the legs are separated, cross the patient's bilateral thighs, kneeling on the ground, the arms are straightened, and both hands are placed under the rib arch of the patient and the thumb is inward. The remaining four points are directed outwards, and the patient's chest weight is pushed forward by the first aider's own weight for 2 to 3 seconds to make the thorax narrow and discharge the lung air. Body; then the first-aid upper body straight, hands loosen, so that the patient's chest expands and inhales air. Repeatedly so, 15 times per minute is appropriate. 2. Prone horizontal artificial respiration method: the patient is lying prone, the head is partial, the first-aid person is lying on the ground, facing the back of the patient, the tactics, the movements, the number of times, etc. and the supine worker breathing basically the same. Do not use too much force when working with workers to breathe. Rabbits cause rib fractures. While making artificial respiration, you should contact the hospital and ask for treatment. * Bandage method When wounded in first aid, it is often necessary to wrap the wound and protect it. Lest you go back to dyeing, but also have oppressive effects. You can fix the injured place when the bone fracture is broken. Yun. Briefly introduce two kinds of dressing methods. 1. Bandage dressing The big bandanna is cut out from the corner of 1 meter square cotton cloth. If you cut it in half, it becomes a small triangle. Triangle towel is widely used and easy to use. It can be used to wrap the head, hands, and feet. It can also be used to wrap the chest, back, elbow, knee, and pith. It can also be used to suspend the upper limbs. 2. Bandage dressing   The general use of single-head reel band, starting (start) dressing. When bandages are used, they must first be re-elected for several rounds. Afterwards, the bandage is gradually rolled upwards, and each ring is covered with half or more of the preceding lap, forming a spiral band. Bandages of limbs of different sizes can be folded back on the roll, wound downward, and then rolled up into a spiral reflex. With the end with a pin, tape or tear bandage to fix.