First aid instructions for electric burns on site Generally referred to as electrical burns, electrical contact burns, that is, burns caused by the direct passage of electricity through the body. First aid, should: a. immediately cut off the power supply, pull the electric switch or use non-conductive objects (wooden sticks or bamboo, etc.) to set off the power, and extinguish the burning clothes. Remember! Before cutting off the power supply, first aiders do not touch the wounded to avoid their own electrocution! Second, after the fire, if you find that the casualty breathing and heartbeat stopped, should immediately perform external cardiac compressions and mouth-to-mouth artificial respiration (i.e., cardiopulmonary resuscitation) resuscitation at the scene, after the recovery of heartbeat and respiration, promptly transferred to the nearest hospital for further treatment; or continue cardiopulmonary resuscitation at the same time, promptly transferred to the nearest casualty for medical treatment. 1, determine the heartbeat, respiration, consciousness Undo the casualty’s outer clothing, touch the carotid artery, while observing the thoracic rise and fall, determine the heartbeat and respiration. If the heartbeat and respiration stop, immediately perform cardiopulmonary resuscitation, and record the start time of resuscitation. Pat the patient’s shoulders with both hands and call the patient, observe whether there is a response. 2, external chest compressions (1) make the patient lie flat on the pillow, under the chest pressure plate, pad footstool. (2) chest compressions 30 times (17 seconds to complete): in the midpoint of the line of the two nipples or the two horizontal fingers on the saber, using the method of two-handed stacked buckle, wrist and elbow joints straight, using body gravity, vertical downward pressure, so that the sternum sinks ≥ 5cm. compression frequency: ≥ 100 times / min 3, open airway (1) clear the airway: the patient’s head to one side, use the right index finger to clear the mouth of foreign bodies (2) open Airway: open the airway method for the supine chin lift method, jaw method. Commonly used supine chin lift method, the method is the resuscitator’s left hand small fissure muscle placed on the patient’s forehead, palm force backward pressure to make his head tilted back, the right hand middle finger, index finger scissors separated under the patient’s chin and upward to lift, so that the airway straight. Neck injury is prohibited to avoid injury to the spinal cord. 4, artificial respiration The operator’s hand placed on the patient’s forehead without moving, pinch the patient’s nostrils with the thumb and index finger to avoid spillage of the blown-in gas, take a deep breath, try to open the mouth and press against the patient’s mouth to form an airtight seal, blow about 800 ml of air into the patient’s mouth with moderate force, 1 to 1.5 seconds, and blow until the patient’s thorax rises. After blowing, the operator raises the head to the side and releases the hand that pinches the nose at the same time to facilitate the patient’s exhalation. This is repeated at a frequency of 12 times / minute until the patient is breathing on his own. 5.Continuous cardiopulmonary resuscitation Continuous cardiopulmonary resuscitation, chest compressions and artificial respiration ratio of 30:2, with this method repeatedly, until recovery. Gas explosion burn site first aid instructions Once the unfortunate occurrence of gas explosion in the mine, the site personnel should pay attention to self-help and mutual aid: 1, after the incident should quickly lie down, chest against the ground. This is due to the gas gas light, more in the upper layer of combustion; and due to combustion, the change in air pressure in the tunnel, flame or hot air waves in the tunnel have one or two round trips, can win time to lie down to reduce the injury. Never attempt to run out. Because the speed of running is far less than the speed of gas combustion and shock waves. Another purpose of lying down is to reduce the shock wave damage. 2, after lying down, if you can use a thicker sheet, clothing or other items to cover the exposed parts of the body, can avoid burns or reduce the area of burns. Use a handkerchief or wet towel to cover the mouth and nose to avoid inhalation injury. If clothes are on fire, you should roll in place to put out the fire, or take off the burning clothes. 3, gas combustion in the air, often residual toxic gas, should quickly evacuate the scene to the ventilation zone. 4, gas explosion burns are generally shallow, but the trauma pain is more intense, and more combined injuries. If possible, the trauma or wound dressing as soon as possible. There are trauma, fracture of the limb to be fixed. Have put out the fire do not take off the clothes to reduce pain.