Contact with more than 1,000 volts of high-voltage electricity more respiratory arrest, 200 volts of low-voltage electricity can easily cause myocardial fibrillation and cardiac arrest, 220 to 1,000 volts of voltage can cause heart and respiratory center paralysis at the same time. Electrocution localization may have deep burns, and the charred yellow, and the surrounding normal tissue is clearly demarcated, there are more than 2 traumas, 1 entrance, 1 or several exits, the heavier traumas deep into the subcutaneous tissues, tendons, muscles, nerves, and even deep to the bone, was charred.
<First aid methods>
1, immediately cut off the power supply, or use non-conductive objects such as dry sticks, bamboo rods or dry cloths to make the casualty as soon as possible from the power supply. First aiders should not directly contact the electrocuted casualty to prevent themselves from being electrocuted and affect the rescue work.
2, when the casualty from the power supply, should immediately check the casualty's general condition, especially respiratory and heartbeat, found that respiratory and heartbeat stops, should be immediately on the spot rescue.
(1) mild: that is, conscious, breathing and heartbeat are autonomous, the casualty lying on the ground, close observation, do not stand or walk to prevent secondary shock or heart failure.
(2) respiratory arrest, the heart beat exists, lying on the ground, unbuttoned, open the airway, immediately mouth-to-mouth artificial respiration, conditions can be endotracheal intubation, pressurized oxygen artificial respiration. Can also be acupuncture Renzhong, ten Xuan, Yongquan and other points, or to give respiratory stimulants (such as sanguinarine, caffeine, kolamine).
(3) If the heart stops beating and breathing exists, chest compressions should be performed immediately.
(4) the respiratory heart stops, should be in artificial respiration at the same time chest heart compression, in order to establish respiration and circulation, to restore the whole body organs of oxygen supply. It is best for two people to perform mouth-to-mouth artificial respiration and chest compressions, at a ratio of 1:5, i.e., 1 artificial respiration and 5 heart compressions. If the scene rescue only 1 person, with 15:2 ratio of chest compressions and artificial respiration, i.e., chest compressions 15 times, and then mouth-to-mouth artificial respiration 2 times, and so on alternately, the rescue must be insisted on to the end.
(5) When dealing with electric shock, attention should be paid to the presence of other injuries. Such as electrocution after popping off the power supply or fall from a height, often complicated by craniocerebral trauma, hemothorax, rupture of internal organs, limbs and pelvic fractures. If there are trauma, burns need to be treated at the same time.
(6) on-site rescue, do not move the casualty, if you need to move, rescue interruption time should not exceed 30 seconds. Move the casualty or send it to the hospital, in addition to the casualty should be made to lie flat on the stretcher and in the back of the pad to the flat hard broad planks, should continue to rescue, cardiac arrest to continue artificial respiration and chest compressions, in the hospital medical personnel did not take over before the rescue can not be suspended.