According to statistics, 90% of the patients can be resuscitated from 1 min after the electric shock; the recovery rate of the patients can be reduced to 10% from 6 min after the electric shock; while the patients can be resuscitated from a longer time after the electric shock, the possibility of survival is very small. It can be seen that timely treatment is very important. In this article, we will popularize the common sense of electric shock: the common sense of emergency rescue after electric injury.
Electric shock injury, commonly known as electric shock, is caused by electric current passing through the human body. Most of them are caused by the direct contact of human body with the power supply, and they are also injured by the high-voltage electricity or lightning over thousands of volts. Respiratory arrest often occurs when exposed to high voltage above 1000 V, myocardial fibrillation and cardiac arrest easily occur when exposed to low voltage below 200 V, and simultaneous paralysis of heart and respiratory center can occur when exposed to 220-1000 v.
When a strong electric current passes through a person’s body, in an instant, the person will be killed suddenly or faint due to shock, and the body will also be partially burned.
The local manifestations were burn, hemorrhage, scorch and so on. The boundary between the burn area and the surrounding normal tissue is clear. There are more than 2 wounds, 1 entrance, 1 or several exits. In the severe cases, the wounds were deep in the subcutaneous tissue, tendons, muscles, nerves, and even deep in the skeleton. Or systemic dysfunction, such as shock, respiratory and cardiac arrest.
The cause of death is the high inhibition of brain (respiratory center of medulla oblongata), the inhibition of myocardium and ventricular fibrillation. The damage after electric shock is related to the voltage, current and the condition of conductor contact surface. High voltage, strong current, small resistance, wet body surface, easy to die: if the current is only from one side of the body or the body surface to the ground, or the body is dry, high resistance, it may cause burns and may not die.
1. Cut off the power supply immediately, or use non-conductive objects such as dry sticks, bamboo sticks or dry cloth to make the wounded get out of the power supply as soon as possible. The first-aid personnel shall not directly contact the wounded with electric shock to prevent their own electric shock from affecting the rescue work.
2. When the wounded is disconnected from the power supply, the whole body of the wounded shall be checked immediately, especially the breathing and heartbeat. If the breathing and heartbeat stop, rescue on site immediately.
(1) mild disease: that is to say, the patient is conscious, breathing and heartbeat are autonomous, the wounded lie on the ground, observe closely, do not stand or walk temporarily, to prevent secondary shock or heart failure.
(2) if the breathing stops and the heart beat exists, the clothes should be loosened and the airway should be unobstructed. The mouth to mouth artificial respiration should be performed immediately. If possible, the tracheal intubation and pressurized oxygen artificial respiration can be performed. It can also be used to acupuncture points such as Renzhong, Shixuan, Yongquan, etc., or give respiratory stimulants (such as kaempferine, caffeine, and clonidine).
(3) if the heart beat stops and breathing exists, external chest compression should be performed immediately.
(4) when the respiratory and heartbeat stops, external chest compression should be performed at the same time of artificial respiration to establish respiration and circulation and restore the oxygen supply of the whole body. On site rescue should be able to perform mouth-to-mouth artificial respiration and chest compressions for two people respectively in the proportion of 1:5, i.e. one artificial respiration and five cardiac compressions. If only one person is rescued on site, external chest compression and artificial respiration shall be carried out in the proportion of 15:2, i.e. external chest compression shall be carried out for 15 times first, and then mouth to mouth artificial respiration shall be carried out for 2 times. In this way, the rescue shall be carried out alternately.
(5) when dealing with electric injury, pay attention to whether there are other injuries. For example, after electric shock, it bounces off the power supply or falls from high to low, often complicated with craniocerebral injury, hemopneumothorax, visceral rupture, limb and pelvis fracture, etc. If there is any injury or burn, it should be treated at the same time.
(6) during on-site rescue, do not move the wounded at will. If it is necessary to move, the rescue interruption time shall not exceed 30 seconds. To move the wounded or send them to the hospital, in addition to lying on a stretcher and padded with flat hard board on the back, the rescue should be continued. For those with cardiac arrest, artificial respiration and chest compression should be continued. The treatment cannot be stopped before the medical staff in the hospital take over.
Safe use of electricity, from you and me. The above first aid needs to be operated by professional first aiders. Friends who can’t operate it are advised to call 120 first aid hotline in time. If you want to know more about electric shock prevention for children at home, please continue to pay attention to the recent update of Baibai safety net.