Doctors concluded she'd likely suffered an electrical injury after her charger sent a current through the necklace.
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"Electrical Injury." Cetri.org, n.p. 2010. Web. 23 July 2013 Burn treatment for severe wounds may require skin grafting, debridement, excision of dead tissue, and repair of damaged organs.
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Electrical current can cause interference with nervous control, especially over the heart and lungs. Electric shock which does not lead to death has been shown to cause neuropathy at the site where the current entered the body. The neurologic symptoms of electrical injury may occur immediately, which traditionally have a higher likelihood for healing, though they may also be delayed by days to years. The delayed neurologic consequences of electrical injury have a worse prognosis.
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Side splash makes up about a third of cases and occurs when lightning strikes nearby and jumps through the air to the person. Contact injury occurs when the person is touching the object that is hit. Direct strikes make up about 5% of injuries. The mechanism of the injuries may include electrical injury, burns from heat, and mechanical trauma.
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The Chicago Electrical Trauma Rehabilitation Institute (CETRI), located in Chicago, Illinois, was founded in 2009 by a group of scientists and physicians that had collaborated for more than 20 years to better understand and treat electrical injury patients. These collaborators were members of the faculty of four major medical centers in Chicago. Over the years, this multi-institution research team have published more than 120 scientific articles and three textbooks on the topic of electrical injury and have evaluated many electrical shock survivors. Some important discoveries made by this team are that electrical shock injury is mediated by multiple mechanisms including non- thermal electrical forces, which many electrical shock survivors develop neuropsychological problems even if the current never passed through the brain and progressive peripheral pain and sleeplessness often adds to the disability.
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Electrical injury is a physiological reaction caused by electric current passing through the body. The injury depends on the density of the current, tissue resistance and duration of contact. Very small currents may be imperceptible or produce a light tingling sensation. A shock caused by low and otherwise harmless current could startle an individual and cause injury due to jerking away or falling.
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High voltage power supplies used in ion accelerators necessary for ion implantation can pose a risk of electrical injury. In addition, high-energy atomic collisions can generate X-rays and, in some cases, other ionizing radiation and radionuclides. In addition to high voltage, particle accelerators such as radio frequency linear particle accelerators and laser wakefield plasma accelerators present other hazards.
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The increased conductance of saltwater reduces the voltage gradient developed across a person, and so reduces the possibility of electrical injury. However, as the source voltage increases the chances of shock in saltwater also increases. Sometimes Electric Shock Drowning is referred to as ESD but this should not be used, as it can be confused with the IEC defined term for Electrostatic discharge (ESD).
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The muscle damage is most often the result of a crush injury, strenuous exercise, medications, or drug abuse. Other causes include infections, electrical injury, heat stroke, prolonged immobilization, lack of blood flow to a limb, or snake bites. Some people have inherited muscle conditions that increase the risk of rhabdomyolysis. The diagnosis is supported by a urine test strip which is positive for "blood" but the urine contains no red blood cells when examined with a microscope.
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Hazard controls for electrical injury include assuming all power lines are energized until confirmation they are de-energized, and grounding power lines to guard against electrical feedback, and using appropriate personal protective equipment. Proper respiratory protection can protect against hazardous substances. Proper ventilation of an area is an engineering control that can be used to avoid or minimize exposure to hazardous substances. When ventilation is insufficient or dust cannot be avoided, personal protective equipment such as N95 respirators can be used.
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Hazard controls for electrical injury include assuming all power lines are energized until confirmation they are de-energized, and grounding power lines to guard against electrical feedback, and using appropriate personal protective equipment. Proper respiratory protection can protect against hazardous substances. Proper ventilation of an area is an engineering control that can be used to avoid or minimize exposure to hazardous substances. When ventilation is insufficient or dust cannot be avoided, personal protective equipment such as N95 respirators can be used.
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Contact with energized wiring or devices is the most common cause. In cases of exposure to high voltages, such as on a power transmission tower, direct contact may not be necessary as the voltage may "jump" the air gap to the electrical device. Following an electrical injury from household current, if a person has no symptoms, no underlying heart problems, and is not pregnant further testing is not required. Otherwise an electrocardiogram, blood work to check the heart, and urine testing for signs of muscle breakdown may be performed.
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A proliferation of types developed for both convenience and protection from electrical injury. Today there are about 20 types in common use around the world, and many obsolete socket types are found in older buildings. Coordination of technical standards has allowed some types of plug to be used across large regions to facilitate trade in electrical appliances, and for the convenience of travellers and consumers of imported electrical goods. Some multi-standard sockets allow use of several types of plug; improvised or unapproved adaptors between incompatible sockets and plugs may not provide the full safety and performance of an approved socket-plug combination.
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Standard personal protective equipment for fire cleanup include hard hats, goggles or safety glasses, heavy work gloves, earplugs or other hearing protection, steel-toe boots, and fall protection devices. Hazard controls for electrical injury include assuming all power lines are energized until the power provider confirms they are de-energized, and grounding power lines on both the load- and supply-sides of the work area to guard against electrical feedback if a portable generator is turned on elsewhere in the power grid. Appropriate personal protective equipment includes rubber gloves, dielectric overshoes, and insulated sticks and cable cutters. Proper respiratory protection can protect against hazardous substances.
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Electric fan heaters are unsealed appliances with live electric parts inside, so they are not safe to use in wet environments because of the risk of electrical injury if moisture provides a conductive path to electrically-live parts. Electric fan heaters usually have a thermal fuse close to the heating element(s) to prevent overheating damage in the event of fan failure or air intakes becoming blocked, and a tip-over switch to shut the heater off when the fan outlet is not in the required orientation. Metal-cased heaters may perform better in the case of possible fire-causing faults than plastic-cased ones, since the case will stay intact and is not flammable, but the metal case presents a higher risk of electric shock if a heater malfunctions. Portable fuel-powered fan heaters release all the fumes of combustion into the room, creating a risk of poisoning by carbon monoxide and carbon dioxide.
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