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A physical hazard is an agent, factor or circumstance that can cause harm with contact. They can be classified as type of occupational hazard or environmental hazard. Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards. [1] Engineering controls are often used to mitigate physical ...
Burn injury is caused by contact with extreme temperature, chemicals, or radiation. The effects of burns vary depending on the depth and size. Superficial or first-degree burns only affect the epidermis, causing pain for a short period of time. Superficial partial-thickness burns cause weeping blisters and require dressing. Deep partial ...
Primary injuries are caused by blast overpressure waves, or shock waves. Total body disruption is the most severe and invariably fatal primary injury. [2] Primary injuries are especially likely when a person is close to an exploding munition, such as a land mine. [3]
Abdominal CT showing left renal artery injury. Blunt abdominal trauma (BAT) represents 75% of all blunt trauma and is the most common example of this injury. [3] Seventy-five percent of BAT occurs in motor vehicle crashes, [4] in which rapid deceleration may propel the driver into the steering wheel, dashboard, or seatbelt, [5] causing contusions in less serious cases, or rupture of internal ...
Injury in animals is sometimes defined as mechanical damage to anatomical structure, [1] but it has a wider connotation of physical damage with any cause, including drowning, burns, and poisoning. [2] Such damage may result from attempted predation, territorial fights, falls, and abiotic factors. [2]
A hazard is defined as "the potential occurrence of a natural or human-induced physical event or trend that may cause loss of life, injury, or other health impacts, as well as damage and loss to property, infrastructure, livelihoods, service provision, ecosystems and environmental resources." [4]: 2233
Total body disruption is invariably fatal to most complex life, such as humans, as structures necessary for continued survival are destroyed or otherwise rendered non-functional. In the case of humans, the brain (if not destroyed) is deprived of oxygenated blood, while other organs (if not destroyed) are deprived of the involuntary functions. [5]
Trauma is the sixth leading cause of death worldwide, resulting in five million or 10% of all deaths annually. [80] [81] It is the fifth leading cause of significant disability. [80] About half of trauma deaths are in people aged between 15 and 45 years and trauma is the leading cause of death in this age group. [81]