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stab wound
A stab wound is a specific form of penetrating trauma to the skin that results from a knife or a similar pointed object that is "deeper than it is wide". While typically stab wounds are thought only to be caused only by knives, they can also occur from ice picks, pens, broken bottles, and even coat hangers. Most stabbings occur because of intentional violence or through self infliction. The treatment is dependent on many different variables such as the anatomical location and the severity of the injury. Even though stab wounds are inflicted at a much greater rate than gun shot wounds, they account for less than 10% of all penetrating trauma deaths.
== Management==
Stab wounds can cause various internal and external injuries. They are generally caused by low-velocity weapons, meaning the injuries inflicted on a person are typically confined to the path it took internally, instead of causing damage to surrounding tissue, which is common of gunshot wounds. The abdomen is the most commonly injured area from a stab wound. Interventions that may be needed depending on severity of the injury include airway, intravenous access, and control of hemorrhage.〔 The length and size of the knife blade, as well as the trajectory it followed, may be important in planning management as it can be a predictor of what structures were damaged.〔〔 There are also special considerations to take into effect as given the nature of injuries, there is a higher likelihood that persons with these injuries might be under the influence of illicit substances which can make it harder to obtain a complete medical history. Special precautions should also be taken to prevent further injury from a perpetrator to the victim in a hospital setting. Similarly to treating shock, it is important to keep the systolic pressure above 90mmHg, maintain the person's core body temperature, and for prompt transport to a trauma center in severe cases.
To determine if internal bleeding is present a focused assessment with sonography (FAST) or diagnostic peritoneal lavage (DPL) can be used. Other diagnostic tests such as a computed tomography scan or various contrast studies can be used to more definitively classify the injury in both severity and location. Local wound exploration is also another technique that may be utilized to determine how far the object penetrated. Observation can be used in place of surgery as it can substitute an unnecessary surgery, which makes it the preferred treatment of penetrating trauma secondary to a stab wound when hypovolemia or shock is not present. Laboratory diagnostic studies such as a hematocrit, white blood cell count and chemical tests such as liver function tests can also help to determine the efficiency of care .
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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