Burns study guide

Burns study guide - 1. Describe the causes and prevention...

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1. Describe the causes and prevention of burn injuries : -pneumonia is the most common infection among hospitalized patients with burns -the home is the most common site, cigarettes are a leading cause of fatal home fires. -the mortality rate for burns is highest in the very young and the elderly -burns occur when there is a direct or indirect contact with a heat source, results in a loss of skin integrity Types of burns : burns occur as a result of exposure to fire(thermal); direct contact with electricity, radiation, or chemicals; and scalds. Thermal burns -from flames are the most common type of burn. Depth of the injury is related to the length of exposure and the temperature of the heat source. Scald burns -type of thermal injury that occurs from contact with hot foods or liquids, including steam. Severity is related to temperature of the liquid and the length of exposure time. Temperature of a liquid at 140F takes only 5 seconds or less for a serious burn (coffee, hot tea, and other hot drinks are usually served at 160-180F) Electrical burns - tend to be deeper than most burn injuries , severity depends on the amount of voltage, length of exposure, type of current, the pathway of flow, and the local tissue resistance. Damage occurs internally due to the electrical current traversing along the tendons and vessels as it flows through the body. It creates wounds that often extend into the subcut tissue and muscle fascia. Entry and exit sites give a clue as to how much damage. For ex: if the entry wound is the hand and the exit wound is the bottom of the foot, the current traveled through most of the major organs. If the entry/exit was hand to shoulder, then just the arm sustained injury. When deep muscle injury has occurred, myoglobin is released into the circulation from the muscle tissue . It is transported to kidneys where it blocks the renal tubules, causing acute tubular necrosis . Electric currents can
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Burns study guide - 1. Describe the causes and prevention...

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