domingo, 23 de mayo de 2010

OVERVIEW

Before starting it is therefore important to consider several general issues regarding burns. Here are the deficion and classification of burns:

What is a burn?


Burns are a type of traumatic injury caused by high temperatures, electricity by a chemical or radiation.

Types of burns?


Heat Burns: For external heat sources which raise the temperature of the skin and cause the tissue cell death or charring. Examples include exposure to hot metals, scalding liquids, steam and flames.
Radiation burns: Prolonged exposure to ultraviolet rays from the sun or other as X-rays
Chemical burns: For strong acids or alkaline detergents or solvents coming into contact with skin or eyes.
Electrical burns: For electrical current, either alternating current
 
Functions of the skin:


• Regulates body temperature.
• Collect water and fat.
• It is a sensory organ.
• Prevents water loss.
• Prevents the entry of bacteria

Classification of burns?


Burns are classified into first, second or third degree depending on their severity and to what extent penetrate the skin surface.

First-degree burns (superficial burns)
They affect only the outer layer of the skin. The burn site is red, sore and dry and no blisters. An example is the mild sunburn. The tissue damage in the long term are rare, and usually consist of an increase or decrease in skin color.

Second-degree burns (partial burns)
Affect the outer layer of the dermis where it is possible to recognize the pain and touch. The burn site appears red, blistered, and may be swollen and painful.

Third-degree burns (total burn)
They destroy the outer layer and dermis. This type of burn can also damage bones, muscles and tendons. When the burn also affects the bones, muscles or tendons, one can speak of a fourth degree burn. The burn site appears white or charred. There is tenderness in the area since the nerve endings are destroyed.

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