Frostbite

Frostbite is damage to the skin from freezing and is due to prolonged exposure to cold temperatures, usually below 320 degrees F. It occurs when ice crystals form in the skin or deeper tissue.
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Frostbite
Related Category: Pathology
(chilblains), injury to the tissue caused by exposure to cold, usually affecting the extremities of the body, such as the hands, feet, ears, or nose.
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Frostbite: First aid
When exposed to very cold temperatures, skin and underlying tissues may freeze, resulting in frostbite. The areas most likely to be affected by frostbite are your hands, feet, nose and ears.
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True frostbite, on the other hand, is a medical emergency and requires treatment at the nearest hospital emergency department. Frostbitten skin appears white and waxy and feels harder than normal.
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Frostbite is the destruction of body tissues due to freezing (at 0C or 32F). Ice crystal formation in the tissues breaks apart cells, thereby destroying the tissues.
Contributory Factors ...
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Frostbite - Hands
Frostbite is seldom seen in areas with temperate climates. It occurs at sub-zero temperatures or at temperatures just below freezing but with a wind (wind chill). At some temperatures frostbite can occur within minutes.
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Frostbite is an injury caused by freezing of the skin and underlying body tissues. The most common body parts to get frostbite are toes, feet, fingers, hands, nose, and ears.
How does it occur?
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Frostbite - Source:MedicineNet
Complex Regional Pain Syndrome - Complex regional pain syndrome (CRPS), also called reflex Source:WebMD Medical Reference from The Cleveland Clinic ...
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FROSTBITE (Hypothermia; Chilblains)
SYMPTOMS"First there is a tingling, then a redness, followed by paleness and numbness in a body part"generally the fingers, toes, cheeks, nose, and ears.
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Applying aloe vera gel to psoriasis and frostbite injuries may help the skin to heal. Very little study has been done on the use of aloe on actual human wounds, but the findings so far are promising.
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Although frostbite of the foot is highly preventable with the appropriate socks and shoes, people do leave themselves at risk when they spend time outside in wet socks and shoes in extremely low temperatures, such as below 15 F (-9.4 C).
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Biem J. Out of the cold: management of hypothermia and frostbite. CMAJ. 2003; 168(3): 305-311.
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It also can occur as a result of damage to blood vessels from injury, frostbite or use of jarring machinery, such as jackhammers or chainsaws.
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to an extremity can be cut off because of injury to the blood vessel, hardening of the arteries, arterial embolism, impaired circulation as a complication of diabetes mellitus, repeated severe infection that leads to gangrene, severe frostbite, ...
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avoid nicotine - it constricts the blood vessels and increases the risk of cold damage such as frostbite
wear multiple thin layers of clothing that help to trap heat, rather than one thick jumper ...
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