Overview
Frostbite is damage caused by extreme cold to skin / tissues
At -15C or below, blood vessels constrict to preserve body temperature
When this state persists, tissue injury occurs
Frost bite usually affects tissues which are distant from the heart
It also occurs in tissues that are
most exposed to cold
The organs that are usually affected are -
a. Nose,
b. Ears,
c. Fingers
d. Toes
Care should be taken to prevent permanent tissue damage
Risk Factors
Diabetes
Peripheral neuropathy
Use of beta-blockers
Symptoms
Skin Discolorations
Loose skin
Tingling/burning sensation
Partial/Complete numbness
In severe cases,
Dry gangrene followed by amputation
Treatment Get medical help as soon as possible. Meanwhile
Wrap the affected area using clean cloth
If no medical help is forthcoming -
Move the victim to a warm place
Treat hypothermia first. Cover the person well
Keep the frost-bitten site in warm but not in hot water
This should be done till sensations returns
Steps to Avoid
Do not rub / massage the affected area
Avoid treatment if a second round of cold exposure is anticipated
Treatment followed by freezing causes extensive damage
Prevention
Avoid -
a. Extreme cold
b. Wet clothes
c. Chilly Wind
During cold weather, wear several layers of clothing
Wear accessories like-
a. Mittens, not gloves
b. Two pairs of socks
c. Hat / scarves to cover both ears well
Get enough food and rest
Avoid alcohol immediately before exposure to cold
Avoid cotton clothing
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