EMERGENCIES: HYPOTHERMIA AND FROSTBITE
When it’s colder than you think
In hypothermia your body temperature drops below normal when body heat is lost faster than it can be produced. Frostbite is the freezing of the skin or tissue near the skin surface. These conditions can actually occur when the weather is windy or wet, yet still above freezing. Frail, inactive people, the elderly and small children are particularly susceptible.
Note your symptoms
Hypothermia
This condition can develop quickly and become a serious problem with little warning. Early symptoms include severe shivering, slurred speech, apathy, impaired judgment and cold, pale skin. As the body temperature continues to drop, shivering may stop; the abdomen and chest become cold, and there is slowing of the pulse and breathing. Weakness, drowsiness and confusion may quickly lead to unconsciousness.
Frostbite
Initially the skin feels soft to the touch but numb and tingly and may turn white. As the skin freezes and becomes hard, blisters may develop. In third-degree frostbite the skin may look blue or blotchy and the underlying tissue is hard and very cold.
What you can do
Treat for hypothermia before treating frostbite.
hypothermia
Get to warm, dry shelter.
Rewarm slowly. Keep person awake.
Replace wet clothing with dry clothes, sleeping bags or blankets, and apply body heat from another person, if possible.
Give warm liquids and high-calorie food. Do not give alcohol.
What you can do
Frostbite
Rewarm only if refreezing will not occur.
Rewarm as quickly as possible.
Warm small areas with breath or by placing them inside clothing and next to bare skin.
Immerse body parts in warm (not hot) water of 104° F to 108° F for 15 to 20 minutes.
Elevate and protect warmed part.
Do not rub or massage frozen area — rubbing may cause further damage.
Protect blisters. Do not break them.
Aspirin or acetaminophen (Tylenol) may ease painful burning. NEVER give aspirin to children/teenagers. It can cause Reye’s syndrome, a rare but often fatal condition.
Watch for signs of infection.
Prevention
Dress warmly in layers with wool and polypropylene for insulation and an outer layer that is windproof and waterproof.
Wear a warm hat with ear protection. Wear mittens rather than gloves.
Pace activities. Do not become exhausted or sweaty.
Never touch cold metal with bare skin.
Avoid alcohol and smoking before spending time in the cold.
Eat well and carry extra food.
Plan ahead and carry provisions in case of emergency or sudden weather changes.
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