HLTH 216 Lecture Notes - Lecture 52: Cardiac Arrhythmia, Heart Failure, Caffeine
22 Mar 2018
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Air temperature drops 3. 6f every 1,000 feet. Frostbite is more common above 8,000 feet. Water conducts heat away from the body. Wind increases heat loss from skin exposed to cold air. Windchill is the combined effect of the ambient temperature and wind speed. Can conduct heat away from skin rapidly. Minimize effects of cold on the body. Can occur when conditions are cold and wet, and hands and feet cannot be kept warm and dry. Can develop in 3 to 6 hours. Skin that is tender, hot to the touch, and possibly itchy. Develops when skin on feet is exposed to moisture and cold for 12 hours or longer. Prolonged immersion of feet in cold water. Cold and moisture soften skin, causing tissue loss and infection. Red or blue blotches on the skin. Occur whenever air temperature is below freezing.
