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Martha BrownB4 - Homeostasis2/2/11

Heat stroke and Hypothermia
Heat stroke

What is it?

Heat stroke is a form of hyperthermia, an abnormally raised body temperature with physical and mental
symptoms. Unlike heat cramps and heat exhaustion, two other forms of hyperthermia that are less severe,
heat stroke is a true…

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Treatment of Heatstroke

Victims of heat stroke must receive immediate treatment to avoid permanent organ damage. First and
foremost, cool the victim. Always notify emergency services (999) immediately. If their arrival is delayed,
they can give you further instructions for treatment of the victim.

Move the…

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Conduction only accounts for 2-3% in dry conditions, but this figure can increase to 50% if the victim
is immersed in cold water.
Convection accounts for 10%, while 2-9% is lost to heating inspired air.
20-27% is lost as a result of evaporation from the skin…

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Clinical death occurs.

Because of decreased cellular activity in stage 3 hypothermia, the body will actually take longer to undergo
brain death. As the temperature decreases further physiological systems falter and heart rate, respiratory
rate, and blood pressure all decreases. This results in an expected HR…

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Martha BrownB4 - Homeostasis2/2/11

Some cold exposure, such as cold hands and feet, may be treated with home care techniques like
hot-water bottles.


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