heat exhaustion

heat exhaustion
a condition characterized by faintness, rapid pulse, nausea, profuse sweating, cool skin, and collapse, caused by prolonged exposure to heat accompanied by loss of adequate fluid and salt from the body. Also called heat prostration.
[1935-40]

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Response of the body to excessive heat.

The body temperature rises moderately and heavy perspiration persists. Heat exhaustion results from inadequate water and salt intake and can lead to dehydration and collapse. It may progress to heatstroke if not treated by lying down in a cool place and drinking fluids, preferably water with salt added.

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Universalium. 2010.

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  • heat exhaustion — fatigue and collapse due to the low blood pressure and blood volume that result from loss of body fluids and salts after prolonged or unaccustomed exposure to heat. It is most common in new arrivals in a hot climate and is treated by giving… …   The new mediacal dictionary

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