A
group of conditions due to overexposure to or overexertion in
excess environmental temperature.
It includes
heat cramps, which are non-emergent and treated by
salt replacement;
heat exhaustion, which is more serious, treated with
fluid and
salt replacement; and heatstroke, a
condition most commonly affecting extremes of age, especially the elderly, accompanied by convulsions, delusions, or
coma and treated with cooling the
body and
replacement of fluids and salts.