injuries poisoning
Heat Exhaustion
Introduction
Heat exhaustion is a non–life-threatening clinical syndrome of weakness, malaise, nausea, syncope, and other nonspecific symptoms caused by heat exposure. Thermoregulation and central nervous system (CNS) function are not impaired, but patients are usually dehydrated and may have mild elevations of body temperature (<40° C). Treatment involves rest in a cool environment and replacing fluids and electrolytes. Rarely, severe heat exhaustion after hard work may be complicated by Rhabdomyolysis , myoglobinuria, and (See also Overview of Heat Illness .) 