An elevated body temperature related to the body's inability to promote heat loss or reduce heat production is known as:
a. hyperthermia.
b. heat stroke.
c. hypothermia.
d. fever of unknown origin.
A
An elevated body temperature related to the body's inability to promote heat loss or reduce heat production is hyperthermia (hyper- means excessive; therm means heat). Prolonged exposure to the sun or high environmental temperatures overwhelms the body's heat loss mechanisms. Heat also depresses hypothalamic function. These conditions cause heat stroke, a dangerous heat emergency, defined as a body temperature of 40.2° C (104.4° F) or more. Heat loss during prolonged exposure to cold overwhelms the body's ability to produce heat, causing hypothermia. The term fever of unknown origin (FUO) refers to a fever whose cause cannot be determined.
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