Heat Exhaustion and Respiratory Alkalosis

Abstract
Heat exhaustion is classically defined as man's inability to continue working in the heat due to excessive salt and water depletion (1, 2). Many of the symptoms such as syncope, headache, dizziness, extreme weakness, tetany, and cramps of the extremities and abdomen could be explained on the basis of hyperventilation secondary to heat exposure, a response first described by Haldane (3). In July of 1971 we had the opportunity to evaluate clinically patients admitted to the heat ward at the U.S. Army Hospital, Fort Polk, Louisiana. Fort Polk is a large basic training post in Western Louisiana, and during periods

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