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i <br />� Table 4-2 <br /> Signs and Symptoms of Heat Stress <br /> Type,of Heat Stress Causes and Symptoms <br /> Heat Rash Prickly heat is caused by irritation of the skin due to extended <br /> contact with sweat and/or sweat-soaked clothing Can be relieved <br /> by allowing sweat to effectively evaporate <br /> Heat Cramps Caused by heavy sweating with inadequate electrolyte replacement <br /> Signs and symptoms include <br /> --Muscle spasms, and <br /> --Pain in the hands, feet, and abdomen <br /> Heat Exhaustion Occurs from increased stress on vanous body organs, including <br /> inadequate blood circulation due to cardiovascular insufficiency or <br /> dehydration Signs and symptoms include <br /> --Pale, cool, moist skin, <br /> --Heavy sweating, <br /> --Dizziness, <br /> --Nausea, and <br /> --Fainting <br /> I <br /> Heat Stroke The most serious form of heat stress Temperature regulation fails <br /> and the body temperature rises to critical levels Immediate action <br /> must be taken to cool the body before serious injury and death <br /> occur Competent medical help must be obtained Signs and <br /> symptoms include <br /> --Red, hot, usually dry skin, <br /> --Lack of or reduced perspiration, <br /> --Nausea, <br /> --Dizziness and confusion, <br /> --Strong, rapid pulse, and <br /> --Coma <br /> 4-5 <br />