Heat Exhaustion
Heat exhaustion is one of the heat-related syndromes. These syndromes range in severity and seriousness from mild to potentially life-threatening. Other types of heat-related illnesses include heat rash, heat cramps, heat syncope, and heat stroke. Heat exhaustion can occur when your body loses too much water or salt — usually as a result of excessive sweating or dehydration. It can begin suddenly or happen over time, usually after working, exercising, or playing in the heat. Heat exhaustion signs and symptoms include: • Cool, moist skin with goose bumps when in the heat • Heavy sweating • Faintness • Dizziness • Fatigue • Weak, rapid pulse • Low blood pressure upon standing • Muscle cramps • Nausea or vomiting • Headache • Extreme thirst • Mild confusion • Decreased urine output If you suspect heat exhaustion Untreated, heat exhaustion can lead to heatstroke, which is a life-threatening condition. If you suspect heat exhaustion, take these steps immediately: • Move the person out of the heat and into a shady or air-conditioned place. • Lay the person down and elevate the legs and feet slightly. • Remove tight or heavy clothing. • Have the person sip chilled water, a decaffeinated sports drink containing electrolytes or other nonalcoholic beverage without caffeine. • Cool the person by spraying or sponging with cool water and fanning. • Monitor the person carefully. Contact a health care provider if signs or symptoms worsen or if the person doesn't improve after taking first-aid measures. Call 911 or your local emergency number if the person's condition gets worse, especially if he or she experiences: • Fainting • Agitation • Confusion • Seizures • Inability to drink • Core body temperature — measured by a rectal thermometer — of 104 F (40 C) (heatstroke)
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