Heat exhaustion signs and symptoms can include heavy perspiration; nausea; lightheadedness; severe thirst; dilated pupils; and red or pale, cool skin.
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Heat Exhaustion, First Aid 

Picture of Heat Exhaustion, First Aid: Heat exhaustion signs and symptoms can include heavy perspiration; nausea; lightheadedness; severe thirst; dilated pupils; and red or pale, cool skin. Divider line
Heat exhaustion signs and symptoms can include heavy perspiration; nausea; lightheadedness; severe thirst; dilated pupils; and red or pale, cool skin.
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When to Seek Medical Care
If you suspect heatstroke, if there is no improvement with the above self-care measures after an hour, if symptoms worsen, or if there are signs of shock, seizure, or loss of consciousness, seek emergency medical care.
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Last Modified: 22 Dec 2008
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