What is it?
This occurs when the body's normal cooling mechanisms become overwhelmed by the combination of heat and dehydration. This allows for the body temperature to rise dramatically. Fevers of 40oC (105oF) or higher may occur.

What are the symptoms?
The most common symptoms are the combination of a warm body with flushed skin and a significant lack of perspiration. A child who is hot but with dry skin is one to be concerned about. Other symptoms include feeling faint, nausea, fast breathing and abdominal pain. The nausea may overshadow the thirst mechanism, so it can be common for children with heat stroke not to be terribly thirsty.

What can/should be done at home
Prevention is really the key, which means having plenty of fluids to drink before going outside and while playing. The child should drink enough liquids so that he experiences little, if any, thirst. However, when heat exhaustion does occur, remove the child from the sun, take his clothes off and place him in a cool bath. Do not make it cold as this will cause shivering and actually increase the temperature. Encourage fluid intake.

When to get immediate attention

• If the child has had a significant increase in body temperature due to the heat, the doctor should evaluate him after being cooled at home.
• If, however, the child has simply become a bit worn-out from playing in the heat, he should be evaluated if he does not become more active within the first half-hour after cooling.
• Heat stroke can be a life-threatening emergency, so if there is any question in your mind about whether this has occurred, call your doctor.