Heatstroke

Unlike heat exhaustion and heat-related cramps, heat stroke can be far more life threatening and can turn into a true medical emergency. Heat stroke (hyperthermia) abnormally elevates the body's core temperature. One of the major causes of heatstroke is dehydration. The body regulates normal temperatures through sweat. However, with heatstroke the body's temperature is elevated very high and the body cannot produce normal sweat fast enough to cool down the body.

Warning signs include hot, flushed skin that doesn't appear sweaty, high body temperature, fast pulse, difficulty breathing, hallucinations, strange behavior/agitation and seizures.

Heatstroke should not be taken lightly and 911 should be immediately called. If left untreated, heatstroke could cause a person to lose consciousness and slip into a coma. If emergency services aren't readily available, first aid should be performed on a heatstroke victim. Lie the person down in a cool, shady area and remove his clothing. Place cool ice packs under his groin and armpits. Apply cool water (not cold) directly to the skin with a washcloth (or gently spray him with a hose if outside). If available, monitor his body temperature with a thermometer until you stabilize it to at most 102 degrees F).

The best way to avoid heatstroke is to remain properly hydrated with fluids if you work outside in extreme heat. Avoid alcohol and caffeine (which quickly dehydrate the body). Remember to take frequent breaks in the shade. If you show signs of heat exhaustion, do not continue working in the heat. Heat exhaustion can sometimes lead directly to heatstroke.