Heat Stroke
Heat stroke is the most serious HRI—it is life threatening. It occurs when the body becomes unable to control its temperature.
• Body temperature rises rapidly
• Sweat process fails
• Body is unable to cool down
Body temperature may rise to 106°F or higher within 10-15 minutes. Heat stroke can cause death or permanent disability if emergency treatment is not provided.
Warning signs of heat stroke vary but may include
• An extremely high body temperature (104°F or above, rectally*)
• Red, hot, and dry or moist skin
• Rapid, strong pulse
• Throbbing headache
• Dizziness
• Nausea
• Confusion
• Unconsciousness