Heatstroke Symptoms  

Heatstroke is the most severe heat illness as it could be life threatening. It is a dangerous condition that often results from heavy activates (e.g. workout) in hot or humid environments along with little fluid intake, causing the internal temperature to rise. It is potentially life-threatening because the body's normal means for dealing with heat stress, such as temperature control, are lost.

• Heatstroke poses a greater risk to young children, older adults, overweight people and people with a weakened ability to sweat.
• Other risk factors include dehydration, alcohol use, cardiovascular disease and some medications.

Heatstroke symptoms include the following:

• Noticeably elevated body temperature (more than 40 C).
• Mental changes e.g. personality changes, confusion, irritability, or unconsciousness.
• Fatigue.
• Skin hot and dry, unless heatstroke resulted from exertion, in that case the skin may be moist.
• Fast heartbeat.
• Rapid and shallow breathing.
• Blood pressure is too high or too low.
• Sweating stops.
• Feeling dizzy or lightheaded.
• Headache.
• Nausea.

What to do when suspecting heatstroke?

• If achievable, move the person out of the sun and into an air-conditioned space. Otherwise, try to provide them with as much shade as possible.
• Call for emergency medical assistance (Dial 997).
• If possible, carefully cool the person's body by covering him or her with damp sheets, ice packs or by spraying with cool water.
• Fan air onto the person.
• If able, slowly have the person drink cool water or juice.

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This information is provided by the NGHA Content Advisory Board and is not intended to replace the medical advice of your health care provider.