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Heat emergencies Considerations: Heat illnesses are easily preventable--take necessary precautions in hot weather. Children, elderly, and obese people are particularly at risk of developing heat illness. However, even a top athlete in superb condition can succumb to heat illness if he or she ignores the warning signs. Without intervention and resolution of the problem, muscle cramps (caused by loss of salt from heavy sweating ) can lead to heat-exhaustion (caused by dehydration ) which can lead to heatstroke (which can cause shock , brain damage, and death). Causes: - cardiovascular disease
- dehydration
- drug usage such as amphetamines, phenothiazines, and anticholinergics
- excess clothing
- exercise , prolonged or excessive
- high temperatures or humidity
- lack of acclimatization
- sweat gland dysfunction
- alcohol use
Symptoms: Early symptoms: Later symptoms of heat-exhaustion: Symptoms of heatstroke: Do not: - DO NOT underestimate the seriousness of heat illness, especially if the victim is a child, is elderly, or is injured.
- DO NOT give the victim medications that are used to treat fever (such as aspirin). They will not help, and they may be harmful.
- DO NOT give the victim salt tablets.
- DO NOT overlook possible complications resulting from a victim's other medical problems (such as high blood pressure ).
- DO NOT give the victim liquids that contain alcohol or caffeine . They will interfere with the body's ability to control its internal temperature.
- DO NOT give the victim anything by mouth (not even salted drinks), if heatstroke is suspected.
Call Your Healthcare Provider if: - the victim's condition does not improve with treatment.
First Aid: 1. Remove the victim from the heat and have the victim lie down in a cool place with feet elevated about 12 inches. 2. Apply cool, wet cloths (of cool water directly) to the victim's skin and use a fan to lower temperature. Avoid using alcohol rub. Place cold compresses on the victim's neck, groin, and armpits. 3. Give the victim beverages to sip (such as Gatorade) or make a salted drink by adding a teaspoon of salt per quart of water. Give a half cup every 15 minutes. Cool water will do if salt beverages are not available. 4. For muscle cramps , massage affected muscles gently but firmly until they relax. 5. If the victim shows signs of shock ( bluish lips and fingernails and decreased alertness ), administer first aid for shock. 6. If the victim starts having seizures , protect him or her from injury and give convulsion, first aid . 7. If the victim loses consciousness, apply first aid for unconsciousness . 8. For serious heat illness, keep the victim cool until you get medical help. Prevention: - Wear loose-fitting, lightweight clothing in hot weather.
- Rest frequently.
- Avoid hot places.
- Drink adequate fluids.
- Avoid overheating if you are taking drugs that impair heat regulation, or if you are obese , or elderly.
- Exercise gradually and increase salt and water intake.
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