Heat Related Emergencies

Heat-related emergencies can become life-threatening quickly, especially when a person is exposed to high temperatures, high humidity, strenuous activity, or inadequate hydration. Recognizing the warning signs and taking action early can prevent a serious emergency.

1. Heat Cramps

Heat cramps are painful muscle spasms that commonly occur after strenuous activity in hot conditions. They are often associated with significant sweating and loss of fluids and electrolytes.

**Common signs: **

* Painful muscle cramps or spasms
* Heavy sweating
* Thirst
* Fatigue

**First aid: **

* Stop physical activity and move the person to a cooler location.
* Allow the person to rest.
* Gently stretch and massage the affected muscles.
* Encourage fluids if the person is alert and able to drink safely.

If cramps are severe, persistent, or accompanied by signs of heat exhaustion or heat stroke, seek medical assistance.

2. Heat Exhaustion

Heat exhaustion occurs when the body loses excessive amounts of water and salt through sweating and can no longer effectively regulate its temperature.

**Signs and symptoms may include: **

* Heavy sweating
* Cool, moist, pale, or flushed skin
* Weakness or fatigue
* Headache
* Dizziness
* Nausea or vomiting
* Muscle cramps
* Rapid pulse
* Feeling faint

**First Aid for Heat Exhaustion**

1. Move the person to a cool or air-conditioned location.
2. Have the person lie down and rest.
3. Remove or loosen unnecessary clothing.
4. Cool the person with cool, wet towels, fans, or other appropriate cooling methods.
5. If the person is fully alert and able to swallow safely, provide cool fluids.
6. Closely monitor the person for worsening symptoms.

**If the person’s condition does not improve quickly or symptoms worsen, seek emergency medical assistance. **

3. Heat Stroke — A Life-Threatening Emergency

Heat stroke is the most serious heat-related emergency. It occurs when the body’s ability to regulate temperature fails, causing body temperature to rise to dangerous levels.

**Possible signs include: **

* Altered mental status or confusion
* Unusual behavior
* Loss of coordination
* Seizures
* Loss of consciousness
* Very hot skin
* Rapid breathing
* Rapid pulse
* Possible nausea or vomiting

**Important: ** A person with heat stroke may or may not be sweating. Do not wait for the person to stop sweating before treating heat stroke as an emergency.

** First Aid for Suspected Heat Stroke**

**Call 911 immediately. **

While waiting for EMS:

* Begin rapid cooling immediately.
* Move the person to a cooler environment.
* Remove excess clothing.
* Use cold-water immersion when practical and safe, particularly for an exertional heat emergency.
* If immersion is not available, use cold, wet towels or other aggressive cooling methods and continue cooling.

* Monitor the person’s breathing and responsiveness.
* Be prepared to provide CPR and use an AED if the person becomes unresponsive and is not breathing normally.

**Do not give fluids to a person who is confused, unconscious, having a seizure, or unable to swallow safely. **