What to do if you think someone has heat exhaustion or heatstroke

Health

## Heatwave Alert: Distinguishing Heat Exhaustion from Heatstroke and How to Act Fast

As temperatures soar, understanding the critical differences between heat exhaustion and heatstroke is not just recommended, but essential. These conditions, ranging from serious discomfort to life-threatening emergencies, demand prompt recognition and decisive action. Knowing the signs and appropriate first aid can significantly impact outcomes, potentially saving a life.

### Recognizing Heat Exhaustion: A Warning Sign

Heat exhaustion is a milder but significant form of heat-related illness, occurring when the body overheats and loses too much water and salt, primarily through sweating. While serious, it typically does not cause long-term damage if treated promptly.

**Key Signs of Heat Exhaustion:**

* **Heavy sweating:** Often with cold, clammy skin.
* **Feeling faint or dizzy.**
* **Headache.**
* **Nausea or vomiting.**
* **Muscle cramps.**
* **Weakness or fatigue.**
* **Rapid, weak pulse.**
* **Pale skin.**

**What to Do for Heat Exhaustion:**

If you suspect someone is suffering from heat exhaustion, immediate action is crucial to prevent progression to heatstroke:

1. **Move to a cooler environment:** Get the person into a shaded area, an air-conditioned building, or in front of a fan.
2. **Lie down and elevate legs:** This helps restore blood flow to the brain.
3. **Loosen or remove clothing:** Help cool the body by removing unnecessary layers.
4. **Rehydrate:** Offer sips of cool water or a sports drink (if fully conscious and able to swallow).
5. **Cool the body:** Apply cool, wet cloths or ice packs to the skin, particularly on the neck, armpits, and groin. A cool shower or bath can also help.
6. **Monitor:** Stay with the person and monitor their condition. If symptoms worsen, don’t improve within an hour, or if the person loses consciousness, seek immediate medical attention.

### Understanding Heatstroke: A Medical Emergency

Heatstroke is the most severe form of heat illness and a medical emergency. It occurs when the body’s temperature regulation system fails, leading to a dangerously high core body temperature (typically 103°F/40°C or higher). If left untreated, heatstroke can rapidly damage the brain, heart, kidneys, and muscles, potentially leading to permanent disability or death.

**Key Signs of Heatstroke (Call Emergency Services IMMEDIATELY):**

* **High body temperature:** A core body temperature of 103°F (40°C) or higher.
* **Altered mental state or behavior:** Confusion, disorientation, slurred speech, irritability, agitation, seizures, or unconsciousness.
* **Hot, red, and *dry* skin:** Though sometimes skin may be moist if still sweating.
* **Nausea and vomiting.**
* **Rapid, strong pulse.**
* **Rapid, shallow breathing.**
* **Throbbing headache.**

**What to Do for Heatstroke (While Awaiting Emergency Services):**

Heatstroke requires immediate professional medical intervention. **Call emergency services (e.g., 911) without delay.** While waiting for help to arrive, take aggressive measures to cool the person:

1. **Move to a cooler area:** Get the person indoors or into shade.
2. **Remove excess clothing:** Help expose skin to aid cooling.
3. **Aggressively cool the person:**
* Immerse them in a tub of cool water if available and safe.
* Cover them with cool, wet sheets or towels.
* Place ice packs or cool, wet cloths on the head, neck, armpits, and groin.
* Fan them continuously to promote evaporative cooling.
4. **Do not give fluids** if the person is unconscious or experiencing an altered mental state, as this could lead to choking.

### Who Is Most at Risk?

Certain individuals are more vulnerable to heat-related illnesses:

* **Elderly individuals** and **infants/young children** (who have less efficient temperature regulation).
* **Athletes** and **outdoor workers** (due to prolonged exposure and physical exertion).
* **Individuals with chronic medical conditions** (e.g., heart disease, diabetes, kidney disease).
* **People taking certain medications** (e.g., diuretics, antihistamines, some antidepressants).
* **Those without access to air conditioning.**

### Prevention is Key

Proactive measures are crucial during periods of high heat: stay hydrated by drinking plenty of water, wear light-colored and loose-fitting clothing, avoid strenuous activities during the hottest parts of the day, seek shade, and never leave anyone (or pets) in a parked car.

Understanding these distinctions and knowing how to respond can be life-saving. In hot weather, vigilance and rapid action are paramount to preventing serious health consequences.