---
title: "Heat-Related Emergencies | First Aid Glossary"
description: "Health issues caused by exposure to high temperatures, like heatstroke. Learn warning signs, risks, and first aid steps that help you respond safely."
canonical: "https://www.australiawidefirstaid.com/resources/glossary/heat-related-emergencies"
---

# Heat-Related Emergencies

[Resources](https://www.australiawidefirstaid.com/resources) › [Glossary](https://www.australiawidefirstaid.com/resources/glossary)

## What are Heat-Related Emergencies?

Heat-related emergencies, such as heat exhaustion and heat stroke, occur when the body cannot cool itself effectively in high temperatures.

Heat-related emergencies occur when the body is unable to cool itself adequately, leading to conditions such as dehydration, heat cramps, heat exhaustion, and heat stroke. These emergencies often arise during periods of high temperatures and humidity, especially when individuals are engaged in strenuous physical activity. Dehydration, the most common heat-related condition, occurs when fluid loss exceeds intake, leading to symptoms like dry mouth, thirst, and reduced urine output. Heat cramps result from a loss of salts and electrolytes due to excessive sweating and cause painful muscle spasms. Heat exhaustion, a more severe condition, involves symptoms such as heavy sweating, weakness, dizziness, and nausea.

Heat stroke is the most severe heat-related emergency and can be life-threatening. It occurs when the body's temperature regulation system fails, leading to a body temperature above 40°C (104°F). Symptoms of heat stroke include confusion, seizures, loss of consciousness, hot and dry skin, and rapid heart rate. Immediate first aid for heat stroke includes moving the casualty to a cooler environment, removing excess clothing, and applying cool water or ice packs to the body. It is crucial to call emergency services immediately. For heat exhaustion and heat cramps, the first aid steps involve moving the person to a cool place, giving small sips of water, and applying cool, wet cloths to the skin. Preventing heat-related emergencies involves staying hydrated, avoiding strenuous activities during peak heat, and wearing appropriate clothing.

## First Aid for Heat-Related Emergencies

1. Move to a Cool Area: Get the casualty out of the heat and into a cool, shaded place.
2. Hydrate: Provide water to drink, if the casualty is conscious and able to swallow.
3. Cool the Body: Use cool, damp cloths or a fan to lower body temperature.
4. Seek Medical Help: Call emergency services if symptoms are severe or do not improve.

> Emergencies caused by high temperatures, such as heatstroke or dehydration.

## Related video: Help someone recover from heatstroke with this action

[Watch on YouTube](https://www.youtube.com/watch?v=iayJg01xr6M)

## Learn this hands-on

A nationally accredited first aid course covers this and much more. [Find a course and check live session availability](https://www.australiawidefirstaid.com/#find-course).

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