Western Australia’s climate is unforgiving, particularly during the warmer months. Extended heatwaves, outdoor work, mining, construction, sport, and even everyday activities place people at real risk of heat-related illness. Every year, Australians are hospitalised due to heat exhaustion and heat stroke—conditions that are preventable with the right knowledge and first aid response.
This article explains heat-related illnesses using Australian best practice guidance, outlines early warning signs, and provides clear first aid steps aligned with DRSABCD principles. It is essential reading for workplaces, carers, parents, outdoor workers, and anyone completing a First Aid course in Perth.
What Is Heat-Related Illness?
Heat-related illness occurs when the body can no longer regulate its temperature effectively. It exists on a spectrum, progressing from mild dehydration to life-threatening heat stroke.
Common types include:
- Dehydration
- Heat cramps
- Heat exhaustion
- Heat stroke (medical emergency)
Western Australia’s dry heat can be deceptive—people often underestimate fluid loss because sweat evaporates quickly.
Signs and Symptoms
Dehydration
- Thirst
- Dark urine
- Fatigue
- Dizziness
Heat Exhaustion
- Heavy sweating
- Pale, cool, clammy skin
- Headache
- Nausea or vomiting
- Muscle cramps
Heat Stroke (DANGER)
- Hot, dry skin or stopped sweating
- Confusion or altered consciousness
- Seizures
- Collapse or unconsciousness
- Body temperature above 40°C
Heat stroke is a medical emergency requiring immediate ambulance response.
First Aid Response (DRSABCD)
D – Danger
Move the person to a cool, shaded area away from heat sources.
R – Response
Check responsiveness. If unresponsive, call Triple Zero (000).
S – Send for Help
Call 000 immediately for suspected heat stroke or collapse.
A/B – Airway & Breathing
Ensure the airway is clear and breathing is normal.
C – CPR
If not breathing normally, commence CPR and use an AED if available.
Cooling Measures
- Remove excess clothing
- Apply cool packs to neck, groin, and armpits
- Fan the person
- Offer cool water if conscious and able to swallow
Do not give fluids to an unconscious person.
Prevention Strategies
- Drink water regularly (not just when thirsty)
- Schedule outdoor work early morning
- Wear light-coloured, breathable clothing
- Take shaded rest breaks
- Never leave children or pets in vehicles
Workplaces in WA have a duty of care to manage heat exposure risks.
Why Heat Illness Training Matters
Heat-related emergencies escalate fast. First aid training empowers people to:
- Recognise early warning signs
- Act decisively
- Prevent fatalities
- Meet workplace safety obligations
Courses such as HLTAID011 Provide First Aid cover environmental emergencies relevant to Western Australia.
Conclusion
Heat-related illness is common, preventable, and potentially fatal. Knowing how to respond can save lives—especially in WA’s harsh climate. Whether at work, sport, or home, first aid knowledge makes a difference.