Lesson 53: Crush Injuries
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📘 Lesson Summary
Crush injuries occur when part of the body is subjected to prolonged pressure, often during serious incidents such as vehicle collisions, machinery accidents, or structural collapse.
These injuries can be life-threatening, particularly due to the risk of crush syndrome, which can occur when pressure is released.
In this lesson, you will learn how to recognise and manage crush injuries safely.
⭐ What is a Crush Injury?
A crush injury happens when a body part is trapped under pressure.
This can cause:
- Damage to muscles and tissues
- Reduced blood flow
- Build-up of toxins in the affected area
⚠️ Crush Syndrome
Crush syndrome is a serious condition that can occur when pressure is released after prolonged entrapment.
👉 It can develop after approximately 15 minutes or more
When pressure is released:
- Toxins are suddenly released into the bloodstream
- This can lead to organ failure or cardiac arrest
🔍 Recognition
- History of being trapped or crushed
- Pain and swelling
- Numbness or loss of sensation
- Signs of shock
- Possible limb deformity
🚨 Treatment
🩺 Step 1: Ensure Safety
- Ensure the scene is safe
- Call 999 / 112 immediately
🩺 Step 2: Time Matters
👉 If the casualty has been trapped for LESS than 15 minutes:
- It may be safe to remove the pressure
👉 If trapped for MORE than 15 minutes:
- DO NOT release the pressure
- Wait for emergency services
🩺 Step 3: Ongoing Care
- Reassure the casualty
- Keep them warm
- Monitor breathing and responsiveness
- Treat for shock
⚠️ Important Points
- Do not attempt to move heavy objects without assistance
- Do not release pressure after prolonged entrapment
- Always prioritise your own safety
💡 Key Takeaways
- Crush injuries can be life-threatening
- Crush syndrome can occur after 15 minutes
- Call emergency services immediately
- Do not release pressure if trapped for a prolonged period
- Monitor and support the casualty