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Published by For Life First Aid

What To Do If Someone Collapses (Step-by-Step Guide for Bystanders)

If someone suddenly collapses in front of you, it can be a frightening and overwhelming experience. But knowing what to do in those first few minutes can literally save a life. In this guide, you will learn exactly how to respond step by step — even if you have no medical training.

Step 1: Check for Danger

Before helping, quickly look around and make sure the area is safe.

  • Are there hazards such as traffic, electricity, or fire?
  • Is it safe for you to approach?

Your safety always comes first.

Step 2: Check for a Response

Gently shake the person's shoulders and ask loudly:

“Are you okay?”
  • If they respond — keep them comfortable and monitor them
  • If they do not respond — move to the next step immediately

Step 3: Call Emergency Services

If the person is unresponsive:

  • Call 999 or 112 immediately
  • Ask someone nearby to help if possible

The sooner emergency services are on the way, the better the chances of survival.

Step 4: Check Breathing

Look, listen, and feel for normal breathing:

  • Look for chest movement
  • Listen for breathing sounds
  • Feel for breath on your cheek

Important

Gasping or irregular breathing — known as agonal breathing — is not normal breathing. If they are not breathing normally, treat it as cardiac arrest.

Step 5: Start CPR Immediately

Cardiopulmonary Resuscitation (CPR) keeps blood and oxygen flowing to the brain. As covered in our course content, CPR is one of the core skills taught on the Cardiac First Responder course.

How to perform CPR:

  • Place hands in the centre of the chest
  • Push hard and fast — 100 to 120 compressions per minute
  • Allow the chest to fully recoil between compressions

Even compression-only CPR is far better than doing nothing. You can read more in our FAQ on whether compression-only CPR is adequate to save a life.

Step 6: Use a Defibrillator (AED) if Available

An Automated External Defibrillator (AED) can restart the heart. It is one of the key topics covered in our Cardiac First Responder course.

  • Turn it on and follow the voice instructions
  • Attach pads to the chest as shown on the device
  • The AED will only deliver a shock if one is needed

Anyone can use an AED — no training required. See our FAQ for a full explanation of what a defibrillator is and how it works.

Why Acting Fast Matters

  • Brain damage can begin within 4 minutes of cardiac arrest
  • Survival chances increase dramatically if CPR is started immediately
  • Using a defibrillator within 3 to 5 minutes significantly improves outcomes

Taking action quickly can double or even triple survival rates.

What If You Are Not Sure?

Many people hesitate because they are afraid of doing something wrong. Here is what our FAQ explains:

  • You cannot make things worse by starting CPR
  • If the person is not in cardiac arrest, they will show signs of life
  • Doing nothing is the biggest risk

It is always better to act. Read more in our frequently asked questions.

Learn These Skills Properly

Reading about CPR is helpful — but confidence comes from hands-on practice. On our Cardiac First Responder Course, you will learn:

  • CPR for adults, children, and infants
  • How to use a defibrillator (AED)
  • How to respond to choking, stroke, and heart attack
  • Real-life emergency scenarios using training manikins
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Final Thoughts

If someone collapses, every second counts.

You do not need to be a healthcare professional to save a life — you just need to be prepared to act. Learning CPR gives you the confidence to step in when it matters most.

If you want to feel confident handling real emergencies, get in touch or learn more about the course. Small classes, expert instruction, and practical training — so you are ready when it counts.

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