“You Can’t Hurt Anybody”: How AEDs Help Save Lives — and Why Anyone Can Use One

Automated external defibrillators (AEDs) are becoming increasingly common in public spaces — and for good reason. These lifesaving devices are designed so that anyone, even with no medical training, can confidently step in to help someone experiencing sudden cardiac arrest.

As more AEDs are installed in public buildings, schools, and community spaces, it’s important for the public to understand how simple and safe they are to use.

This article is based in part on reporting from CBC News, which highlighted how Islanders are already saving lives by using AEDs.
🔗 Original CBC article:

‘You can’t hurt anybody’: How to save someone’s life with a defibrillator

Two responders performing CPR and preparing an AED on an unconscious person during a first aid emergency.
Responders performing CPR while preparing an AED — quick action like this can significantly increase survival during cardiac arrest.

AEDs Are Saving Lives Every Day

Chris Landry of Island First Aid Services shared that regular citizens have already used AEDs to save many lives on Prince Edward Island.

“People off the street using them, that’s what’s saving people’s lives.”

When someone goes into cardiac arrest, the heart suddenly stops functioning properly. Waiting for emergency responders can delay critical care — and every minute without help lowers survival rates significantly.

AEDs can deliver a controlled electrical shock designed to restart or stabilize the heart. Recently, the province announced plans to install AEDs in all public schools, ensuring even more communities have quick access in emergencies.


“The Machine Will Do All the Thinking”

A common concern is the fear of accidentally shocking someone who doesn’t need it. Landry emphasizes that this simply cannot happen.

“If you hook it up to someone who is not in cardiac arrest, it will not shock them. You can’t hurt anybody with this.”

AEDs automatically analyze the heart rhythm and determine whether a shock is necessary. Your main job is to apply the pads and follow the device’s prompts.

If you’re unsure whether someone is breathing or responsive, look for:

  • Chest movement

  • Pale or clammy skin

  • Signs of unresponsiveness

When in doubt, apply the AED — it will only shock if needed.


Step 1: Attach the Pads to a Bare Chest

The most important step is applying the AED pads directly to the person’s bare chest. Each pad package includes clear diagrams, and the pads themselves show exactly where to place them. Even if the pads are slightly misplaced, the AED can still function effectively.


Step 2: Turn on the AED and Follow the Prompts

Once the pads are attached, turn the machine on. The AED will guide you with calm, simple voice instructions:

  • When to stand back

  • When it is analyzing

  • Whether a shock is advised

  • When it’s safe to resume CPR

Some AED models include a feedback “puck” that evaluates your CPR compressions, letting you know whether you need to push harder or maintain your rhythm.


More AEDs Coming to Schools

The province expects all public schools to be equipped with AEDs by the end of May. As these devices become more accessible, the public should feel confident knowing they can help during a cardiac emergency.


Learn How to Save a Life

Building confidence in CPR and AED use is one of the best ways to prepare for an emergency. If you want hands-on training, consider enrolling in a CPR course that teaches both skills. A great place to start is here:
👉 https://firstaidcalgary.ca/cpr-courses/

Additional resources:

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