Do Defibrillators Restart the Heart?

Do defibrillators restart the heart?

When someone collapses from sudden cardiac arrest, every second counts. One of the most common questions people ask is: do defibrillators actually restart the heart? The answer is both simple and powerful. Yes, defibrillators can restore a normal heart rhythm, but not in the way many people imagine from TV shows.

What a Defibrillator Really Does

A defibrillator, also known as an AED (Automated External Defibrillator), does not “jump-start” a stopped heart like a car battery. Instead, it delivers a carefully measured electrical shock designed to stop chaotic, life-threatening heart rhythms such as ventricular fibrillation or ventricular tachycardia.

By halting these irregular rhythms, the defibrillator gives the heart the chance to reset itself and return to its normal rhythm. You can browse our full defibrillator range here to see how different models are designed to handle emergencies.

Common Misconceptions

Pop culture often shows defibrillators being used on anyone who is unconscious. In reality:

• Defibrillators only work on certain rhythms. If the heart is completely flat-lined (asystole), an AED cannot restart it.
• CPR is still essential. High-quality CPR keeps blood and oxygen flowing until a defibrillator can be applied.
• AEDs are safe and easy. Modern devices give voice prompts and won’t deliver a shock unless a shockable rhythm is detected.

Why Early Defibrillation Saves Lives

According to the Australian Resuscitation Council, every minute without defibrillation reduces the chance of survival by 7 – 10%. With a defibrillator close by, survival rates can double or even triple. This is why having AEDs in workplaces, schools, gyms, and community areas is so important.

First Aid AE has placed over 10,000 defibrillators across Australia, ensuring businesses and communities are prepared when emergencies strike. See what our customers say on Google.

Spotlight on the Zoll AED Plus Defibrillator

One of the most advanced and user-friendly AEDs on the market is the Zoll AED Plus Defibrillator.

What makes it unique?

• Real-time CPR feedback: Provides visual and voice prompts to guide rescuers.
• Durable design: Built to withstand tough environments, perfect for workplaces and community spaces.
• Easy for anyone to use: Clear instructions mean you don’t need medical training to save a life.

If your workplace is ready to invest in a reliable AED, the Zoll AED Plus is one of the best choices for peace of mind and compliance.

Defibrillators in the Workplace

Australian workplace safety standards recommend having an AED available in high-risk environments. Industries such as construction, manufacturing, and fitness centres are particularly vulnerable to cardiac events. By installing a defibrillator, employers not only meet compliance requirements but also provide peace of mind for staff and customers.

Final Thoughts

So, do defibrillators restart the heart? Yes, but their role is more about resetting the heart’s rhythm than powering it back to life. When combined with CPR and early emergency response, an AED dramatically increases survival chances in sudden cardiac arrest.

Having one nearby isn’t just a safety measure, it’s an investment in saving lives.

Talk to us about Choosing a Defibrillator for your Workplace.

Looking to equip your workplace or community with a life-saving device?
Explore our full Defibrillator Range or speak with our experts today about why the Zoll AED Plus is the right choice for your needs.