AED: Steps to Saving a Life During a Cardiac Emergency

Automated External Defibrillators (AEDs) are portable devices that can deliver an electric shock to the heart in case of sudden cardiac arrest. They are designed to be used by non-medical personnel, which can increase the chances of survival for a person experiencing a cardiac emergency. 

However, knowing how to use an AED correctly is essential to ensure the best possible outcome. This article will discuss the recommended steps for using an AED song with where to find an AED supply store. 

Step 1: Call for Emergency Medical Services

The first step in using an AED is to call for emergency medical services. This is important because AEDs are not a substitute for professional medical care. 

If someone is experiencing a cardiac emergency, calling 000 or your local emergency number is the first and most crucial step. The dispatcher can give instructions on what to do until help arrives and guide you through using an AED if necessary.

Step 2: Turn On the AED

Once you have called for emergency medical services, turn on the AED. Most AEDs have a power button to press to turn them on. Some models may turn on automatically when you open the device. You must also attach the AED electrodes to the person's chest.

Step 3: Prepare the Person for Defibrillation

Before using the AED, you must prepare the person for defibrillation. This includes removing clothing or jewellery that may interfere with the AED's electrodes. You should also ensure that the person's chest is dry and free of fluids, such as sweat or water. If the person has a hairy chest, you may need to shave the area where the AED electrodes will be placed.

Step 4: Attach the AED Electrodes

Once the person is prepared, you can attach the AED electrodes. Most AEDs come with pre-connected electrode pads that you can peel and stick onto the person's chest. The pads have a diagram that shows where to place them. Typically, one pad goes on the upper right chest and the other on the lower left side. Ensure that the electrodes are firmly attached to the person's skin and that there are no air pockets between the pads and the chest.

Step 5: Analyse the Person's Heart Rhythm

Once the electrodes are attached, the AED will analyse the person's heart rhythm to determine if a shock is needed. You should ensure no one touches the person or the AED during this time. 

Some AEDs may require pressing a button to start the analysis, while others will begin automatically once the electrodes are attached.

Step 6: Deliver the Shock if Necessary

If the AED determines that a shock is necessary, it will prompt you to deliver it. The AED will give you clear instructions on what to do, and you should follow them carefully. Typically, you will need to press a button to deliver the shock. Ensure no one touches the person or the AED when the shock is delivered.

Step 7: Perform CPR if Necessary

If the AED does not deliver a shock or the person's heart rhythm does not improve, you should perform CPR (Cardiopulmonary Resuscitation). CPR combines chest compressions and rescue breaths to help keep the person's blood flowing until professional medical help arrives. If you are not trained in CPR, the AED will give you instructions on what to do.

Step 8: Continue to Follow the AED's Instructions

After delivering a shock or performing CPR, you should continue to follow the AEDs instructions until emergency medical services arrive. The AED may prompt you to continue performing CPR or to check the person's pulse and breathing. Ensure you follow the AED's instructions carefully, as they are designed to help you provide the best possible care to the person in need.


Automated External Defibrillators (AEDs) are proven to save lives in emergencies. They are increasingly used in public places, workplaces and schools and are becoming more widely available and accessible. AEDs are simple to use and highly effective and can provide a vital lifeline in a medical emergency. 

By having an AED available, trained staff can ensure that those suffering from sudden cardiac arrest receive treatment quickly and efficiently. This can significantly improve survival rates and reduce the long-term health risks of sudden cardiac arrest. With the proper training, resources, and maintenance, we can continue to provide life-saving AEDs.

Restart the Heart helps Australian homes and establishments prepare for possible heart emergencies. We offer defibrillator supplies for all brands—from defibrillators to other first-aid necessities. Explore our product collections and place an order at our AED supply store today!