By Emergency Response Training Services
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October 11, 2023
We often hear about the importance of being CPR certified or learning how to perform cardiopulmonary resuscitation, as it can be a crucial skill in saving someone's life during a medical emergency. However, CPR alone may not always be enough to revive someone experiencing sudden cardiac arrest. This is where an automated external defibrillator (AED) becomes essential. Let us explore what is automated external defibrillator used for. What is Automated External Defibrillator (AED)? An automated external defibrillator is a portable electronic device that helps in the treatment of sudden cardiac arrest (SCA). SCA occurs when the heart unexpectedly stops beating efficiently, depriving vital organs of oxygenated blood. It is a life-threatening condition that requires immediate intervention to restore the heart's normal rhythm. What is Automated External Defibrillator Used For? So, what exactly does an AED do? This advanced medical device utilizes an electrical shock to restore the heart's natural rhythm during a cardiac arrest. It achieves this by delivering an electrical current to the heart muscles, effectively resetting the heartbeat. The automated nature of the device makes it highly user-friendly, even for individuals with minimal medical training. The primary goal of an AED is to treat a specific type of arrhythmia called ventricular fibrillation (VF). In VF, the heart's electrical system becomes chaotic, resulting in a rapid and irregular heartbeat. This condition inhibits the heart from effectively pumping blood, leading to the sudden collapse of the individual. An AED identifies VF and then delivers a controlled electric shock to restore the heart's normal rhythm. AEDs are commonly found in public places, such as offices, shopping malls, airports, and schools. Their widespread availability is an acknowledgment of the importance of quick intervention during sudden cardiac arrest. While emergency medical services are typically contacted immediately during such situations, the time it takes for them to arrive on the scene may be critical. The sooner an AED is used, the higher the chances of a positive outcome. It is important to note that using an AED is relatively simple, and it is designed to guide the user through the process with voice prompts and visual indicators. The device typically has two adhesive pads that need to be placed on the patient's chest. These pads detect the heart's rhythm and provide the necessary information to the AED. Once the pads are in place, the device will analyze the heart's rhythm and determine if a shock is required. If advised, it will automatically charge and deliver the shock, prompting the user to stand clear. AEDs are remarkably safe and designed to minimize the risk of human error. They will only deliver a shock if a specific type of arrhythmia is detected, significantly reducing the likelihood of unintentional shocking. Additionally, they automatically adjust the energy level of the shock based on the individual's needs, ensuring the right amount of electricity is delivered to achieve the desired result. Studies have shown that the use of an AED, alongside CPR, can dramatically improve the survival rate of individuals experiencing sudden cardiac arrest. Every minute without treatment decreases the chances of survival by approximately 10%. Therefore, having a readily accessible AED can make an immense difference in these critical situations. How to use an AED Step 1: Assess the Situation and Activate Emergency Medical Services (EMS) The first step when encountering a medical emergency is to assess the situation. Ensure that the area is safe for both you and the victim. Call for help, either by shouting for assistance or dialing emergency services (911 in most countries). Remember, swift action is crucial in cardiac arrest situations. Step 2: Locate an AED AEDs are often found in public spaces, workplaces, airports, shopping malls, sports facilities, and other high-traffic areas. Look for the universal AED symbol, often displayed on walls or in easily accessible cabinets. If one is not readily available, delegate someone nearby to search for an AED while you continue to assess the patient or perform CPR if necessary. Step 3: Power On the AED and Attach Electrode Pads to the Victim’s Chest Once the AED is accessible, power it on. Most AEDs provide clear visual and audio prompts to guide users through the process. Remove any clothing or moisture from the victim's chest, as it is crucial to have a clean, dry surface for proper adhesion. Take out the electrode pads and attach them to the patient's bare chest, following the illustrations or labeled placement instructions on the pads. Step 4: Analyze the Heart Rhythm and Follow AED Prompts After the pads are correctly placed on the victim's chest, the AED will begin analyzing the heart rhythm. Stand clear and avoid touching the victim during this phase. The AED's sophisticated algorithms will determine whether an electric shock is necessary or if CPR should be continued. Just remember to stay calm and follow the AED's prompts precisely. Step 5: Administer a Shock (If Advised) and Perform CPR If the AED determines that a shock is required, it may prompt you to press the shock button. Ensure that no one, including you, is in contact with the victim before pressing the button. After the shock delivery, resume CPR immediately, as instructed by the AED. If the AED advises against a shock, continue CPR until EMS professionals arrive or the victim shows signs of recovery. Step 6: Continue to Follow AED Instructions Until Help Arrives Once CPR is initiated, the AED will guide you through the necessary steps, including when to stop and resume compressions. It will monitor the patient's heart rhythm and provide additional shocks if needed. Remember to continue performing CPR until medical help arrives or the victim starts breathing normally. Summary An automated external defibrillator is a portable device used to treat sudden cardiac arrest. Its ability to effectively restore a normal heart rhythm can be the difference between life and death. With their increasing prevalence in public spaces, AEDs are helping to empower individuals to respond confidently and promptly in emergency situations. Remember, learning how to use an AED can be as crucial as knowing CPR, as both techniques work hand in hand to save lives.