Voice, lights, and screen instructions guide an operator in using the device. There are many different brands of AEDs, but the same basic steps for operation apply to all of them.
• Turn on the AED. This starts voice instructions and ready the device for use. Opening the lid will turn on the power with some AEDs. With others, a power button is pressed.
• Adhere the defibrillation pads to the person’s bare chest.
Pads are placed in specific locations to direct the electrical shock through the heart. Most pads are pre-connected to the device, but some AEDs require you to plug in connector.
• Allow the AED to analyze the heart rhythm. An AED automatically starts analyzing once the pads are in place.
If defibrillation is required, the AED will charge to get ready for shock delivery.
• Safely deliver a shock if directed to by the AED. Keeping Others clear, a button is pressed on most AEDs to deliver a shock.
Immediately after a shock is delivered, CPR is resumed starting with chest compressions. Voice instructions and additional analysis by the AED will guide providers through further care.
Basic AED Operation
If someone is unresponsive and not breathing, perform CPR until an AED is ready to analyze the heart rhythm. If possible, continue compressions until the pads are in place.
Defibrillation pads must be applied to a bare chest. If needed,quickly tear or use scissors to remove clothing, including under-garments.
If the chest is wet or sweaty, wipe it dry with the removed shirt, a dressing, or a towel.
The pads have pictures on them to assist in proper placement.Carefully look at the pictures to ensure the pads are accurately placed.
Pads use an adhesive to stick to the chest. Peel the pads from the backing sheet one at a time and place them exactly as in-dicated in the pictures.
Place one pad below the right collarbone, above the nipple, and beside the breastbone.
Place the other pad lower on the left side, over the ribs, and a few inches below the armpit. Make sure pads adhere well by pressing them flat. AEDs automatically start analyzing once the pads are in place.
Movement can interrupt the analysis. Be certain that no one is touching the person. If defibrillation is required, an AED will charge to deliver a shock. A voice instructions will indicate when the AED is ready.
To prevent accidental shock, keep others clear.Give a verbal warning and look to make sure no one, including you, is in contact with the person before delivering the shock.
Immediately after delivering the shock,resume CPR, starting with chest compressions. Some AEDs provide CPR voice instructions. If the person responds, stop CPR and place him in a recovery position.
Leave the AED on and attached in case cardiac arrest returns.
When a shock is not indicated by the AED, simply resume CPR, starting with chest compressions and continue to follow any voice instructions.
Don’t stop until the person shows signs of life, another provider or EMS personnel take over, or you are too exhausted to continue.
AEDs and Children
Cardiac arrests involving children are primarily caused by the initial loss of the airway or breathing. High-quality CPR with effective rescue breaths may be the only treatment required for successful resuscitation.
However, conditions can occur for which defibrillation of a child or infant is warranted. After CPR is started and EMS has been notified,provide at least two minutes of CPR and then attach an AED if one is available.
Most AEDs have specially designed pads or mechanisms available that reduce the defibrillation energy to a level more appropriate for a smaller body size.
If an AED specifically-equipped for use on a child or infant is not available, an AED configured for an adult can be used instead, placing the pads on the front and back of the chest.
AEDs are designed to detect problems during use and guide you through correctiveactions. If a troubleshooting message occurs, stay calm and follow the AEDs voice instructions.
• If the AED indicates a problem with the pads, the pads are not completely adhered to the skin or there is a poor connection to the AED. Press pads firmly, especially in the center, to make sure they are adhering well.
• Make sure the pads cable connector is firmly connected to the AED.
• If the chest is wet, remove pads and wipe the chest dry. If pads do not stick due to chest hair, pull the pads off and quickly shave the hair. Apply a new set of pads.
• Another troubleshooting message may indicate that analysis has been interrupted due to movement. Stop all sources of movement, such as chest compressions for rescue breaths.
• If a message indicates the need to replace a battery, there may only be enough energy for a limited number of shocks. If the AED fails to operate,the depleted battery should be removed and replaced with a new one.
There are some other things to consider regarding the use of an AED.
• A person should be removed from standing water before using an AED. It's Okay to use an AED when a person is lying on a wet surface, such as in the rain or near a swimming pool. An AED should never be immersed in water or have fluids spilled on it.
• AEDs can also be used safely on metal surfaces, such as gratings or stairwells. Make sure pads do not directly touch any metal surface.
• Someone may have a surgically implanted device in the chest, such as a pacemaker or an automated internal defibrillator. A noticeable lump and surgical scar will be visible. If the implanted device is in the way of correct pad placement, place the pads so the edges are at least one inch away from the device.
• Defibrillating over medication patches could reduce the effectiveness of the shock. If a medication patch is interfering with placement, use a gloved hand to peel off the patch and wipe away any remaining residue before placing pads.
More and more employers are implementing AED pro -grams in the workplace to improve survival from sudden cardiac arrest. In the community, public access AEDS programs are installing AEDs in public areas to be used by bystanders in an emergency. CPR training should include training in the use of an AED,even if one is not currently available in your workplace. Automatic Shock Delivery
Some AEDs deliver a shock automatically after charging.An accidental shock can be prevented by making sure noone is in contact with the person being defibrillated.