Electrode Pad
Electrode pads deliver the AED's shock and detect heart rhythm in a cardiac arrest emergency.
Electrode pads, also known as defibrillation pads or AED pads, are essential components of an Automated External Defibrillator (AED). These sticky pads adhere to the casualty’s chest and serve two crucial roles: they detect the heart's rhythm and deliver an electric shock if needed. Correct placement and contact are critical for the AED to function properly.
Each AED kit includes two electrode pads, which come with clear diagrams showing where to place them. For adults and children over 8 years, one pad is placed on the upper right side of the chest, just below the collarbone, and the other on the lower left side of the chest, below the armpit. This placement allows the electric shock to pass through the heart effectively.
For children aged 1–8, paediatric electrode pads should be used if available. These are smaller and designed to reduce the strength of the shock. If paediatric pads are not available, adult pads may be used, ensuring they do not touch each other—one can be placed on the front of the chest and the other on the back. Electrode pads are not typically recommended for infants under 1 year, unless under professional guidance.
Before applying the pads, make sure the chest is dry and free from excessive hair or moisture. Most AED kits include wipes and a razor for this purpose. Once pads are in place, the AED will automatically assess the heart rhythm and advise whether a shock is required.
Understanding how to use electrode pads properly ensures that the AED works as intended and gives the person in cardiac arrest the best chance of survival.
Expose the casualty’s bare chest.
Peel the backing off the electrode pads.
Place one pad on the upper right chest, one on the lower left side of the ribs.
Ensure pads are firmly attached to dry skin.
Follow the AED prompts and do not touch the person during analysis or shock delivery.
Electrode pads are adhesive pads used with a defibrillator (AED) to deliver an electric shock and monitor the heart’s rhythm. They must be correctly placed on the chest for the AED to work effectively.