The Adult QUIK-COMBO REDI-PAK electrodes for the LIFEPAK 500 and LIFEPAK 1000 AED by Physio Control are important pieces of an automated external defibrillator (AED) unit. Electrodes are needed to properly deliver a shock to a sudden cardiac arrest (SCA) victims heart to get it restarted or to get it back to beating normally. Without electrodes, the AED is useless. The advantage of using the QUIK-COMBO REDI-PAK is that electrode changes between phases of patient care are eliminated, plus the preconnect system allows the electrodes to be connected prior to their use and without having to break the package seal. This saves time when the AED arrives at the victims side because the electrodes can be immediately placed on the victims chest without having to connect them first. These electrodes have also been proven to reduce the risk of skin damage which sometimes happens with defibrillation. The QUIK-COMBO REDI-PACK electrodes have been designed so the electrical current is evenly distributed across the entire surface area of the electrode pad, not only at the edges of the pads. Having extra Adult QUIK-COMBO REDI-PAK electrodes for your LIFEPAK AED is vitally important because electrodes, just like batteries, can expire. Make sure your AED program is fully equipped and ready by having extra electrode pads on hand.