What should be done before using an AED on a patient?

Using an AED effectively requires several important steps to ensure the safety and efficiency of the procedure. Making sure the patient’s chest is bare and dry is critical because the AED pads need direct contact with the skin to deliver an electrical shock effectively. Clothing can interfere with the pad's adhesive or electrical conductivity, potentially preventing the shock from being delivered properly.

Additionally, ensuring the chest is dry helps to avoid any potential shock misdirection or skin irritation, which could arise from moisture. Ideally, if the chest is wet from sweat, fluid, or other sources, it should be dried off as thoroughly as possible. This step is a fundamental part of preparing the patient for defibrillation and increases the chances of restoring a normal heart rhythm.