Why is it important to prep the skin before electrode application?

Prepping the skin before electrode application is crucial primarily because it serves to enhance electrode performance. This preparation typically involves cleaning the skin to remove oils, dirt, and dead skin cells, which helps ensure better contact between the electrode and the skin surface. When the skin is properly prepared, the impedance at the electrode-skin interface is reduced, resulting in improved signal quality and more reliable monitoring during neurophysiological procedures.

Good electrode performance is essential in intraoperative monitoring as it allows for accurate assessment of neural function, aiding in surgical decision-making and patient safety. While reducing skin irritation, avoiding allergic reactions, and facilitating electrode placement are also important considerations, the primary focus in the context of this question revolves around maximizing the functionality of the electrodes by ensuring optimal contact with the skin.