Which electrode application material is not permitted for use in the operating room?

Collodion is an outdated electrode application material that is not permitted for use in the operating room due to safety and practicality concerns. It is a highly flammable substance that poses a risk of fire in the sterile environment of the operating room. Moreover, collodion also tends to require longer drying times, which can be inconvenient during surgical procedures where quick application and removal of electrodes is necessary.

In contrast, ethanol is commonly used for skin preparation and disinfection, while adhesive gel and silicone are widely accepted materials for secure electrode placement, contributing to effective monitoring during procedures. Their use aligns with safety protocols and modern practices in intraoperative neurophysiological monitoring, making them suitable alternatives.