What is the primary function of an electrosurgical pen during surgery?

The primary function of an electrosurgical pen during surgery is to cut, coagulate, or vaporize tissue. This tool is crucial in surgical settings because it utilizes high-frequency electrical currents to achieve these results effectively and efficiently.

The cutting function occurs when the electrosurgical pen generates a focused electrical arc that dissects tissue, while the coagulation function helps in minimizing blood loss by sealing blood vessels during the surgical procedure. This dual capability is particularly valuable as it allows for precise surgical techniques that can reduce operative time and improve patient outcomes. Additionally, the vaporization of tissue can be useful in creating precise incisions or in the removal of diseased tissue.

The other options do not accurately represent the functionality of an electrosurgical pen, as it is specifically designed for tissue management rather than sound amplification, illumination, or securing drapes and covers.