Which of the following is NOT a potential complication of Electro-Surgical Units (ESUs)?

Muscle spasms are not typically considered a complication associated with Electro-Surgical Units (ESUs). The primary function of an ESU is to cut and coagulate tissue using high-frequency electrical currents, which can cause targeted tissue destruction without leading to muscle spasms.

In contrast, potential complications that can arise from the use of ESUs include patient injuries due to thermal effects or inadvertent burns, fires resulting from igniting stray sparks in the presence of flammable substances, and electromagnetic interference that can disrupt the functioning of other nearby electronic medical equipment. All these factors highlight the need for careful monitoring and safety protocols when using ESUs in a clinical setting.