AST Surgical Technologist Practice Exam

Which surgical technique focuses on the use of high-frequency electrical currents?

1. Microsurgery

2. Cauterization

3. Laser surgery

4. Ultrasonic surgery

The correct answer is: Cauterization

Cauterization is a surgical technique that utilizes high-frequency electrical currents to achieve hemostasis, destroy tissue, or create a thermal wound closure. This technique is particularly effective in managing bleeding by coagulating blood vessels and minimizing blood loss during surgical procedures. By employing electrical energy, cauterization can precisely target and treat specific areas, resulting in reduced damage to surrounding tissues. Microsurgery, while highly specialized, primarily involves the use of optical magnification and fine instruments for procedures on small structures, such as nerves and blood vessels, but it does not center on the use of electrical currents. Laser surgery employs focused light energy to cut or coagulate tissue, differing in mechanism from electrical current use. Ultrasonic surgery uses sound waves to disrupt and cut tissue, rather than electrical energy, which again does not fall under the category of high-frequency electrical currents. Understanding the differences in these techniques is essential for recognizing the specific applications and mechanisms behind cauterization and how it is utilized in surgical practice.