Anesthesia Technologist Practice Exam

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What function does a line isolation monitor serve?

To alert when there is a power outage
To continuously monitor the integrity of the isolated power system
To measure electrical resistance in wiring
To ensure surgical instruments are sterile

The correct answer is: To continuously monitor the integrity of the isolated power system

A line isolation monitor serves the crucial function of continuously monitoring the integrity of the isolated power system in operating rooms and healthcare settings. This device is essential in environments where sensitive electrical equipment is used, as it detects faults in the system that may compromise safety. By ensuring that the system remains properly isolated, the line isolation monitor helps prevent electric shock hazards and facilitates the safe operation of electrical surgical devices. It functions by measuring the total leakage current and alerts personnel if the current exceeds predetermined safe levels. This proactive monitoring is vital in maintaining patient safety and ensuring favorable conditions for anesthesia delivery and other surgical procedures. While other choices relate to different aspects of medical equipment and safety, they do not capture the specific role of a line isolation monitor in sustaining an isolated power system's integrity.