A medical-surgical vacuum receiver shall be made serviceable by which method?

The method of making a medical-surgical vacuum receiver serviceable by ensuring the continuation of service is critical for maintaining the operational integrity of the system. This approach emphasizes the importance of being able to continue using the medical gas system while conducting maintenance or repairs, thus preventing interruptions in patient care.

Ensuring continuation of service means that the system can be necessary for the efficiency and safety of medical procedures. This often involves tools and techniques such as a bypass system or redundant configurations that allow for service tasks to be performed without shutting down the entire system. The focus on maintaining care and service continuity underscores the essential nature of medical gases in a clinical setting, where any downtime can significantly affect patient outcomes.

In contrast, other methods presented do not align with this core principle. For instance, shutting down the system does not uphold service continuity, and merely valving the end of the main line or installing a three-valve bypass does not guarantee that the entire service operation remains functional while maintenance tasks are underway.