Certified Endoscope Reprocessor (CER) Practice Exam

A decrease in pressure during leak tests signifies that there is a compromised seal or a breach in the integrity of the endoscope or its components. This usually represents a leak where air escapes from the system, leading to an inability to maintain the necessary pressure levels. In the context of endoscope reprocessing, maintaining proper pressure is crucial for ensuring that the endoscope is intact and free of defects which could compromise the sterilization process. A leak can lead to contamination and risks to patient safety, making it imperative to address any identified leaks before further use of the equipment.

The other choices depict scenarios that are not applicable when a pressure drop is observed during leak testing. For example, a normal function of the system would typically be indicated by stable pressure, while excessive pressure is more likely to result in functionality issues unrelated to leaks. Calibration, while important, typically relates to the accuracy of measurement tools rather than the immediate response observed in pressure during leak testing.