Scope Inspection and Testing Questions and Answers Flashcards

Which of the following best describes 'channel integrity testing' as part of endoscope inspection?

Answer: Verifying that internal channels are unobstructed, undamaged, and able to be effectively cleaned

Channel integrity testing ensures that all internal channels are free of obstructions, structurally intact, and amenable to effective cleaning and disinfection.

A reprocessing technician notices the outer sheath of a duodenoscope has a small raised bump along the insertion tube. What does this finding most likely indicate?

Answer: A kink or internal separation that may affect scope performance and integrity

A raised bump or bulge on the insertion tube sheath often signals internal damage such as a kink, broken wire, or sheath separation that can compromise scope function and reprocessing efficacy.

After reprocessing, a technician performs a final visual inspection and finds water droplets inside the objective lens of a colonoscope. What does this indicate?

Answer: Fluid ingress through a breach in the distal optics, indicating scope damage

Moisture inside the objective lens indicates that fluid has breached the optical seal, which is a sign of scope damage requiring removal from service and repair.

What is the recommended action when an endoscope's elevator mechanism (found on duodenoscopes) is stiff or difficult to operate during functional testing?

Answer: Remove the scope from service for inspection and potential repair

A stiff elevator mechanism may indicate damage, debris accumulation, or mechanical failure that impairs the device's function and requires professional evaluation.

During pre-procedure inspection, a clinician reports that the image on the video processor appears blurry despite the scope passing all reprocessing checks. Which inspection step is most relevant to this finding?

Answer: Distal lens and optical system visual inspection

Image blurriness is most likely related to a soiled, damaged, or moisture-affected distal lens or optical system, making optical inspection the most relevant step.

Which of the following is the MOST important reason to inspect the biopsy valve and port caps of an endoscope during post-procedure inspection?

Answer: To detect cracks, tears, or missing components that can harbor biofilm and impair high-level disinfection

Damaged or missing valve components and port caps can harbor biofilm in hard-to-reach areas, undermining the effectiveness of high-level disinfection.

A CER professional receives a scope back from repair and must verify it is ready to return to service. Which of the following should be performed BEFORE the scope re-enters the reprocessing workflow?

Answer: A complete inspection including leak test, functional test, and visual examination per facility protocol

Any scope returning from repair must undergo a full inspection—leak test, functional testing, and visual examination—before being reintroduced into the reprocessing and clinical workflow.