CER Scope Inspection and Testing 3

Question 1

Which standard establishes the minimum acceptable leak test pressure range for flexible endoscopes?

Accepted Answer

Manufacturer's Instructions for Use (IFU)

Answer

The manufacturer's IFU specifies the exact pressure range for leak testing each specific endoscope model, and IFU requirements always take precedence.

Question 2

During inspection, the endoscope's air/water nozzle is found to be missing. What should the reprocessor do?

Accepted Answer

Remove the scope from service; a missing nozzle prevents proper lens washing

Answer

The air/water nozzle is required for adequate lens washing during procedures; a missing nozzle renders the scope non-functional and it must be removed from service.

Question 3

What does a 'negative' result on a leak test indicate?

Accepted Answer

No pressure loss was detected — the scope is intact

Answer

A negative leak test result means no air loss was detected, confirming the scope's outer envelope is intact and safe to proceed with reprocessing.

Question 4

A colonoscope's bending section shows cracking in the rubber exterior but no bubbling during the leak test. The correct action is to:

Accepted Answer

Remove from service — surface cracks can harbor pathogens and progress

Answer

Cracks in the bending rubber can harbor biofilm and microorganisms and will worsen over time, requiring removal from service even if no active leak is detected.

Question 5

The ocular eyepiece of a fiberoptic scope appears hazy and scratched. What is the most significant clinical implication?

Accepted Answer

Impaired visualization potentially compromising the procedure

Answer

A hazy or scratched ocular eyepiece degrades the endoscopist's image quality, which can impair visualization and compromise procedural safety.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Scope Inspection and Testing 3