CER Scope Inspection and Testing Questions and Answers 2

Question 1

What is the correct procedure for performing a leak test on a flexible endoscope?

Accepted Answer

Attach the leak testing device and pressurize the scope before immersion, then submerge and look for air bubbles

Answer

The scope must be pressurized before immersion; air bubbles visible after immersion indicate a leak in the outer sheath.

Question 2

What does a positive leak test result look like when the endoscope is submerged?

Accepted Answer

Continuous stream of air bubbles emerging from the same location on the endoscope

Answer

A leak is indicated by a continuous stream of bubbles at a fixed location, showing air escaping through a breach in the endoscope's outer sheath.

Question 3

During visual inspection of a cleaned endoscope, which finding requires immediate removal from service?

Accepted Answer

Visible crack in the bending rubber or detachment of the distal tip cap

Answer

Visible cracks in the bending rubber or detachment of the distal tip cap represent structural failures that compromise both scope integrity and reprocessing effectiveness.

Question 4

What is the purpose of angulating the endoscope in all four directions during the leak test?

Accepted Answer

To expose the bending section in different positions, revealing leaks that may only manifest under stress

Answer

Different angulation positions stretch different parts of the bending section, revealing small leaks that may not be visible with the scope in the neutral position.

Question 5

What is an endoscope's 'channel patency test' and why is it performed?

Accepted Answer

A test confirming that channels are open and not blocked, typically by passing air through each channel and confirming flow

Answer

The channel patency test confirms that all channels remain open and unobstructed, ensuring that fluids and cleaning tools can pass through during reprocessing.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Scope Inspection and Testing Questions and Answers 2