CER - Certified Endoscope Reprocessor Scope Inspection and Testing Questions and Answers

Question 1

A reprocessing technician is performing a dry leak test on a flexible endoscope after pre-cleaning.
The pressure gauge indicates an immediate and rapid loss of pressure.
What is the MOST appropriate initial action?

Accepted Answer

Check that all valves, caps, and connections to the leak tester are secure and properly seated.

Answer

Immediately submerge the endoscope in water to find the source of the leak.

Answer

Discontinue the test and send the endoscope for repair, as it has a major internal leak.

Answer

Proceed with manual cleaning, but make a note of the leak test failure in the reprocessing log.

Question 2

During the visual inspection phase, what is the primary purpose of using a lighted magnifying glass to examine the endoscope?

Accepted Answer

To identify subtle damage such as small dents, scratches, corrosion, or buckling on the insertion tube.

Answer

To verify the serial number matches the reprocessing documentation.

Answer

To ensure the angulation lock mechanism is functioning.

Answer

To check for moisture inside the light guide connector.

Question 3

Which of the following is a critical functional test performed after high-level disinfection and before storage to ensure the endoscope is ready for patient use?

Accepted Answer

Confirming the air/water channels are clear by observing air bubbles and water flow from the distal tip.

Answer

Verifying the clarity of the image by looking through the eyepiece at a detailed chart.

Answer

Testing the minimum effective concentration (MEC) of the high-level disinfectant used.

Answer

Measuring the length of the universal cord to check for stretching.

Question 4

While performing a wet leak test, a technician observes a small, consistent stream of bubbles emerging from the base of the control body. What is the immediate and most critical action to prevent further damage?

Accepted Answer

Leave the endoscope submerged and pressurized while notifying a supervisor for repair.

Answer

Quickly remove the endoscope from the water, disconnect the leak tester, and dry the exterior.

Answer

Increase the pressure to see if the leak gets worse.

Answer

Mark the location of the bubbles with a waterproof tag and proceed to the automated endoscope reprocessor (AER).

Question 5

The failure to perform a leak test before immersing a flexible endoscope in enzymatic detergent poses the MOST significant risk for which of the following outcomes?

Accepted Answer

Massive fluid invasion, leading to costly internal damage and potential for cross-contamination.

Answer

Inactivation of the enzymatic detergent.

Answer

Causing the angulation wires to rust.

Answer

Scratching the distal end lens.

Question 6

When inspecting the distal end of a flexible endoscope, which of the following findings would necessitate removing the scope from service for repair?

Accepted Answer

A loose or cracked lens cover over the light guide bundles.

Answer

A clear, unobstructed view through the objective lens.

Answer

Water exiting the nozzle smoothly when the air/water valve is depressed.

Answer

The biopsy channel opening is free of debris.

A reprocessing technician is performing a dry leak test on a flexible endoscope after pre-cleaning.The pressure gauge indicates an immediate and rapid loss of pressure.What is the MOST appropriate initial action?

A reprocessing technician is performing a dry leak test on a flexible endoscope after pre-cleaning.
The pressure gauge indicates an immediate and rapid loss of pressure.
What is the MOST appropriate initial action?