CER Scope Inspection and Testing 4

Question 1

Why must all removable components such as valves and caps be removed before inspection and leak testing?

Accepted Answer

To allow thorough visual inspection and ensure accurate pressure readings

Answer

Removing valves and caps allows full visual access to ports and channels and ensures the leak test accurately reflects the scope body's integrity rather than masked by sealed components.

Question 2

A duodenoscope elevator mechanism is stiff and does not move freely during functional inspection. This finding suggests:

Accepted Answer

Possible debris accumulation or mechanical damage requiring repair evaluation

Answer

A stiff elevator mechanism may indicate residual soil or mechanical damage; the duodenoscope's elevator channel is a known contamination risk and requires thorough evaluation.

Question 3

Which action confirms that a scope's air/water channel is fully patent after reprocessing?

Accepted Answer

Visual confirmation of water flowing from the distal tip nozzle

Answer

Visually confirming that water flows freely from the distal nozzle when the air/water channel is flushed confirms the channel is patent.

Question 4

When using a pressure manometer during leak testing, the pressure gauge should be read after:

Accepted Answer

Pressurizing to the specified range and stabilizing for 30 seconds, then submerging

Answer

Pressure must be allowed to stabilize before submerging so the baseline is established, then any subsequent drop indicates a leak.

Question 5

An endoscope returned to the reprocessing area has a bend in the insertion tube that will not relax. The most likely cause is:

Accepted Answer

Coiling the scope too tightly beyond the minimum bend radius during use or transport

Answer

Coiling or bending the scope beyond its minimum bend radius can permanently kink internal components, particularly angulation wires and light guide fibers.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Scope Inspection and Testing 4