CER High-Level Disinfection Processes 5

Question 1

When using an automated endoscope reprocessor (AER), which action is the technician's responsibility after the cycle ends?

Accepted Answer

Verify cycle completion, document results, and dry the scope per protocol

Answer

After AER cycle completion, the technician must verify the cycle printout, document the results, and perform appropriate drying before storage or use.

Question 2

Which scenario represents a break in the HLD process that requires the scope to be reprocessed from the beginning?

Accepted Answer

The scope was fully immersed but the channel ports were not connected to the HLD flow

Answer

If internal channels are not perfused with HLD solution, microorganisms inside those channels are not exposed to the disinfectant, invalidating the disinfection process.

Question 3

What is the significance of the 'reuse life' versus 'shelf life' of an HLD solution?

Accepted Answer

Shelf life is before opening; reuse life is how long the opened solution remains effective

Answer

Shelf life refers to the unopened product's expiration date, while reuse life is the period after activation that the solution remains above MRC during repeated use.

Question 4

A CER technician is asked to reprocess a bronchoscope used in a suspected Clostridioides difficile (C. diff) patient. What should the technician know about HLD and C. diff?

Accepted Answer

C. diff spores resist HLD; sterilization or sporicidal agents are required for critical items

Answer

C. diff spores are resistant to standard HLD; while the vegetative cells are killed, spores survive, making sporicidal treatment or sterilization preferable for critical instruments.

Question 5

Which of the following practices is required to prevent aerosolization of HLD chemicals during manual reprocessing?

Accepted Answer

Keeping the HLD basin covered when the scope is soaking

Answer

Keeping the basin covered during the soak reduces vapor release and chemical exposure to staff, and is a standard occupational safety requirement.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER High-Level Disinfection Processes 5