CER Endoscope Reprocessing Fundamentals 4

Question 1

How should a reprocessed flexible endoscope be stored after drying?

Accepted Answer

Hanging vertically in a ventilated cabinet with caps removed

Answer

Endoscopes should be hung vertically in a well-ventilated cabinet with all caps and valves removed to allow complete drying and prevent microbial growth.

Question 2

What is the recommended maximum storage time for a reprocessed endoscope stored in a drying cabinet before it must be reprocessed?

Accepted Answer

There is no universally agreed maximum — follow facility policy based on evidence

Answer

No universal consensus exists on maximum hang time; facilities should follow evidence-based guidelines and manufacturer instructions, with many recommending reprocessing after 5–7 days of storage.

Question 3

Which enzyme is most important in enzymatic detergents used for endoscope pre-cleaning?

Accepted Answer

Protease

Answer

Protease is the primary enzyme in enzymatic detergents used for endoscope cleaning because it breaks down protein-based organic material, which constitutes the bulk of clinical bioburden.

Question 4

What does the term 'critical item' mean according to the Spaulding Classification?

Accepted Answer

An item that enters sterile tissue or the vascular system and requires sterilization

Answer

Critical items enter sterile body cavities or the vascular system and present the highest infection risk, requiring sterilization before use.

Question 5

During manual channel brushing, what should be done when the brush exits the distal end of the channel?

Accepted Answer

Rinse the brush in clean water before the return stroke

Answer

The brush should be rinsed in clean enzymatic solution or water after each pass to remove debris before reinsertion, preventing redistribution of contamination.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Endoscope Reprocessing Fundamentals 4