CGRN Scope and Equipment Reprocessing 2

Question 1

What endoscope channel is most frequently associated with reprocessing failures and infection transmission?

Accepted Answer

Elevator channel of duodenoscopes

Answer

The elevator channel of duodenoscopes has been most frequently associated with reprocessing failures due to its complex design.

Question 2

What is the correct sequence of steps in manual endoscope reprocessing?

Accepted Answer

Pre-clean, leak test, manual clean, rinse, HLD, rinse, dry

Answer

The correct sequence ensures each step builds on the previous one to maximize reprocessing efficacy.

Question 3

A biopsy channel brush emerges with frayed bristles. What action should be taken?

Accepted Answer

Discard immediately and inspect the scope channel for damage

Answer

A damaged brush must be discarded and the scope channel inspected for damage that may have caused the fraying.

Question 4

What is the purpose of the alcohol flush step in endoscope reprocessing?

Accepted Answer

Facilitate drying by displacing residual water in channels

Answer

The 70% isopropyl alcohol flush displaces residual water and facilitates rapid drying.

Question 5

How often should AERs be validated for proper function?

Accepted Answer

At installation, after maintenance/repair, and at regular intervals per manufacturer recommendations

Answer

AERs require validation at multiple points in their lifecycle, not just on a single schedule.

CGRN - Certified Gastroenterology Registered Nurse Practice Test