CER Work Area Design & Workflow Questions and Answers 3

Question 1

Which AAMI standard provides primary guidance on the design and layout of endoscope reprocessing areas?

Accepted Answer

AAMI ST91

Answer

AAMI ST91 is the primary standard addressing flexible endoscope reprocessing, including facility design requirements.

Question 2

What is the recommended minimum number of sinks in the decontamination area of an endoscope reprocessing room?

Accepted Answer

Two sinks — one for washing, one for rinsing

Answer

At minimum, two separate sinks should be available — one dedicated to washing and one to rinsing — to prevent cross-contamination.

Question 3

Why is a hands-free (foot-pedal or sensor-operated) faucet preferred in the decontamination sink area?

Accepted Answer

It prevents recontamination of cleaned hands during rinsing

Answer

Hands-free faucets prevent technicians from recontaminating their hands or the scope by touching a potentially soiled handle after cleaning.

Question 4

The 'clean-to-dirty' workflow principle in endoscope reprocessing means that:

Accepted Answer

Personnel and scopes should move from decontamination toward clean/storage areas, never in reverse

Answer

Unidirectional clean-to-dirty workflow prevents contaminated items from re-entering clean zones and causing cross-contamination.

Question 5

What is the purpose of a pass-through window between the decontamination area and the clean processing area?

Accepted Answer

It enables scopes to move from dirty to clean sides without personnel crossing zones

Answer

Pass-through windows allow scopes to be transferred from decontamination to the clean side without staff or scopes crossing contamination boundaries.

CER - Certified Endoscope Reprocessor Practice Test