CER Endoscope Sterilization Methods 5

Question 1

A flexible endoscope labeled 'NOT compatible with EO sterilization' by its manufacturer should be processed using:

Accepted Answer

Only the methods specifically validated and approved by the endoscope manufacturer

Answer

Reprocessors must follow the endoscope manufacturer's validated and approved reprocessing methods to ensure safety, efficacy, and device integrity.

Question 2

Which statement about ozone sterilization is accurate?

Accepted Answer

Ozone is generated on-site from oxygen and water, eliminating the need for chemical storage

Answer

Ozone sterilization systems generate ozone on-site from oxygen, eliminating the need to store hazardous chemicals, and it breaks down to oxygen and water after the cycle.

Question 3

Before loading an endoscope into an automated endoscope reprocessor (AER) set to run a sterilization cycle, the technician MUST:

Accepted Answer

Perform pre-cleaning, leak testing, and manual cleaning per IFU

Answer

Pre-cleaning, leak testing, and manual cleaning must always precede any automated reprocessing cycle to remove gross soil and verify device integrity.

Question 4

The purpose of a 'parametric release' in sterilization is to:

Accepted Answer

Release a sterilized load based on verified physical and chemical process parameters without waiting for BI incubation

Answer

Parametric release relies on verified sterilization process parameters (time, temperature, pressure, concentration) as evidence of sterility rather than awaiting BI culture results.

Question 5

Which of the following correctly describes the mechanism of action of hydrogen peroxide plasma sterilization?

Accepted Answer

Hydrogen peroxide vapor is energized into plasma, generating free radicals that destroy microbial cell walls and DNA

Answer

In plasma sterilization, hydrogen peroxide vapor is exposed to radiofrequency energy, creating plasma that releases free radicals (OH• and HO₂•) with potent antimicrobial activity.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Endoscope Sterilization Methods 5