CER Endoscope Sterilization Methods 3

Question 1

Which organization sets sterilization standards for endoscope reprocessing in the United States?

Accepted Answer

AAMI, AORN, and SGNA

Answer

Multiple professional organizations including AAMI, AORN, and SGNA publish guidelines and standards relevant to endoscope sterilization and reprocessing.

Question 2

EO sterilization is most appropriate for endoscopes that are:

Accepted Answer

Heat and moisture sensitive and have long lumens with compatible materials

Answer

EO is effective for heat- and moisture-sensitive devices with complex lumens, as the gas penetrates packaging and reaches all surfaces when used correctly.

Question 3

The D-value in sterilization science refers to:

Accepted Answer

The time required to reduce a microbial population by 90%

Answer

The D-value (decimal reduction time) is the time required to reduce a microbial population by one log (90%) under defined conditions.

Question 4

A biological indicator (BI) used to monitor EO sterilization contains spores of which organism?

Accepted Answer

Bacillus atrophaeus

Answer

Bacillus atrophaeus (formerly B. subtilis var. niger) spores are used as the biological indicator for EO sterilization monitoring.

Question 5

Which sterilization method produces the fewest environmental and occupational safety concerns?

Accepted Answer

Hydrogen peroxide plasma (STERRAD)

Answer

Hydrogen peroxide plasma sterilization (STERRAD) produces only water and oxygen as by-products, presenting minimal environmental and occupational hazards.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Endoscope Sterilization Methods 3