CER High-Level Disinfection Processes 2

Question 1

What is the minimum recommended contact time for 2% glutaraldehyde to achieve high-level disinfection at 20°C (68°F)?

Accepted Answer

20 minutes

Answer

2% glutaraldehyde requires at least 20 minutes of contact time at 20°C to achieve high-level disinfection per most manufacturer guidelines.

Question 2

Which of the following best describes the term 'soak time' in high-level disinfection?

Accepted Answer

The duration the endoscope is submerged in the HLD solution

Answer

Soak time refers to the period the endoscope remains fully submerged and in contact with the HLD solution to destroy pathogens.

Question 3

A technician notices that the HLD solution appears cloudy and discolored. What is the correct action?

Accepted Answer

Discard the solution and replace with fresh HLD

Answer

Visibly cloudy or discolored HLD solution should be discarded immediately, as organic contamination can render it ineffective regardless of MRC test results.

Question 4

Which microorganism category is most resistant to high-level disinfectants and requires sterilization rather than HLD?

Accepted Answer

Bacterial endospores

Answer

Bacterial endospores are the most resistant form of microbial life and require sterilization; HLD may not reliably eliminate all spores.

Question 5

What does MRC stand for in the context of HLD chemical testing?

Accepted Answer

Minimum Required Concentration

Answer

MRC stands for Minimum Required Concentration, which is the lowest effective concentration of HLD solution as determined by the manufacturer.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER High-Level Disinfection Processes 2