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

10 minutes

Answer

45 minutes

Answer

60 minutes

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

The time required to rinse the endoscope after disinfection

Answer

The time needed to dry the endoscope after processing

Answer

The period between last patient use and start of reprocessing

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

Continue use if the MRC test passes

Answer

Add more chemical concentrate to restore potency

Answer

Filter the solution to remove contaminants

Question 4

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

Accepted Answer

Bacterial endospores

Answer

Vegetative bacteria

Answer

Lipid viruses

Answer

Fungi

Question 5

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

Accepted Answer

Minimum Required Concentration

Answer

Maximum Reuse Cycle

Answer

Microorganism Resistance Check

Answer

Manual Reprocessing Compliance

Question 6

How often must HLD solution concentration be tested when used in a manual soaking basin?

Accepted Answer

Before each use or per manufacturer instructions

Answer

Once per day at the start of the shift

Answer

Weekly, using a certified laboratory test

Answer

Only when the solution appears discolored

Question 7

Which of the following is NOT a factor that can reduce the efficacy of a high-level disinfectant?

Accepted Answer

Using a covered container during soak

Answer

Organic soil remaining on the scope

Answer

Dilution from wet scopes

Answer

Elevated temperature beyond recommended range