CGRN Infection Prevention and Control 2

Question 1

According to the Spaulding classification, endoscopes that contact intact mucous membranes are categorized as which level of device?

Accepted Answer

Semi-critical

Answer

Critical

Answer

Non-critical

Answer

Sterile

Question 2

What is the minimum contact time required for high-level disinfection of endoscopes using 2% glutaraldehyde at 25°C?

Accepted Answer

20 minutes

Answer

5 minutes

Answer

10 minutes

Answer

45 minutes

Question 3

Which step in endoscope reprocessing is considered the most critical for reducing bioburden?

Accepted Answer

Manual cleaning (brushing and enzymatic detergent)

Answer

High-level disinfection

Answer

Rinsing with sterile water

Answer

Drying with forced air

Question 4

A patient scheduled for endoscopy has a known history of Creutzfeldt-Jakob disease (CJD). What is the recommended approach?

Accepted Answer

Use a disposable endoscope or quarantine the scope after use

Answer

Standard high-level disinfection is sufficient

Answer

Extended soaking in glutaraldehyde for 1 hour

Answer

Autoclave the flexible endoscope at 134°C

Question 5

What is the purpose of performing a leak test on an endoscope before reprocessing?

Accepted Answer

To detect damage to the endoscope's internal channels and outer sheath

Answer

To verify the disinfectant concentration

Answer

To confirm the AER is functioning properly

Answer

To measure residual bioburden

Question 6

Which organism is the most frequently reported pathogen associated with endoscope-related infections due to inadequate reprocessing?

Accepted Answer

Pseudomonas aeruginosa

Answer

Staphylococcus aureus

Answer

Clostridium difficile

Answer

Escherichia coli