Certified Gastroenterology RN Infection Control and Safety 2

Question 1

According to Spaulding classification, how are flexible GI endoscopes categorized because they contact intact mucous membranes?

Accepted Answer

Semi-critical items requiring high-level disinfection

Answer

Endoscopes touch mucous membranes but not sterile tissue, making them semi-critical items that require at least high-level disinfection.

Question 2

What is the FIRST step that must occur immediately after an endoscope is removed from the patient?

Accepted Answer

Bedside precleaning to prevent biofilm and drying of secretions

Answer

Bedside precleaning wipes the insertion tube and flushes channels to remove debris before it dries and forms biofilm.

Question 3

Why is a leak test performed during endoscope reprocessing?

Accepted Answer

To detect damage to the scope's exterior or internal channels before immersion

Answer

Leak testing identifies breaches in the scope so a damaged instrument is not immersed and further contaminated or damaged.

Question 4

Which agent is commonly used as a high-level disinfectant for flexible endoscopes?

Accepted Answer

Ortho-phthalaldehyde (OPA)

Answer

Ortho-phthalaldehyde is a widely used high-level disinfectant effective for GI endoscopes.

Question 5

Manual cleaning of an endoscope must be completed within what timeframe to be most effective?

Accepted Answer

Within the manufacturer-specified time, generally as soon as possible after use

Answer

Prompt cleaning per the manufacturer's instructions prevents debris from drying and biofilm from forming.

Certified Gastroenterology RN Practice Test