CER Endoscope Reprocessing Fundamentals 4

Question 1

How should a reprocessed flexible endoscope be stored after drying?

Accepted Answer

Hanging vertically in a ventilated cabinet with caps removed

Answer

Coiled tightly in a sealed plastic bag

Answer

Immersed in a disinfectant solution until next use

Answer

Lying horizontally in a closed drawer

Question 2

What is the recommended maximum storage time for a reprocessed endoscope stored in a drying cabinet before it must be reprocessed?

Accepted Answer

There is no universally agreed maximum — follow facility policy based on evidence

Answer

24 hours

Answer

48 hours

Answer

7 days

Question 3

Which enzyme is most important in enzymatic detergents used for endoscope pre-cleaning?

Accepted Answer

Protease

Answer

Lipase

Answer

Amylase

Answer

Cellulase

Question 4

What does the term 'critical item' mean according to the Spaulding Classification?

Accepted Answer

An item that enters sterile tissue or the vascular system and requires sterilization

Answer

An item that contacts intact skin and requires low-level disinfection

Answer

An item that contacts mucous membranes and requires high-level disinfection

Answer

An item that is used in critical care settings

Question 5

During manual channel brushing, what should be done when the brush exits the distal end of the channel?

Accepted Answer

Rinse the brush in clean water before the return stroke

Answer

Immediately retract the brush back through the channel

Answer

Continue brushing in the same direction only — never retract through the channel

Answer

Inspect the brush for bristle integrity before reinserting

Question 6

What is the primary hazard associated with using glutaraldehyde without adequate ventilation?

Accepted Answer

Respiratory sensitization and occupational asthma

Answer

Fire and explosion risk

Answer

Skin bleaching and chemical burns

Answer

Rapid degradation of the disinfectant solution

Question 7

Which of the following accessories used during endoscopy is considered a single-use item and must NEVER be reprocessed?

Accepted Answer

Biopsy forceps used for tissue sampling

Answer

Water bottles and their connecting tubing

Answer

Endoscope caps and valves

Answer

Light guide cables