CER Scope Inspection and Testing Questions and Answers 4 ā Questions and Answers
Question 1: Which standard or guideline provides primary direction for endoscope inspection and testing practices in the United States?
- OSHA Bloodborne Pathogen Standard 29 CFR 1910.1030
- ANSI/AAMI ST91: Flexible and Semi-Rigid Endoscope Processing in Health Care Facilities (Correct answer)
- FDA 21 CFR Part 820 Quality System Regulation
- CDC Healthcare Infection Control Practices Advisory Committee (HICPAC) Tier 1 guidelines
Correct answer: ANSI/AAMI ST91: Flexible and Semi-Rigid Endoscope Processing in Health Care Facilities
ANSI/AAMI ST91 is the primary US standard specifically addressing flexible and semi-rigid endoscope processing, including inspection and testing requirements.
Question 2: A gastroscope is returned from the endoscopy suite with visible debris on the exterior of the distal tip. Prior to beginning the inspection process, what is the FIRST step a reprocessing technician should take?
- Perform a leak test
- Don appropriate personal protective equipment (PPE) (Correct answer)
- Flush all channels with water
- Apply enzymatic detergent to the distal tip
Correct answer: Don appropriate personal protective equipment (PPE)
Donning appropriate PPE is always the first step when handling a contaminated endoscope to protect the technician from exposure to blood, body fluids, and pathogens.
Question 3: What is the significance of inspecting the light guide bundle of an endoscope during visual inspection?
- To verify the bundle's diameter matches manufacturer specifications
- To identify broken fibers that would reduce illumination quality during procedures (Correct answer)
- To ensure the bundle is compatible with the reprocessor's connector
- To measure total photon output in lumens
Correct answer: To identify broken fibers that would reduce illumination quality during procedures
Broken fibers in the light guide bundle reduce illumination, which can impair visualization during procedures and indicate scope damage requiring repair.
Question 4: When conducting a pressure (leak) test using a manual leak tester, what is the correct sequence of steps?
- Submerge scope, attach tester, pressurize, then observe for bubbles
- Attach tester, pressurize scope, submerge in water, then observe for bubbles (Correct answer)
- Submerge scope, observe for bubbles, then attach tester if no bubbles seen
- Pressurize scope, detach tester, submerge in water, then observe
Correct answer: Attach tester, pressurize scope, submerge in water, then observe for bubbles
The correct sequence is to attach and pressurize the scope before submerging it, so any breach will immediately produce observable bubbles upon submersion.
Question 5: An endoscope inspection reveals a small crack in the rubber angulation hood at the distal tip. What action should be taken?
- Apply medical-grade adhesive and allow to cure before reprocessing
- Remove the scope from service and send to the manufacturer or repair facility (Correct answer)
- Continue reprocessing, as the angulation hood is not a fluid pathway
- Cover the crack with sterile tape and document the finding
Correct answer: Remove the scope from service and send to the manufacturer or repair facility
A cracked angulation hood compromises the scope's integrity and can harbor microorganisms; the scope must be removed from service for professional repair.
Question 6: Which of the following findings during channel patency testing would indicate the working channel is NOT patent?
- Water flows freely through the channel and exits the distal end
- Resistance is felt when advancing the cleaning brush and water does not flow freely (Correct answer)
- A small amount of air escapes when flushing with water
- The channel brush exits slightly bent at the distal tip
Correct answer: Resistance is felt when advancing the cleaning brush and water does not flow freely
Resistance during brush passage combined with impeded water flow indicates a blockage or collapse within the working channel, preventing adequate cleaning and compromising patency.
Question 7: How should a reprocessing technician document scope inspection findings to support traceability?
- Record only defects that required the scope to be taken out of service
- Enter all findingsānormal and abnormalāin the scope tracking log with date, time, technician ID, and scope identifier (Correct answer)
- Verbally inform the charge nurse of any findings and document only if repair was needed
- Record findings in the manufacturer's service manual kept with the scope
Correct answer: Enter all findingsānormal and abnormalāin the scope tracking log with date, time, technician ID, and scope identifier
Comprehensive documentation of all inspection findings with full identifiers supports traceability, quality assurance, and patient safety investigations.
CER Scope Inspection and Testing Questions and Answers 4
Which standard or guideline provides primary direction for endoscope inspection and testing practices in the United States?