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Quizzes > Health & Medicine > Human Anatomy & Medicine

Test Your IAHCSMM Certified Endoscope Reprocessor Knowledge Now

Ready to ace the proprofs sterile processing cer certification practice test?

Editorial: Review CompletedCreated By: Xianne Amber JavierUpdated Aug 28, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art quiz icon on golden yellow background free practice test for IAHCSMM CER decontamination and disinfection knowledge

This Certified Endoscope Reprocessor Practice Test helps you prepare for the IAHCSMM CER exam by practicing decontamination, high-level disinfection, and quality checks. Use exam-style scenarios with instant feedback to spot gaps before the test and reinforce safe, compliant workflows. For quick refreshers between questions, skim the sterile processing study guide and extra practice set .

According to the Spaulding classification, flexible gastrointestinal endoscopes are considered which device category?
Semi-critical
Critical
Single-use
Noncritical
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The primary purpose of leak testing a flexible endoscope before manual cleaning is to
Measure channel diameter
Assess valve spring tension
Prevent fluid invasion of the endoscope interior
Verify image quality
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Which personal protective equipment is most appropriate during manual cleaning of a contaminated flexible endoscope?
Lead apron and dosimeter
Sterile surgical gown and sterile gloves only
Hair cover and shoe covers only
Fluid-resistant gown, eye/face protection, and appropriate gloves
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High-level disinfection (HLD) is intended to destroy
Vegetative bacteria, mycobacteria, most viruses, and some fungi
All forms of microbial life including spores
Microbes visible to the naked eye
Only gram-negative bacteria
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Bedside pre-cleaning of a flexible endoscope should be performed
Immediately after the procedure, following the endoscope IFU
Only by the manufacturer representative
Only if visible soil is present
After transport to the storage cabinet
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During manual cleaning, the correct sequence generally includes
Soaking in enzymatic detergent, thorough brushing and flushing of all channels, then rinsing per IFU
Rinsing, drying, disinfecting, then brushing
Wiping exterior only, then storing
Sterilizing, then brushing with tap water
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True or False: Leak testing should be performed prior to immersion in fluids during the cleaning process.
True
False
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Which statement best describes biofilm risk in endoscope channels?
Biofilm is beneficial for lubrication
Biofilm cannot form on medical devices
Delays in cleaning can promote biofilm formation that is harder to remove
Biofilm is removed by air drying alone
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When preparing enzymatic detergent for manual cleaning, the CER should
Estimate concentration by color
Double the concentration for faster results
Mix to manufacturer-specified concentration and temperature using measured water quality
Use cold water only
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True or False: If the MEC test strip passes, contact time and temperature are no longer critical.
False
True
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Which action is appropriate if an endoscope fails the leak test?
Disinfect it twice to compensate
Use it only for short procedures
Remove from service and send for evaluation/repair per policy
Proceed with manual cleaning but avoid immersion
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True or False: If an endoscope is new from the manufacturer, it may be used on a patient without reprocessing.
False
True
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What is the best practice for test strip management for HLD MEC testing?
Use until the color no longer changes
Dry strips before use for accuracy
Follow expiration date, store per IFU, perform quality control as directed, and note open-bottle dating
Cut strips in half to save cost
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True or False: The reuse life of a high-level disinfectant can be extended if the solution appears clear.
True
False
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Which statement about water quality management during reprocessing is correct?
Any water is acceptable if filtered once a year
Water quality requirements are defined by device and chemical IFU and facility policies
Only sterile water may be used for all steps
Hot tap water always meets critical water standards
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Which step best minimizes recontamination risk after final rinse?
Using aseptic connection to drying equipment and storing in a clean, ventilated cabinet designed for endoscopes
Coiling tightly in a drawer
Leaving valves installed to seal channels
Placing the wet scope on a towel
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True or False: Only visible soil needs to be removed before HLD because disinfectants dissolve dried protein soils.
True
False
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For bronchoscopes used in immunocompromised patients, which practice aligns with many current guidelines when feasible?
High-level disinfection is always preferred over sterilization
Cold water rinsing only
Sterilization is preferred when device compatibility and resources allow
No drying is necessary
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True or False: The CER may deviate from the endoscope IFU if a more convenient method seems equivalent.
False
True
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When calculating chemical disinfectant change frequency, the CER should base decisions on
Manufacturer reuse life limits, MEC test results, and facility policy
Days of the week
Color of the solution
Operator preference
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Study Outcomes

  1. Understand Instrument Decontamination Protocols -

    By taking this certified endoscope reprocessor practice test, you will master key steps of manual cleaning and enzymatic processes to ensure safe reprocessing of flexible endoscopes.

  2. Apply High-Level Disinfection Standards -

    Learn to select and implement appropriate chemical disinfectants while following proprofs sterile processing guidelines to prevent cross-contamination.

  3. Analyze Central Service Workflows -

    Develop the ability to chart and optimize workflows that align with IAHCSMM best practices, as seen in typical cer practice test scenarios.

  4. Prepare Test-Taking Strategies for CER Exam -

    Gain targeted tips and techniques to improve confidence and accuracy when tackling questions on your cer certification practice test.

  5. Evaluate Endoscope Inspection & Leak Testing -

    Assess critical inspection points and leak testing procedures that mirror the rigor of an hspa cer practice test format.

  6. Reinforce Essential Sterile Processing Principles -

    Strengthen your foundational knowledge of infection control and equipment management through focused proprofs sterile processing review questions.

Cheat Sheet

  1. Immediate Pre-Cleaning -

    Always begin endoscope processing within one minute of use by wiping the exterior, flushing all channels with enzymatic detergent, and keeping ports open. This "soak and flush" step prevents soil from drying and aids later cleaning steps (CDC, 2021). Remember the phrase "Flush Fast, Fail Less" as a quick reminder to act immediately.

  2. Manual Cleaning with Enzymatic Detergents -

    Use a soft-bristled brush and an approved enzymatic detergent to scrub channels and external surfaces for at least two minutes, ensuring bioburden is fully dissolved (AAMI ST91). Proper agitation and enzymatic action break down proteins, making subsequent disinfection more effective. Think "Brush, Rinse, Inspect" to stay consistent.

  3. Leak Testing and Channel Integrity -

    Perform a manual or automated leak test before high-level disinfection to detect channel breaches and prevent fluid intrusion into internal components (FDA guidelines). A simple mnemonic is "LEAK = Look, Examine, Air-pressurize, Keep watch." Maintaining integrity preserves the endoscope's lifespan and ensures patient safety.

  4. High-Level Disinfection Parameters -

    Select an EPA-registered disinfectant such as glutaraldehyde, ortho-phthalaldehyde, or peracetic acid and strictly adhere to manufacturer-specified temperature and contact time (e.g., 2% glutaraldehyde at 20°C for 20 minutes). Validate each cycle with chemical indicators placed in the distal tip. Remember "Time + Temp = Triumph" to ensure complete microbial kill.

  5. Rinsing, Drying, and Storage -

    Thoroughly rinse channels with sterile or filtered water, flush with 70 - 90% alcohol, and apply forced air to remove residual moisture (AORN Perioperative Standards). Hang endoscopes vertically in a well-ventilated cabinet to prevent biofilm formation. Use a tracking log with biological indicators to document quality control and traceability.

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