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Endoscope Sterilization Methods Flashcards

7 cards from real CER practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which organization sets sterilization standards for endoscope reprocessing in the United States?

    Answer: AAMI, AORN, and SGNA

    Multiple professional organizations including AAMI, AORN, and SGNA publish guidelines and standards relevant to endoscope sterilization and reprocessing.

  2. EO sterilization is most appropriate for endoscopes that are:

    Answer: Heat and moisture sensitive and have long lumens with compatible materials

    EO is effective for heat- and moisture-sensitive devices with complex lumens, as the gas penetrates packaging and reaches all surfaces when used correctly.

  3. The D-value in sterilization science refers to:

    Answer: The time required to reduce a microbial population by 90%

    The D-value (decimal reduction time) is the time required to reduce a microbial population by one log (90%) under defined conditions.

  4. A biological indicator (BI) used to monitor EO sterilization contains spores of which organism?

    Answer: Bacillus atrophaeus

    Bacillus atrophaeus (formerly B. subtilis var. niger) spores are used as the biological indicator for EO sterilization monitoring.

  5. Which sterilization method produces the fewest environmental and occupational safety concerns?

    Answer: Hydrogen peroxide plasma (STERRAD)

    Hydrogen peroxide plasma sterilization (STERRAD) produces only water and oxygen as by-products, presenting minimal environmental and occupational hazards.

  6. When sterilizing an endoscope with internal channels using a chemical sterilant, the most critical step is:

    Answer: Flushing all channels to ensure sterilant contact with luminal surfaces

    All lumens and channels must be actively perfused with sterilant to ensure contact kill of microorganisms on internal surfaces.

  7. What is the primary advantage of low-temperature sterilization methods over steam sterilization for endoscopes?

    Answer: They are compatible with heat-sensitive materials without causing damage

    Low-temperature sterilization methods protect the heat-sensitive components of flexible endoscopes from damage caused by the high temperatures of steam sterilization.