CRCST: Cleaning And Decontamination! Quiz

15 Questions | Total Attempts: 7167

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CRCST: Cleaning And Decontamination! Quiz

Do you know anything about cleaning and decontamination? The purpose of decontamination is to keep people safe by physically removing toxic materials quickly and easily with specified cleaning products. You should visibly clean dirty surfaces with soap and water before disinfection. You must use the appropriate cleaning or disinfectant product. This quiz will demonstrate your knowledge of cleaning and decontamination. All the best.


Questions and Answers
  • 1. 
    What is the preferred pH for detergents used for most cleaning processes?
    • A. 

      Low pH

    • B. 

      High pH

    • C. 

      Neutral pH

    • D. 

      It depends on the water temperature and exposure time

  • 2. 
    Which of the following statements about the use of mechanical washers is NOT true?
    • A. 

      Multi-level trays should be separated

    • B. 

      Trays with lids should be opened

    • C. 

      Instruments should be disassembled and opened

    • D. 

      All items should be washed on the same cycle

  • 3. 
    Water must be degassed each time the ultrasonic cleaner's tank is changed, because:
    • A. 

      Excess bubbles from filling reduce the energy of the cavitation process.

    • B. 

      Excess bubbles reduce the effectiveness of the detergent.

    • C. 

      Excess bubbles decrease the temperature of the tank.

    • D. 

      Excess bubbles make it difficult to see items being cleaned.

  • 4. 
    Written cleaning instructions for surgical instruments should be provided by
    • A. 

      The mechanical washer manufacturer.

    • B. 

      The device manufacturer.

    • C. 

      The detergent manufacturer.

    • D. 

      The healthcare facility.

  • 5. 
    Pyrogens
    • A. 

      Are fever-producing substances.

    • B. 

      Are microorganisms that have survived sterilization.

    • C. 

      Cause Creutzfeldt-Jakob disease.

    • D. 

      Are soil particles.

  • 6. 
    Untreated water
    • A. 

      Increases the likelihood of mineral scale deposits.

    • B. 

      Decreases the likelihood of mineral scale deposits.

    • C. 

      Is recommended to be used during the detergent cycle.

    • D. 

      Is used for the final rinse process.

  • 7. 
    These are used to breakdown fatty tissue on instruments.
    • A. 

      Protease enzymes

    • B. 

      Lipase enzymes

    • C. 

      Amylase enzymes

    • D. 

      Neutral pH cleaners

  • 8. 
    Instrument lubrication is performed.
    • A. 

      Immediately before use.

    • B. 

      After sterilization.

    • C. 

      After cleaning.

    • D. 

      Before cleaning.

  • 9. 
    To prevent coagulation of proteins, instruments should be pre-rinsed using 
    • A. 

      Cool water.

    • B. 

      Warm water.

    • C. 

      A neutral detergent.

    • D. 

      A disinfectant rinse.

  • 10. 
    Detergents used in mechanical cleaners should be:
    • A. 

      Low alkaline.

    • B. 

      Low acid.

    • C. 

      Low temperature.

    • D. 

      Low foaming.

  • 11. 
    Instruments should be cleaned using a:
    • A. 

      Circular motion.

    • B. 

      To and fro motion.

    • C. 

      Stiff metal brush.

    • D. 

      Water spray.

  • 12. 
    Powered surgical instruments:
    • A. 

      Cannot be immersed.

    • B. 

      Can be immersed.

    • C. 

      Should be cleaned at the point of use.

    • D. 

      Should be cleaned using a mechanical washer.

  • 13. 
    The decontamination area should have:
    • A. 

      Negative air flow in relation to the other areas of the department.

    • B. 

      Positive air flow in relation to the other areas of the department.

    • C. 

      15 air exchanges per hour.

    • D. 

      Positive air flow with 15 exchanges per hour.

  • 14. 
    The temperature in the decontamination area should be between
    • A. 

      55 to 60 degrees Fahrenheit.

    • B. 

      58 to 62 degrees Fahrenheit.

    • C. 

      60 to 65 degrees Fahrenheit.

    • D. 

      65 to 70 degrees Fahrenheit.

  • 15. 
    Rigid container filter retention plates should be
    • A. 

      Removed from the container and lid and cleaned separately.

    • B. 

      Manually cleaned and attached to the lid for mechanical cleaning.

    • C. 

      Left attached to the lid during the cleaning process.

    • D. 

      None of the above.

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