IAHCSMM- CRCST Exam Sample Quiz

15 Questions | Total Attempts: 2397

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IAHCSMM- CRCST Exam Sample Quiz

A Certified Registered Central Service Technician is charged with sterilizing materials, instruments, and supplies used to care for patients. What do you know about the tools that are used for cleaning the various objects? Take up this IAHCSMM- CRCST Exam Sample Test below and practice the tools you will get to use once you become certified. All the best!


Questions and Answers
  • 1. 
    Which of the following is a system used to treat the final rinse water used for cleaning?
    • A. 

      Water conductivity

    • B. 

      Sanitization

    • C. 

      Deionization

    • D. 

      Sterilization

  • 2. 
    Bluish or rainbow-type stains are caused by _______ in water.
    • A. 

      Chlorides and solids

    • B. 

      Iron and silicates

    • C. 

      Calcium

    • D. 

      Fluoride

  • 3. 
    The ideal level of silicates in water used for cleaning is _______ ppm or less.
    • A. 

      200

    • B. 

      150

    • C. 

      100

    • D. 

      50

  • 4. 
    Purified water should have a ph of_______.
    • A. 

      4.5-5.5

    • B. 

      5.5-6.5

    • C. 

      6.5-7.5

    • D. 

      7.5-8.5

  • 5. 
    Tap water should ideally have a chloride concentration of _____ ppm or less.
    • A. 

      200

    • B. 

      150

    • C. 

      100

    • D. 

      50

  • 6. 
    Water purification usually involves the use of a...
    • A. 

      Pre-filter

    • B. 

      Post-filter

    • C. 

      Pre-filter or post-filter

    • D. 

      Pre-and post-filter

  • 7. 
    Water that is turbid is...
    • A. 

      Hot

    • B. 

      Tepid

    • C. 

      Clear

    • D. 

      Cloudy

  • 8. 
    Water softeners are used to remove _______ in the water.
    • A. 

      Iron and pyrogens

    • B. 

      Silicates and pyrogens

    • C. 

      Chloride and iron

    • D. 

      Calcium and magnesium

  • 9. 
    Deionized water is used for...
    • A. 

      Sterile irrigation

    • B. 

      Heating/cooling therapy units

    • C. 

      Injection

    • D. 

      Steam sterilizers

  • 10. 
    Which of the following can be removed from water when reverse osmosis process is used?
    • A. 

      Bacteria

    • B. 

      Pyrogens

    • C. 

      Endotoxins

    • D. 

      All of the above

  • 11. 
    Multi-enzymatic cleaning products containing lipase are useful for cleaning...
    • A. 

      Protein soils

    • B. 

      Starches

    • C. 

      Fats

    • D. 

      Sugars

  • 12. 
    Which of the following kills microorganisms?
    • A. 

      Soaps

    • B. 

      Detergents

    • C. 

      Germicidal presoaks

    • D. 

      Enzyme presoaks

  • 13. 
    The process of pre-cleaning should begin...
    • A. 

      As soon as devices reach the Central Service area

    • B. 

      Immediately after the completion of an invasive procedure

    • C. 

      Immediately after instruments are inspected

    • D. 

      Before items are sorted

  • 14. 
    The main purpose of manual cleaners is to...
    • A. 

      Kill microorganisms

    • B. 

      Remove soil

    • C. 

      Reduce cleaning costs

    • D. 

      Provide back-ups if automated equipment is not working

  • 15. 
    Which of the following techniques for brushing instruments should be used?
    • A. 

      Brushing should be done under water

    • B. 

      Brushing should be done above water

    • C. 

      Brushing should be done against the grain of the device

    • D. 

      Brushes made of wire are the best because of their exceptional cleaning ability

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