CST Chapter 7 Quiz

16 Questions

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Chapter 7 quiz


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 cause by _______ in water
    • A. 

      Chloride 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-filter and post-filter

  • 7. 
    Water that is turbid is
    • A. 

      Hot

    • B. 

      Tepid

    • C. 

      Clear

    • D. 

      Cloudy

  • 8. 
    Water softners 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 a reverse osmosis process is used
    • A. 

      Bacteria

    • B. 

      Pyrogens

    • C. 

      Endotoxins

    • D. 

      All of the above

  • 11. 
    Mulit-enzymatic cleaning products containging 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 detergents

    • D. 

      Enzyme presoaks

  • 13. 
    The process or 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. 

      Removing 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