CST Chapter 7 Quiz
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Chapter 7 quiz
- 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
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