Question 1

Instability,daily preparation,strong odor,and corrosion are some of the disadvantages of:

Accepted Answer

A)  halogens.
B)  iodophors.
C)  complex phenols.
D)  sodium hypochlorite.E) None of the above
F) A) and C) D

Question 2

By current infection control guidelines of the Organization for Safety and Asepsis Procedures (OSAP) ,instrument trays are considered to be _____ surfaces.

Accepted Answer

A)  touch
B)  transfer
C)  splash
D)  dropletE) A) and D)
F) None of the above

Question 3

Precleaning can be accomplished using:

Accepted Answer

A)  a disinfectant that cleans and disinfects.
B)  regular soap and water.
C)  alcohol and gauze.
D)  both a and bE) A) and B)
F) A) and C)

Question 4

Recommendations for mixing solutions of detergents or disinfectants include:

Accepted Answer

A)  making a fresh cleaning solution only when the current batch is completely used.
B)  making fresh cleaning solution each day and discarding any unused solution at the end of the treatment day.
C)  cleaning surfaces with a mist or aerosol to provide maximum coverage.
D)  preventing the container from drying, which causes brittleness.E) All of the above
F) A) and D)

Question 5

Housekeeping surfaces:

Accepted Answer

A)  include floors and walls, but not sinks, because they are considered a clinical contact surface.
B)  pose a risk for disease transmission in the dental healthcare setting.
C)  must be cleaned with a high-level disinfectant/sterilant.
D)  need to be cleaned with only a detergent or low-level disinfectant.E) All of the above
F) C) and D)

Question 6

The high-level disinfectant that does not require activation or mixing and has little odor is:

Accepted Answer

A)  chlorine dioxide.
B)  glutaraldehyde.
C)  ortho-phthalaldehyde (OP
A)  .
D)  sodium hypochlorite.E) B) and C)
F) A) and D)

Question 7

A product capable of killing spores is:

Accepted Answer

A)  sporicidal.
B)  iodophors.
C)  isopropyl alcohol.
D)  ammonia.E) B) and C)
F) B) and D)

Question 8

Following OSAP protocol,surface barriers:

Accepted Answer

A)  should be removed and discarded between patients after removal of gloves.
B)  should be removed and discarded between patients while hands are still gloved.
C)  should be disinfected using the spray-wipe-spray technique.
D)  eliminate the need to clean and disinfect surfaces at the beginning and end of each workday.E) B) and C)
F) A) and B)

Question 9

Which of the following is found on the label of a chemical agent?

Accepted Answer

A)  Directions for use.
B)  Precautionary statements for handling the product.
C)  Storage, disposal, and manufacturer's recommendations for use.
D)  All of the above.E) None of the above
F) B) and C)

Question 10

"Green" infection control protocols can be implemented in all of the following except:

Accepted Answer

A)  traditional film-based radiography.
B)  digital radiology.
C)  using only EPA-registered disinfectants.
D)  using recyclable product packaging.E) All of the above
F) C) and D)

Question 11

Acceptable barriers include:

Accepted Answer

A)  clear plastic wrap.
B)  plastic bags.
C)  tubing and plastic-backed paper.
D)  all of the above.E) C) and D)
F) None of the above

Question 12

The environmental surfaces that must be cleaned and decontaminated more rigorously than the others are:

Accepted Answer

A)  housekeeping surfaces.
B)  clinical contact surfaces.
C)  floors and walls.
D)  sinks.E) B) and D)
F) B) and C)

Question 13

For sterilization to occur using an immersion disinfectant,items must be immersed for a minimum of _____ hours.

Accepted Answer

A)  2
B)  6
C)  12
D)  24E) None of the above
F) A) and D)

Question 14

Under the CDC Guidelines for Infection Control in Dental Healthcare Settings-2003,housekeeping surfaces include:

Accepted Answer

A)  floors.
B)  walls.
C)  sinks.
D)  all of the above.E) A) and D)
F) None of the above

Question 15

To effectively clean and disinfect dental treatment rooms:

Accepted Answer

A)  latex examination gloves should be used.
B)  the surface should remain moist for the manufacturer's recommended time for fungicidal action, usually a minute.
C)  the surface should remain moist for the manufacturer's recommended time for fungicidal action, usually 10 minutes.
D)  the surface should remain moist for the manufacturer's recommended time for tuberculocidal action, usually 10 minutes.E) None of the above
F) B) and C)

Question 16

The method used to decontaminate a surface in a dental treatment area is:

Accepted Answer

A)  use of a surface barrier to prevent the surface from becoming contaminated.
B)  precleaning and disinfecting the surface between patients.
C)  wiping the surface with alcohol.
D)  both a and bE) B) and D)
F) C) and D) D

Question 17

The agency that regulates and registers disinfectants and chemical sterilants according to chemical classification is:

Accepted Answer

A)  OSHA.
B)  the FDA.
C)  the EPA.
D)  the CDC.E) A) and B)
F) B) and C)

Question 18

To avoid contamination in a dental treatment area,the best approach is to:

Accepted Answer

A)  disinfect the dental treatment tray, light handles, and patient chair.
B)  disinfect the light handle, chair handles, and anything the patient has touched.
C)  disinfect those surfaces touched by dental instruments.
D)  assume all surfaces have been contaminated.E) A) and B)
F) A) and C)

Question 19

Disinfectants used in dentistry must be:

Accepted Answer

A)  registered with the Environmental Protection Agency (EP
A)  .
B)  registered as hospital disinfectants with tuberculocidal claims.
C)  able to kill all spores.
D)  both a and bE) A) and D)
F) A) and C)

Question 20

One reason for taking precautions when using complex phenols for disinfection is that they:

Accepted Answer

A)  are corrosive and cannot be reused.
B)  must be used on hard surfaces only.
C)  can degrade some plastics or etch the surface of glass.
D)  leave chlorine smell on surfaces.E) All of the above
F) A) and B) C

Exam 20: Principles and Techniques of Disinfection

Instability,daily preparation,strong odor,and corrosion are some of the disadvantages of:

Correct AnswerverifiedD

By current infection control guidelines of the Organization for Safety and Asepsis Procedures (OSAP) ,instrument trays are considered to be _____ surfaces.

Correct AnswerverifiedShow Answer

Precleaning can be accomplished using:

Correct AnswerverifiedShow Answer

Recommendations for mixing solutions of detergents or disinfectants include:

Correct AnswerverifiedShow Answer

Housekeeping surfaces:

Correct AnswerverifiedShow Answer

The high-level disinfectant that does not require activation or mixing and has little odor is:

Correct AnswerverifiedShow Answer

A product capable of killing spores is:

Correct AnswerverifiedShow Answer

Following OSAP protocol,surface barriers:

Correct AnswerverifiedShow Answer

Which of the following is found on the label of a chemical agent?

Correct AnswerverifiedShow Answer

"Green" infection control protocols can be implemented in all of the following except:

Correct AnswerverifiedShow Answer

Acceptable barriers include:

Correct AnswerverifiedShow Answer

The environmental surfaces that must be cleaned and decontaminated more rigorously than the others are:

Correct AnswerverifiedShow Answer

For sterilization to occur using an immersion disinfectant,items must be immersed for a minimum of _____ hours.

Correct AnswerverifiedShow Answer

Under the CDC Guidelines for Infection Control in Dental Healthcare Settings-2003,housekeeping surfaces include:

Correct AnswerverifiedShow Answer

To effectively clean and disinfect dental treatment rooms:

Correct AnswerverifiedShow Answer

The method used to decontaminate a surface in a dental treatment area is:

Correct AnswerverifiedD

The agency that regulates and registers disinfectants and chemical sterilants according to chemical classification is:

Correct AnswerverifiedShow Answer

To avoid contamination in a dental treatment area,the best approach is to:

Correct AnswerverifiedShow Answer

Disinfectants used in dentistry must be:

Correct AnswerverifiedShow Answer

One reason for taking precautions when using complex phenols for disinfection is that they:

Correct AnswerverifiedC

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D

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D

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C