Question 1

Precautions when using glutaraldehyde include:

Accepted Answer

A)  avoid inhaling the fumes.
B)  always rinse instruments thoroughly prior to any intraoral use.
C)  wear PPE to protect the eyes, skin, and lungs.
D)  all of the above.

Question 2

One difference between a disinfectant and sterilant is:

Accepted Answer

A)  a disinfectant kills disease-causing microorganisms remaining on surfaces after precleaning.
B)  a disinfectant destroys all microorganisms.
C)  a disinfectant is destroys all spores and fungi.
D)  both a and b

Question 3

One of the benefits of using a complex phenol solution for disinfection is that they:

Accepted Answer

A)  are limited to one day of use.
B)  leave a residual film on treated surfaces increasing the disinfection benefit.
C)  are sporicidal.
D)  are compatible with metal, glass, rubber, and plastic.

Question 4

According to the EPA,synthetic phenol compounds are categorized as intermediate-level hospital disinfectants.Phenols can be used on:

Accepted Answer

A)  metal.
B)  glass.
C)  rubber or plastic.
D)  all of the above.

Question 5

Chemicals that destroy or inactivate most species of pathogenic microorganisms on inanimate surfaces are called:

Accepted Answer

A)  disinfectants.
B)  sterilants.
C)  antiseptics.
D)  both a and c

Question 6

The purpose of precleaning a surface is:

Accepted Answer

A)  to reduce the number of microbes.
B)  to remove accumulated blood, saliva, and other body fluids.
C)  do both a and b
D)  none of the above; precleaning is not necessary when a surface is to be disinfected.

Question 7

A product capable of killing a virus should be labeled:

Accepted Answer

A)  fungicidal.
B)  sporicidal.
C)  tuberculocidal.
D)  virucidal.

Question 8

The agency responsible for the Bloodborne Pathogens Standards that requires contaminated surfaces to be disinfected between patients,even if no evidence of contamination is visible is:

Accepted Answer

A)  the CDC.
B)  OSHA.
C)  the FDA.
D)  none of the above.

Question 9

Which of the following can be used as a surface disinfectant in the dentistry?

Accepted Answer

A)  Iodophors
B)  Ethyl alcohol
C)  Isopropyl alcohol
D)  Ammonia

Question 10

Some microorganisms may survive on outside the host on environmental surfaces.The organism of concern to dentistry that can survive five weeks outside the host is:

Accepted Answer

A)  herpes simplex.
B)  tuberculosis.
C)  none of the above.
D)  both a and b

Question 11

The appropriate disinfection protocol to follow when a surface has been covered with a barrier is:

Accepted Answer

A)  none. It does not have to be cleaned or disinfected.
B)  clean and disinfect the surface at the beginning of the workday.
C)  clean and disinfect the surface at the end of the workday.
D)  clean and disinfect the surface at the beginning and end of each workday.

Question 12

The chemical disinfectant classified as an intermediate-level agent that is no longer recommended for use in dentistry is:

Accepted Answer

A)  glutaraldehyde.
B)  alcohol.
C)  phenols.
D)  sodium hypochlorite.

Question 13

The protocol to follow to minimize contamination of touch and transfer surfaces from splash,spatter,and surface droplets is to:

Accepted Answer

A)  preclean and disinfect the surfaces after each use with soap, water, and alcohol.
B)  use a liquid sterilant weekly.
C)  apply an acceptable barrier following precleaning and disinfection.
D)  apply, remove, and reapply surface barriers with clean hands.

Question 14

The use of barriers on surfaces and equipment can prevent contamination of contact areas.The correct protocol for their use would include:

Accepted Answer

A)  removing and discarding with gloved hands, and replacing using clean gloves between patients.
B)  using a barrier resistant to fluids.
C)  disinfecting each barrier using the spray-wipe-spray technique.
D)  both a and b

Question 15

Carpet in dental treatment areas:

Accepted Answer

A)  is as easy to clean as nonporous hard-surface flooring.
B)  can be disinfected.
C)  harbors bacteria but not fungi.
D)  harbors both bacteria and fungi.

Question 16

The following are considered single-use items except:

Accepted Answer

A)  patient napkins.
B)  plastic orthodontic brackets.
C)  metal impression trays.
D)  irrigating syringes.

Question 17

If the surface below the barrier is inadvertently touched when removing a contaminated barrier,the protocol to follow indicates:

Accepted Answer

A)  the surface does not have to be cleaned and disinfected.
B)  the surface needs to be cleaned and disinfected.
C)  all treatment room surfaces need to be cleaned and disinfected.
D)  a double layer of protective material needs to be placed over the contaminated surface.

Question 18

All of the following surfaces should be protected from contamination with barriers except:

Accepted Answer

A)  head rest and control buttons on the chair.
B)  light handles, light switches, and x-ray control switches.
C)  light-curing device, drawer, and air-water syringe handles.
D)  counter tops in the reception area.

Exam 20: Principles and Techniques of Disinfection

If the surface below the barrier is inadvertently touched when removing a contaminated barrier,the protocol to follow indicates:

Correct Answer
verified

The purpose of precleaning a surface is:

Correct Answer
verified

One difference between a disinfectant and sterilant is:

Correct Answer
verified

According to the EPA,synthetic phenol compounds are categorized as intermediate-level hospital disinfectants.Phenols can be used on:

Correct Answer
verified

Carpet in dental treatment areas:

Correct Answer
verified

All of the following surfaces should be protected from contamination with barriers except:

Correct Answer
verified

The agency responsible for the Bloodborne Pathogens Standards that requires contaminated surfaces to be disinfected between patients,even if no evidence of contamination is visible is:

Correct Answer
verified

Chemicals that destroy or inactivate most species of pathogenic microorganisms on inanimate surfaces are called:

Correct Answer
verified

A product capable of killing a virus should be labeled:

Correct Answer
verified

The appropriate disinfection protocol to follow when a surface has been covered with a barrier is:

Correct Answer
verified

Which of the following can be used as a surface disinfectant in the dentistry?

Correct Answer
verified

Some microorganisms may survive on outside the host on environmental surfaces.The organism of concern to dentistry that can survive five weeks outside the host is:

Correct Answer
verified

The use of barriers on surfaces and equipment can prevent contamination of contact areas.The correct protocol for their use would include:

Correct Answer
verified

The following are considered single-use items except:

Correct Answer
verified

One of the benefits of using a complex phenol solution for disinfection is that they:

Correct Answer
verified

Precautions when using glutaraldehyde include:

Correct Answer
verified

The chemical disinfectant classified as an intermediate-level agent that is no longer recommended for use in dentistry is:

Correct Answer
verified

The protocol to follow to minimize contamination of touch and transfer surfaces from splash,spatter,and surface droplets is to:

Correct Answer
verified

Exam 20: Principles and Techniques of Disinfection

If the surface below the barrier is inadvertently touched when removing a contaminated barrier,the protocol to follow indicates:

Correct AnswerverifiedShow Answer

The purpose of precleaning a surface is:

Correct AnswerverifiedShow Answer

One difference between a disinfectant and sterilant is:

Correct AnswerverifiedShow Answer

According to the EPA,synthetic phenol compounds are categorized as intermediate-level hospital disinfectants.Phenols can be used on:

Correct AnswerverifiedShow Answer

Carpet in dental treatment areas:

Correct AnswerverifiedShow Answer

All of the following surfaces should be protected from contamination with barriers except:

Correct AnswerverifiedShow Answer

The agency responsible for the Bloodborne Pathogens Standards that requires contaminated surfaces to be disinfected between patients,even if no evidence of contamination is visible is:

Correct AnswerverifiedShow Answer

Chemicals that destroy or inactivate most species of pathogenic microorganisms on inanimate surfaces are called:

Correct AnswerverifiedShow Answer

A product capable of killing a virus should be labeled:

Correct AnswerverifiedShow Answer

The appropriate disinfection protocol to follow when a surface has been covered with a barrier is:

Correct AnswerverifiedShow Answer

Which of the following can be used as a surface disinfectant in the dentistry?

Correct AnswerverifiedShow Answer

Some microorganisms may survive on outside the host on environmental surfaces.The organism of concern to dentistry that can survive five weeks outside the host is:

Correct AnswerverifiedShow Answer

The use of barriers on surfaces and equipment can prevent contamination of contact areas.The correct protocol for their use would include:

Correct AnswerverifiedShow Answer

The following are considered single-use items except:

Correct AnswerverifiedShow Answer

One of the benefits of using a complex phenol solution for disinfection is that they:

Correct AnswerverifiedShow Answer

Precautions when using glutaraldehyde include:

Correct AnswerverifiedShow Answer

The chemical disinfectant classified as an intermediate-level agent that is no longer recommended for use in dentistry is:

Correct AnswerverifiedShow Answer

The protocol to follow to minimize contamination of touch and transfer surfaces from splash,spatter,and surface droplets is to:

Correct AnswerverifiedShow Answer

Correct Answer
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