Question 1

A(n) _____ should never be used as a surface disinfectant.

Accepted Answer

A) high-level 
B) intermediate-level 
C) low-level 
D) hospital 
A) high-level 
B) intermediate-level 
C) low-level 
D) hospital A

Question 2

How often should a surface cover on a dental light handle or light switch be replaced?

Accepted Answer

A) After every patient 
B) After every three patients 
C) When the cover is visibly soiled 
D) Only after a high-speed handpiece is used on a patient 
A) After every patient 
B) After every three patients 
C) When the cover is visibly soiled 
D) Only after a high-speed handpiece is used on a patient A

Question 3

If you properly use surface covers on clinical contact surfaces at chairside for each patient, which of the following is not necessary?

Accepted Answer

A) Use gloves for patient care. 
B) Clean and disinfect those surfaces between patients. 
C) Package the instruments before sterilization. 
D) Wear protective clothing at chairside. 
A) Use gloves for patient care. 
B) Clean and disinfect those surfaces between patients. 
C) Package the instruments before sterilization. 
D) Wear protective clothing at chairside. B

Question 4

Which of the following types of disinfectants can contain the same active ingredient as bleach?

Accepted Answer

A) Iodophors 
B) Phenolics 
C) Chlorines 
D) Quaternary ammonium compounds 
A) Iodophors 
B) Phenolics 
C) Chlorines 
D) Quaternary ammonium compounds

Question 5

The labels of properly approved surface disinfectants contain a registration number from which federal agency?

Accepted Answer

A) EPA 
B) FDA 
C) CDC 
D) OSHA 
A) EPA 
B) FDA 
C) CDC 
D) OSHA

Question 6

Hospital disinfectants are low-level disinfectants that have been shown to kill which of the following?

Accepted Answer

A) Streptococcus mutans, bacterial spores, and Mycobacterium tuberculosis var.bovis 
B) Mycobacterium tuberculosis var.bovis 
C) Bacterial spores 
D) Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa 
A) Streptococcus mutans, bacterial spores, and Mycobacterium tuberculosis var.bovis 
B) Mycobacterium tuberculosis var.bovis 
C) Bacterial spores 
D) Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa

Question 7

What is the purpose of the second spray in the spray-wipe-spray procedure?

Accepted Answer

A) To sterilize the surface 
B) To disinfect the surface 
C) To clean the surface 
D) To wash off the previous spray material 
A) To sterilize the surface 
B) To disinfect the surface 
C) To clean the surface 
D) To wash off the previous spray material

Question 8

Which of the following microbes is not killed by low-level disinfectants or intermediate-level disinfectants?

Accepted Answer

A) Mycobacterium tuberculosis 
B) Pseudomonas aeruginosa 
C) Staphylococcus aureus 
D) Bacterial spores 
A) Mycobacterium tuberculosis 
B) Pseudomonas aeruginosa 
C) Staphylococcus aureus 
D) Bacterial spores

Question 9

Which of the following is used to kill microbes on the skin just before an injection?

Accepted Answer

A) Sterilant 
B) Antiseptic 
C) Antibiotic 
D) Disinfectant 
A) Sterilant 
B) Antiseptic 
C) Antibiotic 
D) Disinfectant

Question 10

Which of the following protective barriers are to be worn when disinfecting a surface?

Accepted Answer

A) Utility gloves 
B) Utility gloves and mask 
C) Utility gloves, mask, and protective clothing 
D) Utility gloves, mask, protective clothing, protective eyewear 
A) Utility gloves 
B) Utility gloves and mask 
C) Utility gloves, mask, and protective clothing 
D) Utility gloves, mask, protective clothing, protective eyewear

Question 11

If you are using a disinfectant wipe (a paper towelette saturated with a disinfectant) rather than a spray disinfectant, how many wipes should be used to achieve proper cleaning and disinfection of a surface?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 12

What is the most important property of a surface cover?

Accepted Answer

A) It must be made of latex. 
B) It must be made of aluminum foil. 
C) It must be disinfected before being placed on a surface. 
D) It must be impervious to water. 
A) It must be made of latex. 
B) It must be made of aluminum foil. 
C) It must be disinfected before being placed on a surface. 
D) It must be impervious to water.

Question 13

Which of the following terms indicate the strongest microbial killing power?

Accepted Answer

A) A virucidal agent 
B) A sporicidal agent 
C) A tuberculocidal agent 
D) A bacteriocidal agent 
A) A virucidal agent 
B) A sporicidal agent 
C) A tuberculocidal agent 
D) A bacteriocidal agent

Question 14

How should a cotton roll or other items be retrieved from a bulk container at chairside?

Accepted Answer

A) With your fingers 
B) With sterile cotton pliers or tongs 
C) By dumping the container contents onto a sterile towel and picking one up with your gloved fingers 
D) With gloved hands 
A) With your fingers 
B) With sterile cotton pliers or tongs 
C) By dumping the container contents onto a sterile towel and picking one up with your gloved fingers 
D) With gloved hands

Question 15

The spray-wipe-spray procedure is a technique for:

Accepted Answer

A) washing your hands. 
B) disinfecting surfaces or objects. 
C) adding a rust inhibitor to instruments prior to ultrasonic cleaning. 
D) flushing out your eye after a chemical exposure. 
A) washing your hands. 
B) disinfecting surfaces or objects. 
C) adding a rust inhibitor to instruments prior to ultrasonic cleaning. 
D) flushing out your eye after a chemical exposure.

Question 16

Manufacturers have added alcohol to which of the following types of disinfectants to make it tuberculocidal?

Accepted Answer

A) Iodophors 
B) Phenolics 
C) Chlorines 
D) Quaternary ammonium compounds 
A) Iodophors 
B) Phenolics 
C) Chlorines 
D) Quaternary ammonium compounds

Question 17

Which of the following surfaces is usually not involved in patient-to-patient spread of microbes?

Accepted Answer

A) Air/water syringe handle 
B) Curing light handle 
C) Sink 
D) Handpiece control switch 
A) Air/water syringe handle 
B) Curing light handle 
C) Sink 
D) Handpiece control switch

Question 18

Which of the following best describes an intermediate-level disinfectant?

Accepted Answer

A) A virucidal agent 
B) A sporicidal agent 
C) A tuberculocidal agent 
D) A bactericidal agent 
A) A virucidal agent 
B) A sporicidal agent 
C) A tuberculocidal agent 
D) A bactericidal agent

Question 19

Why are two disinfecting towelettes used during the wipe-discard-wipe procedure?

Accepted Answer

A) The first one wets the surface, and the second one cleans the surface. 
B) The first one cleans the surface, and the second one disinfects the surface. 
C) The first one disinfects the surface, and the second one cleans the surface. 
D) The first one disinfects the surface, and the second one re-disinfects the surface for double assurance. 
A) The first one wets the surface, and the second one cleans the surface. 
B) The first one cleans the surface, and the second one disinfects the surface. 
C) The first one disinfects the surface, and the second one cleans the surface. 
D) The first one disinfects the surface, and the second one re-disinfects the surface for double assurance.

Question 20

Your office just received a new disinfectant.What is the easiest way to find out how it should be used?

Accepted Answer

A) Look up the product on the internet. 
B) Call the manufacturer. 
C) Contact the sales representative who recommended the product. 
D) Read its label. 
A) Look up the product on the internet. 
B) Call the manufacturer. 
C) Contact the sales representative who recommended the product. 
D) Read its label.

Exam 13: Surface and Equipment Asepsis

A(n) _____ should never be used as a surface disinfectant.

How often should a surface cover on a dental light handle or light switch be replaced?

If you properly use surface covers on clinical contact surfaces at chairside for each patient, which of the following is not necessary?

Which of the following types of disinfectants can contain the same active ingredient as bleach?

The labels of properly approved surface disinfectants contain a registration number from which federal agency?

Hospital disinfectants are low-level disinfectants that have been shown to kill which of the following?

What is the purpose of the second spray in the spray-wipe-spray procedure?

Which of the following microbes is not killed by low-level disinfectants or intermediate-level disinfectants?

Which of the following is used to kill microbes on the skin just before an injection?

Which of the following protective barriers are to be worn when disinfecting a surface?

If you are using a disinfectant wipe (a paper towelette saturated with a disinfectant) rather than a spray disinfectant, how many wipes should be used to achieve proper cleaning and disinfection of a surface?

What is the most important property of a surface cover?

Which of the following terms indicate the strongest microbial killing power?

How should a cotton roll or other items be retrieved from a bulk container at chairside?

The spray-wipe-spray procedure is a technique for:

Manufacturers have added alcohol to which of the following types of disinfectants to make it tuberculocidal?

Which of the following surfaces is usually not involved in patient-to-patient spread of microbes?

Which of the following best describes an intermediate-level disinfectant?

Why are two disinfecting towelettes used during the wipe-discard-wipe procedure?

Your office just received a new disinfectant.What is the easiest way to find out how it should be used?

Scope of Microbiology and Infection Control

Characteristics of Microorganisms

Development of Infectious Diseases

Emerging Diseases

Oral Microbiology and Plaque-Associated Diseases

Bloodborne Pathogens

Oral and Respiratory Diseases

Infection Control Rationale and Regulations

Immunization

Hand Hygiene

Personal Protective Equipment

Instrument Processing

Dental Unit Water Asepsis and Air Quality

Aseptic Techniques

Laboratory and Radiographic Asepsis

Waste Management

Preventing Sharps Injuries

A Clinical Asepsis Protocol

General Office Safety and Asepsis

Greener Infection Control

Cross-Contamination Between Work and Home

About the Occupational Safety and Health Administration

Osha Inspections

Management of the Office Safety Program

Managing Chemicals Safely

Employee Fire Prevention and Emergency Action Plans

Infection Control Concerns During Remodeling or Construction

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