Question 1

When using surface disinfectants in the office, one cannot verify whether the microbes on the surface have been removed or killed.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following types of disinfectants is not tuberculocidal?

Accepted Answer

A) Chlorines 
B) Iodophors 
C) Complex phenols 
D) Quaternary ammonium compounds 
A) Chlorines 
B) Iodophors 
C) Complex phenols 
D) Quaternary ammonium compounds

Question 3

Storing supplies in drawers at chairside for retrieval during patient treatment can lend itself to cross-contamination of the drawer handle or of bulk items inside.

Accepted Answer

A) True 
 B)False

Question 4

If surface covers are used properly during patient treatment, which of the following procedures is not needed?

Accepted Answer

A) Wearing gloves for operatory clean-up 
B) Performing hand hygiene before putting on gloves at the beginning of the appointment 
C) Cleaning and disinfecting covered surfaces after the appointment 
D) Changing masks between patients 
A) Wearing gloves for operatory clean-up 
B) Performing hand hygiene before putting on gloves at the beginning of the appointment 
C) Cleaning and disinfecting covered surfaces after the appointment 
D) Changing masks between patients

Question 5

What should be done to a clinical contact surface after its protective surface cover has been carefully removed at the end of a patient appointment?

Accepted Answer

A) Clean and disinfect the surface with an intermediate-level disinfectant and then add a fresh cover for the next patient. 
B) Clean and disinfect the surface with a low-level disinfectant and then add a fresh cover for the next patient. 
C) Clean and disinfect the surface with a high-level disinfectant and then add a fresh cover for the next patient. 
D) Nothing-just add a fresh cover for the next patient. 
A) Clean and disinfect the surface with an intermediate-level disinfectant and then add a fresh cover for the next patient. 
B) Clean and disinfect the surface with a low-level disinfectant and then add a fresh cover for the next patient. 
C) Clean and disinfect the surface with a high-level disinfectant and then add a fresh cover for the next patient. 
D) Nothing-just add a fresh cover for the next patient.

Question 6

Gloves need not be worn during which of the following activities?

Accepted Answer

A) Cleaning and disinfecting an operatory surface 
B) Removing surface covers after the patient leaves 
C) Placing new surface covers between patients 
D) Assisting at chairside with a patient younger than age 6 years 
A) Cleaning and disinfecting an operatory surface 
B) Removing surface covers after the patient leaves 
C) Placing new surface covers between patients 
D) Assisting at chairside with a patient younger than age 6 years

Question 7

What kinds of dental operatory surfaces best lend themselves to being covered with a surface cover (barrier) rather than being cleaned and disinfected between each patient?

Accepted Answer

A) Those that are difficult to clean and disinfect 
B) Flat surfaces such as countertops 
C) The sink basin 
D) Walls 
A) Those that are difficult to clean and disinfect 
B) Flat surfaces such as countertops 
C) The sink basin 
D) Walls

Question 8

What should be done before disinfecting a contaminated operatory surface?

Accepted Answer

A) Pre-clean the surface. 
B) Cover the surface with a plastic surface cover for 10 minutes. 
C) Wipe the surface with a sterilant/high-level disinfectant. 
D) Make sure it has been uncovered and open to the air for at least 10 minutes. 
A) Pre-clean the surface. 
B) Cover the surface with a plastic surface cover for 10 minutes. 
C) Wipe the surface with a sterilant/high-level disinfectant. 
D) Make sure it has been uncovered and open to the air for at least 10 minutes.

Question 9

According to the CDC, low-level disinfectants can be used on clinical contact surfaces because they are EPA-registered as a hospital disinfectant and have been shown to kill:

Accepted Answer

A) Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa. 
B) Mycobacterium tuberculosis var.bovis. 
C) human immunodeficiency virus. 
D) human immunodeficiency virus and hepatitis B virus. 
A) Staphylococcus aureus, Salmonella choleraesuis, and Pseudomonas aeruginosa. 
B) Mycobacterium tuberculosis var.bovis. 
C) human immunodeficiency virus. 
D) human immunodeficiency virus and hepatitis B virus.

Question 10

Which of the following is a high-level disinfectant/sterilant?

Accepted Answer

A) Glutaraldehyde 
B) Alcohol 
C) Bleach 
D) Iodophor 
A) Glutaraldehyde 
B) Alcohol 
C) Bleach 
D) Iodophor

Question 11

Which of the following germicidal agents are least desirable as a surface disinfectant?

Accepted Answer

A) Alcohols 
B) Chlorines 
C) Iodophors 
D) Phenolics 
A) Alcohols 
B) Chlorines 
C) Iodophors 
D) Phenolics

Question 12

Which of the following is a housekeeping surface rather than a clinical contact surface?

Accepted Answer

A) Dental light handle 
B) Sink 
C) Switches on the hand-piece unit 
D) Dental light switch 
A) Dental light handle 
B) Sink 
C) Switches on the hand-piece unit 
D) Dental light switch

Question 13

Supplying sterile cotton pliers with each instrument set-up to reach into containers of bulk supplies (e.g., cotton rolls or cotton pledgets) is best referred to as:

Accepted Answer

A) antisepsis. 
B) unit dosing. 
C) aseptic retrieval. 
D) high-tech management. 
A) antisepsis. 
B) unit dosing. 
C) aseptic retrieval. 
D) high-tech management.

Question 14

How can you tell if a disinfectant has been registered with the EPA?

Accepted Answer

A) It is blue. 
B) There is a registration number on the label. 
C) Its label states that it is tuberculocidal. 
D) Its label states that it is a hospital disinfectant. 
A) It is blue. 
B) There is a registration number on the label. 
C) Its label states that it is tuberculocidal. 
D) Its label states that it is a hospital disinfectant.

Question 15

Which of the following is a housekeeping surface rather that a clinical contact surface and does not have to be covered or routinely cleaned and disinfected between each patient?

Accepted Answer

A) Light handles on the dental unit 
B) Wall next to the dental chair 
C) Switch that controls the hand pieces 
D) Radiographic equipment 
A) Light handles on the dental unit 
B) Wall next to the dental chair 
C) Switch that controls the hand pieces 
D) Radiographic equipment

Question 16

Which of the following is the strongest (most potent) disinfectant?

Accepted Answer

A) A tuberculocidal disinfectant 
B) A hospital-level disinfectant 
C) A low-level disinfectant 
D) An antiseptic 
A) A tuberculocidal disinfectant 
B) A hospital-level disinfectant 
C) A low-level disinfectant 
D) An antiseptic

Exam 13: Surface and Equipment Asepsis

When using surface disinfectants in the office, one cannot verify whether the microbes on the surface have been removed or killed.

Which of the following types of disinfectants is not tuberculocidal?

Storing supplies in drawers at chairside for retrieval during patient treatment can lend itself to cross-contamination of the drawer handle or of bulk items inside.

If surface covers are used properly during patient treatment, which of the following procedures is not needed?

What should be done to a clinical contact surface after its protective surface cover has been carefully removed at the end of a patient appointment?

Gloves need not be worn during which of the following activities?

What kinds of dental operatory surfaces best lend themselves to being covered with a surface cover (barrier) rather than being cleaned and disinfected between each patient?

What should be done before disinfecting a contaminated operatory surface?

According to the CDC, low-level disinfectants can be used on clinical contact surfaces because they are EPA-registered as a hospital disinfectant and have been shown to kill:

Which of the following is a high-level disinfectant/sterilant?

Which of the following germicidal agents are least desirable as a surface disinfectant?

Which of the following is a housekeeping surface rather than a clinical contact surface?

Supplying sterile cotton pliers with each instrument set-up to reach into containers of bulk supplies (e.g., cotton rolls or cotton pledgets) is best referred to as:

How can you tell if a disinfectant has been registered with the EPA?

Which of the following is a housekeeping surface rather that a clinical contact surface and does not have to be covered or routinely cleaned and disinfected between each patient?

Which of the following is the strongest (most potent) disinfectant?

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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