Deck 15: Infection Control and the Dental Radiographer

Question 1

In dental radiography, no ____ are used.
1) Critical instruments
2) Semicritical instruments
3) Noncritical instruments

A)1, 2, 3
B)1, 2
C)3 only
D)1 only

Answer 1

1 only

Question 2

Pathogens are:

A) Any microorganisms.
B) Bacteria but not viruses.
C) Viruses but not bacteria.
D) Microorganisms capable of causing disease.

Answer 2

Microorganisms capable of causing disease.

Question 3

____ is defined as the absence of pathogens, or disease-causing microorganisms.

A) Antiseptic
B) Antibiotic
C) Antiinfective
D) Asepsis

Answer 3

Asepsis

Question 4

Covering exposed surfaces with disposable materials ____ adequate protection ____ the need for surface cleaning and disinfection between patients.

A) provides; while eliminating
B) provides; but does not eliminate
C) does not provide; but does eliminate
D) neither provides; nor eliminates

Question 5

All dental professionals must use surgical masks and protective eyewear to protect the eyes and face:

A) Only during surgical procedures.
B) Whenever the high-speed handpiece is used.
C) Whenever spatter and aerosolized sprays of blood and saliva are likely.
D) If desired.

Question 6

Which of the following statements is true concerning cleaning and disinfection of the dental unit and environmental surfaces?

A) An intermediate-level disinfectant is recommended.
B) A low-level disinfectant is recommended.
C) EPA-registered chemical germicides labeled as both hospital disinfectants and tuberculocidals are classified as low-level disinfectants.
D) Both a and c.

Question 7

Highly resistant bacterial and mycotic (fungal) spores are not killed during disinfection procedures; however, highly resistant bacterial and mycotic spores are killed during sterilization.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second statement is false.
D) The first statement is false; the second statement is true.

Question 8

Protective clothing:

A) Must prevent skin exposure when contact with blood or other bodily fluids is anticipated.
B) Must prevent mucous membrane exposure when contact with blood or other bodily fluids is anticipated.
C) Should be worn home and laundered daily.
D) Both a and b.

Question 9

____ when using medical latex or vinyl gloves.

A) Gloves may be rewashed between patients and reused until damaged
B) Nonsterile gloves are recommended for examinations and nonsurgical procedures
C) Hands should not be washed before gloving
D) Hands should not be washed between patients

Question 10

After seating the patient, the radiographer must complete which of the following procedures before washing the hands and putting on gloves?
1) Chair adjustment
2) Headrest adjustment
3) Placing the lead apron

A)1, 2, 3
B)1, 2
C)2, 3
D)3 only

Question 11

Preparation of supplies and equipment involves sterilizing which of the following items?

A) Film
B) Film-holding devices
C) Lead apron
D) PID

Question 12

Before dental x-ray films are exposed, the treatment area must be prepared using:

A) Antiseptic.
B) Aseptic technique.
C) Sterilization of critical instruments.
D) Low-level disinfectant.

Question 13

Recommendations concerning gloves would fall under which of the following categories of infection control practices that directly relate to dental radiography procedures?

A) Protective attire and barrier techniques
B) Hand washing and care of hands
C) Sterilization or disinfection of instruments
D) Cleaning and disinfection of dental unit and environmental surfaces

Question 14

Which of the following viruses may be present in oral secretions?
1) Cytomegalovirus.
2) Hepatitis B virus.
3) Herpes simplex virus.
4) Human immunodeficiency virus.

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

Question 15

Commercially available barrier envelopes:

A) Minimize contamination before exposure of the film.
B) Minimize contamination after exposure of the film.
C) Are made of a material that blocks the passage of photons.
D) Are made of a material that blocks the passage of electrons.

Question 16

Critical instruments are defined as instruments:

A) That are used to penetrate soft tissue or bone.
B) That contact but do not penetrate soft tissue.
C) That contact but do not penetrate bone.
D) Or devices that do not come in contact with mucous membranes.

Question 17

Infectious diseases may be transmitted from:
1) A patient to the dental professional.
2) The dental professional to a patient.
3) One patient to another patient.

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

Question 18

Antiseptic is:

A) The absence of pathogens, or disease-causing microorganisms.
B) A substance that inhibits the growth of bacteria.
C) The use of a chemical or physical procedure to inhibit or destroy pathogens.
D) The act of sterilizing.

Question 19

Which of the following surfaces on the x-ray machine must be covered or disinfected?
1) Control panel
2) Exposure button
3) Tubehead
4) Position-indicating device (PID)

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

Question 20

Which of the following are considered to be semicritical instruments?

A) The exposure button
B) The x-ray control panel
C) The lead apron
D) X-ray film-holding devices

Question 21

When handling film with barrier envelopes, the barrier envelopes are opened with ____ hands and the films unwrapped with ____ hands.

A) gloved; gloved
B) gloved; nongloved
C) nongloved; gloved
D) nongloved; nongloved

Question 22

Preparation of the dental radiographer should include:

A) Removing film-holding devices before hand washing.
B) Removing film-holding devices after hand washing but before placing gloves.
C) Mandatory use of a surgical mask and protective eyewear.
D) Optional use of a surgical mask and protective eyewear.

Question 23

Exposed films should ____ dried and then placed in a ____ for transport to the darkroom for processing.

A) not be; gloved hand
B) be; gloved hand
C) not be; disposable container
D) be; disposable container

Question 24

When handling film with barrier envelopes, the films are unwrapped with ____ hands, and when handling film without barrier envelopes, the films are unwrapped with ____ hands.

A) gloved; gloved
B) gloved; nongloved
C) nongloved; gloved
D) nongloved; nongloved