Chapter 15: Infection Control and the Dental Radiographer
Iannucci: Dental Radiography, 5th Edition
MULTIPLE CHOICE
1. Infection control is critical in your dental operatory because pathogens can be transmitted
easily through which of the following
1. your patient to you.
2. you to your patient.
3. from one patient to another patient.
a.
1, 2, 3
b.
1, 3
c.
2, 3
d.
1, 2
2. Pathogens are
a.
any microorganisms.
b.
bacteria but not viruses.
c.
viruses but not bacteria.
d.
microorganisms capable of causing disease.
3. 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
4. Another term for infection control is __________, which means the absence of pathogens, or
disease-causing microorganisms.
a.
antiseptic
b.
antibiotic
c.
antiinfective
d.
asepsis
5. 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.
6. (1) Highly resistant bacterial and mycotic (fungal) spores are not killed during disinfection
procedures; (2) 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.
7. Recommendations concerning gloves would fall under which of the following categories of
infection control practices that directly relate to dental imaging procedures?
a.
Personal protective equipment
b.
Hand washing and care of hands
c.
Sterilization or disinfection of instruments
d.
Cleaning and disinfection of dental unit and environmental surfaces
8. What is important for you to remember about your protective clothing?
a.
Select clothing that prevents skin and mucous membrane exposure to blood or
other bodily fluids.
b.
You can re-wear your protective clothing a second day if it is not visibly soiled.
c.
You can wear your protective clothing home.
d.
You have to change your protective clothing daily or more frequently if it is
visibly soiled.
9. Which of the following is true regarding your usage of disposable medical gloves?
a.
You may rewash you gloves between patients until they show visible damage.
b.
You can use nonsterile gloves for examinations and nonsurgical procedures.
c.
You do not need to wash your hands before gloving.
d.
You do not need to wash your hands between patients.
10. Under which of the following conditions must you wear your mask and safety glasses?
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
11. 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.
12. In dental imaging, 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
13. 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.
Receptor–holding devices
14. Which of the following can be used for cleaning and disinfection of the dental unit and
environmental surfaces?
a.
Bleach-free disinfectant wipes
b.
EPA-registered chemical germicides that are labeled as hospital disinfectants
c.
EPA-registered chlorine-containing compounds labeled as both hospital
disinfectants and tuberculocidals
d.
Dishwashing liquid and water
15. Which of the following should you do to prepare your treatment room prior to taking a dental
image?
a.
Wipe with an antiseptic.
b.
Follow infection control procedures.
c.
Sterilize critical instruments.
d.
Wipe with a low-level disinfectant.
16. 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
17. 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
18. 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.
19. Preparation of supplies and equipment involves sterilizing which of the following items?
a.
Film
b.
Film-holding devices
c.
Lead apron
d.
PID
20. 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. Placement of the lead apron
a.
1, 2, 3
b.
1, 2
c.
2, 3
d.
3 only
21. Which of the following items should be removed by the patient during preparation for dental
image procedures?
1. Eyeglasses
2. Dentures
3. Chewing gum
a.
1, 2, 3
b.
2, 3
c.
1, 3
d.
2 only
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.
23. Exposed receptors 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
24. 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
25. 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
26. (1) The contaminated barriers should be removed while the dental radiographer is wearing
gloves. (2) The barriers should be disposed of after the patient has left the room.
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.
27. (1) Contaminated film is placed in a disposable container that is carried to the processor with
gloved hands. (2) The film should be developed after the patient has been dismissed from the
radiology area.
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.
28. (1) Digital sensors can be disinfected, sterilized, placed in cold sterilization, or be placed in
barriers. (2) When using barriers, disinfect the sensor, cover both the sensor and the wire
connection with a plastic barrier, and then cover with a finger cot to provide added protection.
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.
29. There are three conditions that must be present for an infection to occur. Which of the
following conditions is a necessary component for an infection to occur?
a.
Small amounts of the infectious disease with low infectivity
b.
A host that is not vulnerable to infection
c.
A way for the infectious disease to enter the host
d.
An aseptic environment
30. Which of the following should you do first when using a daylight loader for film processing?
a.
Put on gloves.
b.
Place a new paper cup and gloves in the daylight loader.
c.
Put contaminated film in daylight loader.
d.
Put hands through openings of daylight loader.