Chapter 24: Imaging of Patients with Special Needs
Iannucci: Dental Radiography, 5th Edition
MULTIPLE CHOICE
1. The gag reflex is elicited by stimulation of the sensitive tissues of the
a.
larynx.
b.
pharynx.
c.
soft palate.
d.
hard palate.
2. The gag reflex is a(n) ___________ effort, preceded by ____________ of respiration.
a.
voluntary; an increased rate
b.
involuntary; cessation
c.
voluntary; cessation
d.
involuntary; an increased rate
3. Which receptor placement is most likely to elicit the gag reflex?
a.
Maxillary premolar
b.
Maxillary molar
c.
Mandibular premolar
d.
Mandibular molar
4. Which of the following choices would represent the suggested receptor placement sequence
for a patient who is likely to gag?
1. Anterior
2. Premolar
3. Molar
a.
1, 2, 3
b.
2, 1, 3
c.
2, 3, 1
d.
3, 1, 2
5. Which of the following could you do to prevent stimulating your patient’s gag reflex?
a.
Slide the receptor along his palate.
b.
Slowly place the receptor in his mouth to avoid stimulating his gag reflex.
c.
Let the patient get used to each receptor placement, and wait 20 seconds before
exposing the receptor.
d.
Put your finger on the tissue where the receptor will be placed to demonstrate the
receptor placement.
6. Your patient warned you about her gag reflex. She said that no one has ever been able to take
dental images on her. She started gagging on the maxillary anterior images. You have tried
several things but have not had any luck. You tried topical anesthetic on the soft palate, salt on
her tongue, and having her lift her foot. What should you do?
a.
Inject a local anesthetic on her patient’s throat and try again.
b.
Skip the images.
c.
Switch to a different type of receptor (film, PSP, or sensor).
d.
Take a panoramic image to gather diagnostic information.
7. You have just placed the receptor to expose the maxillary right molar and your patient has
started gagging. What should you do?
a.
Keep the receptor in her mouth, tell her to hang on, and expose the receptor.
b.
Keep the receptor in her mouth to acclimate her to the receptor. Then remove it
and try again.
c.
Take the receptor out of your patient’s mouth as quickly as possible.
d.
Have the patient remove the receptor.
8. What can you do to reduce the risk of a gag reflex?
a.
Help the patient focus on not gagging.
b.
Discuss with your patient ways to prevent gagging.
c.
Have your patient hold her breath.
d.
Give your patient a cup of ice water to drink to try to reduce tactile stimuli.
9. Which of the following suggestions are intended to help reduce the gag reflex?
a.
Instructing the patient to breathe rapidly through the nose
b.
Asking the patient to suspend an arm or leg in the air
c.
Placing a small amount of baking soda on the tip of the tongue
d.
Asking the patient to perform jumping jacks for 5 minutes in the treatment room
10. When taking images on a patient with a hearing disability, you should wear your mask
because of infection control guidelines.
a.
Both parts of the statement are true.
b.
Both parts of the statement are false.
c.
The first part of the statement is true; the second part of the statement is false.
d.
The first part of the statement is false; the second part of the statement is true.
11. If a person is blind or visually impaired, the dental radiographer must
a.
communicate using clear visual explanations.
b.
communicate using clear verbal explanations.
c.
not explain each procedure before performing it.
d.
gesture to another person in the presence of a person who is blind.
12. A developmental disability is a substantial impairment of mental or physical functioning that
occurs before age ____ years and is of indefinite duration.
a.
12
b.
18
c.
19
d.
22
13. In treating children with a primary or transitional dentition, the bisecting technique is
preferred, because the small size of the mouth precludes the placement of a receptor beyond
the apical regions of the teeth.
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.
14. ____________ periapical images can be used to examine the edentulous arches.
a.
Eight
b.
Twelve
c.
Fourteen
d.
Eighteen
15. A size ____ receptor is typically used for the edentulous examination.
a.
0
b.
1
c.
2
d.
4
16. For a periapical examination in an edentulous patient, the receptor should be positioned so
that approximately ____________ of it extends beyond the edentulous ridge.
a.
one eighth
b.
one quarter
c.
one third
d.
one half
17. Your patient is edentulous and has very little alveolar ridge remaining. Which technique
would you use for a periapical examination on your patient?
a.
Bisecting
b.
Paralleling
c.
Occlusal
d.
Interproximal
18. The mixed occlusal and periapical examination on an edentulous patient consists of _______
size 4 receptors and ________ size 2 receptors.
a.
two; four
b.
two; two
c.
four; four
d.
four; two
19. When preparing your patient for dental images, you should ask your patient if she gags,
because if she does, you need to do some additional preparation prior to taking the images on
her.
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.