TEST BANK For Dental Radiography:
n9 n9 n9 n9 n9
Principles and Techniques 6th Edition
n9 n9 n9 n9 n9
by Joen Iannucci & Laura Jansen Howerton
n9 n9 n9 n9 n9 n9 n9
Chapters 1 - 35 | Complete
n9 n9 n9 n9 n9 n9
,Chapter 01: Radiation History
n9 n9 n9
Iannucci: Dental Radiography, 6th Edition
n9 n9 n9 n9
MULTIPLE CHOICE n9
1. Radiation is defined as n9 n9 n9
a. a form of energy carried by waves or streams of particles.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
b. a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 imageshadows on a receptor. n9 n9 n9 n9
c. a high-energy radiation produced by the collision of a beam of electrons
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 with ametal target in an x-ray tube.
n9 n9 n9 n9 n9 n9 n9
d. a branch of medicine that deals with the use of x-rays.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
ANSWER: A n9
Radiation is a form of energy carried by waves or streams of particles. An x-ray is a
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
beam ofenergy that has the power to penetrate substances and record image shadows
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
on a receptor.
n9 n9 n9
X-radiation is a high-energy radiation produced by the collision of a beam of electrons
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
with ametal target in an x-ray tube. Radiology is a branch of medicine that deals with
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
the use of
n9 n9 n9
x-rays.
DIF: Recall REF: Page 2 OBJ: 1 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
radiophysicsand radiobiology
n9 n9 n9
2. A radiograph is defined as
n9 n9 n9 n9
a. a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 imageshadows on a receptor. n9 n9 n9 n9
b. a picture on film produced by the passage of x-rays through an object or body.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
c. the art and science of making radiographs by the exposure of an image
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
receptor tox-rays.
n9 n9 n9
d. a form of energy carried by waves or a stream of particles.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
ANSWER: B n9
An x-ray is a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
image shadows on a receptor. A radiograph is a picture on film produced by the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
passage of x-rays through an object or body. Radiography is the art and science of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
making dental images by theexposure of a receptor to x-rays. Radiation is a form of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n 9 n9 n9 n9 n9
energy carried by waves or streams of particles.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Comprehension REF: Page 2 OBJ: n9 n9 n9 n9
1TOP: CDA, RHS, III.B.2. Describe the characteristics of x-
n9 9
n n 9 n9 n9 n9 n9 n9 n9 n9
radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
radiophysicsand radiobiology
n9 n9 n9
3. Your patient asked you why dental images are important. Which of the following
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
is thecorrect response?
n9 n9 n9 n9
a. An oral examination with dental images limits the practitioner to what is
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
seenclinically.
n9 n9
b. All dental diseases and conditions produce clinical signs and symptoms.
n9 n9 n9 n9 n9 n9 n9 n9 n9
, c. Dental images are not a necessary component of comprehensive patient care.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
d. Many dental diseases are typically discovered only through the use of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 dentalimages. n9
ANSWER: D n9
An oral examination without dental images limits the practitioner to what is seen
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
clinically. Many dental diseases and conditions produce no clinical signs and symptoms.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
Dental imagesare a necessary component of comprehensive patient care. Many dental
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
diseases are typically discovered only through the use of dental images.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
DIF: Application REF: Page 2 OBJ: 2 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
4. The x-ray was discovered by
n9 n9 n9 n9
a. Heinrich Geissler n9
b. Wilhelm Roentgen n9
c. Johann Hittorf n9
d. William Crookes n9
ANSWER: B n9
Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
n9 n9 n9 n9 n9 n9 n9 n9 n 9 n9 n9 n9
x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
from the negative electrode of a vacuum tube traveled in straight lines, produced heat,
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
and resultedin a greenish fluorescence. William Crookes discovered in the late 1870s
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
that cathode rays were streams of charged particles.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Recall REF: Page 2 OBJ: 4 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
5. Who exposed the first dental radiograph in the United States using a live person?
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Otto Walkoff n9
b. Wilhelm Roentgen n9
c. Edmund Kells n9
d. Weston Price n9
ANSWER: n 9 C
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
Roentgenwas a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
first dental radiograph in the United States using a live person. Price introduced the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
bisecting technique in 1904.
n9 n9 n9 n9
DIF: Recall REF: Page 4 OBJ: 5 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
6. Current fast radiographic film requires
n9 n9 n9 n9 % less exposure time than the initial
n9 n9 n9 n9 n9 n9
exposuretimes used in 1920.
n9 n9 n9 n9 n9
a. 33
b. 98
c. 73
, d. 2
ANSWER: D n9
Current fast radiographic film requires 98% less exposure time than the initial exposure
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
timesused in 1920.
n9 n9 n9 n9
DIF: Comprehension REF: Page 5 OBJ: n9 n9 n9 n9
6TOP: CDA, RHS, III.B.2. Describe the characteristics of x-
n9 9
n n 9 n9 n9 n9 n9 n9 n9 n9
radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
7. Who modified the paralleling technique with the introduction of the long-cone technique?
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
a. C. Edmund Kells n9 n9
b. Franklin W. McCormack n9 n9
c. F. Gordon Fitzgerald
n9 n9
d. Howard Riley Raper n9 n9
ANSWER: C n9
C. Edmund Kells introduced the paralleling technique in 1896. Franklin W.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
McCormack reintroduced the paralleling technique in 1920. F. Gordon Fitzgerald
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
modified the parallelingtechnique with the introduction of the long-cone technique.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
This is the technique currently used. Howard Riley Raper modified the bisecting
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
technique and introduced the bite-wing technique in 1925.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Recall REF: Page 4 OBJ: 7 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
8. Which of the following is an advantage of digital imaging?
n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Increased patient radiation exposure n9 n9 n9
b. Increased patient comfort n9 n9
c. Increased speed for viewing images n9 n9 n9 n9
d. Increased chemical usage n9 n9
ANSWER: C n9
Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to x-
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
rays than film. Digital sensors are rigid and bulky, causing decreased patient comfort.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
The image from digital sensors is uploaded directly to the computer and monitor
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
without the need for chemical processing. This allows for immediate interpretation and
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
evaluation. The image fromdigital sensors is uploaded directly to the computer and
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
monitor without the need for chemicalprocessing.
n9 n9 n9 n9 n9 n9 9
n
DIF: Comprehension REF: Page 6 OBJ: 7 n9 n9 n9 n9 n9
TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of digital
n9 n 9 n9 n9 n9 n9 n9 n9 n9
radiography
n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
9. Which discovery was the precursor to the discovery of x-rays?
n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Beta particles n9
b. Alpha particles n9
c. Cathode rays n9
d. Radioactive materials n9
ANSWER: C n9
n9 n9 n9 n9 n9
Principles and Techniques 6th Edition
n9 n9 n9 n9 n9
by Joen Iannucci & Laura Jansen Howerton
n9 n9 n9 n9 n9 n9 n9
Chapters 1 - 35 | Complete
n9 n9 n9 n9 n9 n9
,Chapter 01: Radiation History
n9 n9 n9
Iannucci: Dental Radiography, 6th Edition
n9 n9 n9 n9
MULTIPLE CHOICE n9
1. Radiation is defined as n9 n9 n9
a. a form of energy carried by waves or streams of particles.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
b. a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 imageshadows on a receptor. n9 n9 n9 n9
c. a high-energy radiation produced by the collision of a beam of electrons
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 with ametal target in an x-ray tube.
n9 n9 n9 n9 n9 n9 n9
d. a branch of medicine that deals with the use of x-rays.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
ANSWER: A n9
Radiation is a form of energy carried by waves or streams of particles. An x-ray is a
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
beam ofenergy that has the power to penetrate substances and record image shadows
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
on a receptor.
n9 n9 n9
X-radiation is a high-energy radiation produced by the collision of a beam of electrons
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
with ametal target in an x-ray tube. Radiology is a branch of medicine that deals with
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
the use of
n9 n9 n9
x-rays.
DIF: Recall REF: Page 2 OBJ: 1 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
radiophysicsand radiobiology
n9 n9 n9
2. A radiograph is defined as
n9 n9 n9 n9
a. a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 imageshadows on a receptor. n9 n9 n9 n9
b. a picture on film produced by the passage of x-rays through an object or body.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
c. the art and science of making radiographs by the exposure of an image
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
receptor tox-rays.
n9 n9 n9
d. a form of energy carried by waves or a stream of particles.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
ANSWER: B n9
An x-ray is a beam of energy that has the power to penetrate substances and record
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
image shadows on a receptor. A radiograph is a picture on film produced by the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
passage of x-rays through an object or body. Radiography is the art and science of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
making dental images by theexposure of a receptor to x-rays. Radiation is a form of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n 9 n9 n9 n9 n9
energy carried by waves or streams of particles.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Comprehension REF: Page 2 OBJ: n9 n9 n9 n9
1TOP: CDA, RHS, III.B.2. Describe the characteristics of x-
n9 9
n n 9 n9 n9 n9 n9 n9 n9 n9
radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
radiophysicsand radiobiology
n9 n9 n9
3. Your patient asked you why dental images are important. Which of the following
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
is thecorrect response?
n9 n9 n9 n9
a. An oral examination with dental images limits the practitioner to what is
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
seenclinically.
n9 n9
b. All dental diseases and conditions produce clinical signs and symptoms.
n9 n9 n9 n9 n9 n9 n9 n9 n9
, c. Dental images are not a necessary component of comprehensive patient care.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
d. Many dental diseases are typically discovered only through the use of
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
n9 dentalimages. n9
ANSWER: D n9
An oral examination without dental images limits the practitioner to what is seen
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
clinically. Many dental diseases and conditions produce no clinical signs and symptoms.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
Dental imagesare a necessary component of comprehensive patient care. Many dental
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
diseases are typically discovered only through the use of dental images.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
DIF: Application REF: Page 2 OBJ: 2 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
4. The x-ray was discovered by
n9 n9 n9 n9
a. Heinrich Geissler n9
b. Wilhelm Roentgen n9
c. Johann Hittorf n9
d. William Crookes n9
ANSWER: B n9
Heinrich Geissler built the first vacuum tube in 1838. Wilhelm Roentgen discovered the
n9 n9 n9 n9 n9 n9 n9 n9 n 9 n9 n9 n9
x-ray on November 8, 1895. Johann Hittorf observed in 1870 that discharges emitted
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
from the negative electrode of a vacuum tube traveled in straight lines, produced heat,
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
and resultedin a greenish fluorescence. William Crookes discovered in the late 1870s
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
that cathode rays were streams of charged particles.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Recall REF: Page 2 OBJ: 4 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
5. Who exposed the first dental radiograph in the United States using a live person?
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Otto Walkoff n9
b. Wilhelm Roentgen n9
c. Edmund Kells n9
d. Weston Price n9
ANSWER: n 9 C
Otto Walkoff was a German dentist who made the first dental radiograph. Wilhelm
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
Roentgenwas a Bavarian physicist who discovered the x-ray. Edmund Kells exposed the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
first dental radiograph in the United States using a live person. Price introduced the
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
bisecting technique in 1904.
n9 n9 n9 n9
DIF: Recall REF: Page 4 OBJ: 5 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
6. Current fast radiographic film requires
n9 n9 n9 n9 % less exposure time than the initial
n9 n9 n9 n9 n9 n9
exposuretimes used in 1920.
n9 n9 n9 n9 n9
a. 33
b. 98
c. 73
, d. 2
ANSWER: D n9
Current fast radiographic film requires 98% less exposure time than the initial exposure
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
timesused in 1920.
n9 n9 n9 n9
DIF: Comprehension REF: Page 5 OBJ: n9 n9 n9 n9
6TOP: CDA, RHS, III.B.2. Describe the characteristics of x-
n9 9
n n 9 n9 n9 n9 n9 n9 n9 n9
radiation
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
7. Who modified the paralleling technique with the introduction of the long-cone technique?
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
a. C. Edmund Kells n9 n9
b. Franklin W. McCormack n9 n9
c. F. Gordon Fitzgerald
n9 n9
d. Howard Riley Raper n9 n9
ANSWER: C n9
C. Edmund Kells introduced the paralleling technique in 1896. Franklin W.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
McCormack reintroduced the paralleling technique in 1920. F. Gordon Fitzgerald
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
modified the parallelingtechnique with the introduction of the long-cone technique.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
This is the technique currently used. Howard Riley Raper modified the bisecting
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
technique and introduced the bite-wing technique in 1925.
n9 n9 n9 n9 n9 n9 n9 n9
DIF: Recall REF: Page 4 OBJ: 7 n9 n9 n9 n9 n 9
TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation
n 9 n9 n9 n9 n9 n9 n9 n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
8. Which of the following is an advantage of digital imaging?
n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Increased patient radiation exposure n9 n9 n9
b. Increased patient comfort n9 n9
c. Increased speed for viewing images n9 n9 n9 n9
d. Increased chemical usage n9 n9
ANSWER: C n9
Patient exposure is reduced with digital imaging. Digital sensors are more sensitive to x-
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
rays than film. Digital sensors are rigid and bulky, causing decreased patient comfort.
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
The image from digital sensors is uploaded directly to the computer and monitor
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
without the need for chemical processing. This allows for immediate interpretation and
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
evaluation. The image fromdigital sensors is uploaded directly to the computer and
n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9 n9
monitor without the need for chemicalprocessing.
n9 n9 n9 n9 n9 n9 9
n
DIF: Comprehension REF: Page 6 OBJ: 7 n9 n9 n9 n9 n9
TOP: CDA, RHS, I.B.2. Demonstrate basic knowledge of digital
n9 n 9 n9 n9 n9 n9 n9 n9 n9
radiography
n9
MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.5 General
n 9 n9 n9 n9 n9 n9 n9 n9 n9 n9
9. Which discovery was the precursor to the discovery of x-rays?
n9 n9 n9 n9 n9 n9 n9 n9 n9
a. Beta particles n9
b. Alpha particles n9
c. Cathode rays n9
d. Radioactive materials n9
ANSWER: C n9
