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