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