Test Bank for Textbook of Diagnostic Sonography, 9th Edition Volume 1 by Sandra L. Hagen-Ansert. Volume one all chapters test bank included Chap 1 -30
VOLUME ONE Part I: Foundations of Sonography 1. Foundations of Clinical Sonography 2. Essentials of Patient Care for the Sonographer 3. Ergonomic...
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Voorbeeld van de inhoud
Chapter 01.bnk
MULTIPLE CHOICE
1. Historically, the development of ultrasound began shortly after:
a. radio communication in World War I.
b. sonar in World War II.
c. nuclear testing in World War II.
d. the launching of Sputnik.
ANS: b
World War II brought sonar equipment to the forefront for defense
purposes. Ultrasound was influenced by the success of sonar equipment.
PTS: 1
OBJ: Detail a timeline for pioneers in the advancement of medical diagnostic
ultrasound.
TOP: Historical overview of sound theory and medical ultrasound
2. The early applications of obstetric ultrasound were initiated by:
a. Joseph Holmes and Douglas Howry.
b. Ian Donald and Tom Brown.
c. Hellmuth Hertz and Inge Edler.
d. William Fry and Russell Meyers.
ANS: b
The early obstetric compound scanner was built by Tom Brown and Dr.
Ian Donald in Scotland in 1957.
PTS: 1
OBJ: Detail a timeline for pioneers in the advancement of medical diagnostic
ultrasound.
TOP: Historical overview of sound theory and medical ultrasound
3. Visualization of the cardiac structures in the heart was discovered by:
a. Joseph Holmes.
b. Ian Donald.
c. Hertz and Edler.
d. George Ludwig.
,ANS: c
In 1954, echocardiographic techniques were developed in Sweden by
Drs. C.H. Hertz and I. Edler.
PTS: 1
OBJ: Detail a timeline for pioneers in the advancement of medical diagnostic
ultrasound.
TOP: Historical overview of sound theory and medical ultrasound
4. Which one of the following statements about the role of sonographers
is false?
a. Sonographers perform ultrasound studies and gather diagnostic data
independent of the physician.
b. Sonographers must possess intellectual curiosity and perseverance.
c. Sonographers must have a technical aptitude.
d. Sonographers must be able to communicate on different levels.
ANS: a
A sonographer performs ultrasound studies gathering diagnostic data
under both the direct and the indirect supervision of a physician. They
also must assess clinical history and symptoms, interpret laboratory
values, and understand other diagnostic examinations.
PTS: 1
OBJ: Describe the role of the sonographer.
TOP: Role of the sonographer
5.In soft tissues, the assumed propagation velocity is (in meters per
second):
a. 1320.
b. 1450.
c. 1540.
d. 1650.
ANS: c
In soft tissues, the assumed propagation velocity (speed) is 1540 meters
per second.
PTS: 1
,OBJ: Demonstrate an understanding of the basic principles and terminology
of ultrasound.
TOP: Introduction to basic ultrasound principles – Acoustics
6. Diagnostic ultrasound uses the frequencies of:
a. 10 to 15 kHz.
b. 1 to 20 kHz.
c. 100 to 1000 Hz.
d. 1 to 20 MHz.
ANS: d
Diagnostic application of ultrasound uses frequencies of 1 to 20 million
cycles per second (1 to 20 MHz).
PTS: 1
OBJ: Demonstrate an understanding of the basic principles and terminology
of ultrasound.
TOP: Introduction to basic ultrasound principles – Acoustics
7. The device that converts energy from one form to another is called
the:
a. digitizer.
b. transducer.
c. scan converter.
d. beam former.
ANS: b
Piezoelectric elements (transducers) convert electric energy into
ultrasound energy and vice versa.
PTS: 1
OBJ: Demonstrate an understanding of the basic principles and terminology
of ultrasound.
TOP: Transducer Selection in a Clinical Imaging Practice
8. The angle of reflection is equal to the:
a. acoustic impedance.
b. angle of incidence.
, c. refraction.
d. image resolution.
ANS: b
Angle of reflection is the angle between the reflected sound direction
and a line perpendicular to the media boundary.
PTS: 1
OBJ: Demonstrate an understanding of the basic principles and terminology
of ultrasound.
TOP: Propagation of sound through tissue
9. The display mode that shows time along the horizontal axis and depth
along the vertical axis is:
a. A mode.
b. B mode.
c. M-mode.
d. real-time.
ANS: c
Motion mode (M-mode) displays the depth along the vertical axis versus
the time along the horizontal axis.
PTS: 1
OBJ: Identify ultrasound instruments and discuss their uses.
TOP: Pulse-echo display modes – M-mode
10. Which one of the following statements about the Doppler principle is
false?
a. Doppler refers to a change in frequency in which the motion of
laminar or turbulent flow is detected within a vascular structure.
b. The beam should be perpendicular to the flow.
c. The Doppler shift is directly proportional to the velocity of the red
blood cell.
d. If the red blood cell moves away from the transducer, then the fall in
frequency is directly proportional to the velocity and direction of the red
blood cell movement.
ANS: b
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