Diagnostic Sonography
Chapters 1-4 Exam Test
Bank Complete Questions
and Answers
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Page 1 of 31 Diagnostic Sonography Chapters 1-4 Exam Test Bank Complete Questions and Answers.pdf
,Diagnostic Sonography Ch 1-4 exam 2 2026-03-27
Terms in this set (158)
Historically, the development of ultrasound sonar in world war II
began shortly after ______.
The early application of obstetric ultrasound was Ian Donald
initiated by who?
Visualization of the cardiac structures in the heart Hertz and Elder
was discovered by ___________.
Which of the following statements about the role sonographers perform ultrasound studies and gather diagnostic data
of sonographers is false? a) Sonographers must independent of the physician.
have a technical aptitude, b) sonographers must
be able to communicate on different levels, c)
sonographer must possess intellectual curiosity,
d) sonographers perform ultrasound studies and
gather diagnostic data independent of the
physician.
In soft tissues, the assumed propagation velocity 1540
is ______ m/s.
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The diagnostic ultrasound uses the frequencies of 1-20 MHz
______.
What defines the correct dynamic range? Ratio of the largest to the smallest signals that an instrument can
respond to without distortion
The device that converts energy from one form transducer
to another is called ______.
The ______ is the product of the velocity of sound in acoustic impedance
a medium and the density of the medium
The angle of reflection is equal to ______. angle of incidence
the best transducer to image the thyroid gland is 5 (the one with the highest frequency)
______.
The display mode that shows time along the M
horizontal axis and depth along the vertical axis is
______ mode
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Which one of the following statements about the the beam should be perpendicular to the flow
doppler principle is false? a) the beam should be
perpendicular to the flow, b) doppler refers to a
change in frequency in which the motion of
laminar flow is detected within a vascular
structure, c) the doppler shift is directly
proportional to the velocity of the red cell, d)if
the 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.
The fresnel zone is also called the ______ ______. near zone
The higher the transducer frequency, the ______ the shorter
wavelength
An example of subjective data in a health history? the patient states he has a back pain
a) the physician notes bruising on the middle
back, b) the patient states he has a back pain, c)
x-ray examinations show calcification in the
pancreatic area, d) mri shows calcification in the
pancreas
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