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ARDMS SPI MOCKS PRACTICE EXAM WITH COMPLETE QUESTIONS AND CORRECT ANSWERS RATED A+
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ARDMS SPI MOCKS PRACTICE EXAM WITH COMPLETE QUESTIONS AND CORRECT ANSWERS RATED A+
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ARDMS SPI MOCKS PRACTICE EXAM WITHCOMPLETE QUESTIONS AND CORRECT
ANSWERS RATED A+
Which change would minimize the artifact observed in this image,
assuming the pulse repetition frequency is at its maximum
limit?A.adjust the sweep speed
B.adjust the baseline
C.increasing dynamic range
D.increasing the transmitted frequency Correct Answer B.adjust
the baseline
How is lateral resolution determined for a pulsed-echo system
using a tissue-mimicking test object?
A.by observing spaces between reflectors perpendicular to the
beam
B.by observing spaces between reflectors along the beam path
C.by observing position of deepest visible reflector along the
beam path
D.by observing position of deepest visible reflector perpendicular
to the beam path Correct Answer A.by observing spaces
between reflectors perpendicular to the beam
What is dynamic aperture?
A.aperture that varies with transmit frequency
B.aperture that decreases as a function of time
C.aperture that increases with increasing focal length
D.aperture that changes as a function of frame rate Correct
Answer C.aperture that increases with increasing focal length
What is the advantage of using pulsed-wave doppler versus
continuous-wave doppler?
A.allows measurement of higher velocities
,B.increases range ambiguity
C.reduces the potential for aliasing
D.provides depth specificity Correct Answer D.provides depth
specificity
What is the doppler shift frequency?
A. recieved ultrasound frequency multiplied by the transmitted
ultrasound frequency
B.difference between the transmitted ultrasound frequency and
the received ultrasound frequency
C.sum of the transmitted and received ultrasound frequencies
D.ratio of the transmitted ultrasound frequency to the received
ultrasound frequency Correct Answer B.difference between the
transmitted ultrasound frequency and the received ultrasound
frequency
Which parameter is target group C evaluating based on the
image?
A.dead zone
B.dynamic range
C.axial resolution
D.Horizontal distance accuracy Correct Answer D.Horizontal
distance accuracy
An increase in which parameter will improve the accuracy of
velocity measurements with autocorrelation?
A.color field of view
B.packet size
C.wall filtering
D.transmitted frequency Correct Answer B.packet size
Which artifact is indicated by the arrows in this image?
A.shadow produced by the diaphragm
B.acoustic enhancement
C.comet tail
, D.mirror image Correct Answer C.comet tail
Which control improves the effects of attenuation?
A.dynamic range
B.pulse inversion
C.multiple focal zones
D.time gain compensation Correct Answer D.time gain
compensation
What term describes blood flow changes in response to
respiration?
A.phasic
B.parabolic
C.spontaneous
D.pulsatile Correct Answer A.phasic
What is the potential effect of increasing the pulse repetition
frequency(PRF)?
A.Depth ambiguity
B.Decreased frame rate
C.Poor spatial resolution
D.Decreased penetration Correct Answer D.Decreased
penetration
The center frequency of a transducer depends primarily upon
which characteristics of the crystal?
A.width
B.length
C.spacing
D.thickness Correct Answer D.thickness
What does coded excitation improve in addition to penetration?
A.lateral resolution
B.signal-to-noise ratio
C.frame rate
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