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2024 ARDMS - SPI EXAM WITH CORRECT ANSWERS
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2024 ARDMS - SPI EXAM WITHCORRECT ANSWERS
When the direction of the wave propagation is parallel to the particle motion
of the medium, the wave being transmitted is called a:
A) surface wave.
B) longitudinal wave.
C) transverse wave.
D) non-linear sound. - CORRECT-ANSWERSB) longitudinal wave
1. A received frequency that is lower than what was transmitted, indicates
what about the flow?
A) Flow is moving away from the sound source
B) Low velocity
C) Flow is moving towards the sound source
D) High velocity - CORRECT-ANSWERSA) Flow is moving away from the sound
source
2. Increasing the angle of insonation will have what result on the frequency
shift?
A) Decrease
B) Increase
C) Double
D) No change - CORRECT-ANSWERSA) Decrease
3. The interaction between tissue and sound that will likely affect the thermal
index is called:
A) rarefraction
B) refraction
C) absorption
D) specificity - CORRECT-ANSWERSC) absorption
4. Which angle will increase the Doppler shift the most?
A) 180
B) 45
C) 100
D) 90 - CORRECT-ANSWERSA) 180
5. Of the following changes, which will reduce aliasing artifact?
A) Increase transducer frequency
B) Decrease insonation angle
C) Decrease color gain
,D) Increase pulse repetition frequency - CORRECT-ANSWERSD) Increase
pulse repetition frequency
6. If flow is moving through a vessel with uniform diameter in an organized
manner, what is the nature of the flow?
A) Turbulent
B) Laminar
C) Parabolic
D) Plug - CORRECT-ANSWERSB) Laminar
7. Which scenario will result in having no Doppler shift?
A) Flow moving away from the transducer
B) Flow moving towards the transducer
C) No movement
D) High velocity flow - CORRECT-ANSWERSC) No movement
8. The technique used to assign a color to a received Doppler signal is called:
A) autocorrelation
B) ensemble length
C) phase quadrature detection
D) Fourier analysis - CORRECT-ANSWERSA) autocorrelation
9. Altering which setting during a Doppler exam will affect the system frame
rate?
A) Doppler gain
B) High pass filter
C) PRF
D) Frequency - CORRECT-ANSWERSC) PRF
10. Which angle is the maximum for safe wrist extension while scanning?
A) 20 degrees
B) 10 degrees
C) 30 degrees
D) 40 degrees - CORRECT-ANSWERSA) 20 degrees
11. In the 10 mm test object, which of the following system controls cannot
be tested?
A) Dead zone
B) Calipers
C) Dynamic range
D) Axial resolution - CORRECT-ANSWERSC) Dynamic range
12. Which technology is used to map tissue stiffness?
A) Elastography
B) Volume rendering
C) Volumetric acquisition
, D) Myocardial motion - CORRECT-ANSWERSA) Elastography
13. The tech changes the PRF from 6 kHz to 8 kHz, what will happen to the
maximum Doppler shift velocity limit?
A) It will decrease
B) It will increase
C) There will be a negative shift
D) There will be a positive shift - CORRECT-ANSWERSB) It will increase
14. More diastolic flow is visible in which of the following?
A) High pressure vessels
B) Low resistance vessels
C) High resistance vessels
D) Vessels with flow reversal - CORRECT-ANSWERSB) Low resistance vessels
15. Which feature of the pulse wave will be seen where there is laminar flow?
A) Lower baseline
B) Spectral broadening
C) Abnormal flow
D) Spectral window - CORRECT-ANSWERSD) Spectral window
16. A 6 MHz Doppler unit is operating with a PRF set at 8 kHz. What is the
upper velocity limit?
A) 6 kHz
B) 3 kHz
C) 8 kHz
D) 4 kHz - CORRECT-ANSWERSD) 4 kHz
17. Which action will increase sensitivity to slow flow?
A) Increase packet size
B) Decrease scale
C) Decrease wall filter
D) All of the listed options - CORRECT-ANSWERSD) All of the listed options
19. Aliasing will occur if what exceeds the Nyquist limit?
A) Positive flow
B) Doppler angle
C) Velocity
D) Doppler shift - CORRECT-ANSWERSD) Doppler shift
20. Which adjustments will optimize visualization of low velocity flow in a
vessel?
A) Increase frequency and decrease wall filter
B) Increase wall filter and increase frequency
C) Increase angle and decrease packet size
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