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ARDMS SPI EXAM VERSION 1 AND 2 2025/2026
COMPLETE ALL QUESTIONS AND 100% CORRECT
DETAILED ANSWERS WITH RATIONALES |UPDATED
& GRADED A+
12. Which technology is used to map tissue stiffness?
A) Elastography
B) Volume rendering
C) Volumetric acquisition
D) Myocardial motion - ANSWER-A) 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
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C) There will be a negative shift
D) There will be a positive shift - ANSWER-B) 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 - ANSWER-B) Low
resistance vessels
15. Which feature of the pulse wave will be seen where
there is laminar flow?
A) Lower baseline
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B) Spectral broadening
C) Abnormal flow
D) Spectral window - ANSWER-D) 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 - ANSWER-D) 4 kHz
17. Which action will increase sensitivity to slow flow?
A) Increase packet size
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B) Decrease scale
C) Decrease wall filter
D) All of the listed options - ANSWER-D) 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 - ANSWER-D) Doppler shift
20. Which adjustments will optimize visualization of low
velocity flow in a vessel?
A) Increase frequency and decrease wall filter
ARDMS SPI EXAM VERSION 1 AND 2 2025/2026
COMPLETE ALL QUESTIONS AND 100% CORRECT
DETAILED ANSWERS WITH RATIONALES |UPDATED
& GRADED A+
12. Which technology is used to map tissue stiffness?
A) Elastography
B) Volume rendering
C) Volumetric acquisition
D) Myocardial motion - ANSWER-A) 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
,2|Page
C) There will be a negative shift
D) There will be a positive shift - ANSWER-B) 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 - ANSWER-B) Low
resistance vessels
15. Which feature of the pulse wave will be seen where
there is laminar flow?
A) Lower baseline
,3|Page
B) Spectral broadening
C) Abnormal flow
D) Spectral window - ANSWER-D) 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 - ANSWER-D) 4 kHz
17. Which action will increase sensitivity to slow flow?
A) Increase packet size
, 4|Page
B) Decrease scale
C) Decrease wall filter
D) All of the listed options - ANSWER-D) 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 - ANSWER-D) Doppler shift
20. Which adjustments will optimize visualization of low
velocity flow in a vessel?
A) Increase frequency and decrease wall filter
