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ARDMS SPI EXAM / ARDMS SPI LATEST EXAM 2026
VERSION B ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS |GUARANTEED PASS
1. A sonographer is evaluating a superficial tendon with a high-frequency linear
transducer. Compared with a lower-frequency transducer, the higher-frequency
transducer primarily provides which advantage?
A. Greater penetration with reduced attenuation
B. Improved axial resolution with reduced penetration
C. Increased frame rate because wavelength is longer
D. Greater Doppler shift because the pulse duration is longer
Answer: B
2. Which change would most directly improve axial resolution during a
sonographic examination?
A. Increasing imaging depth
B. Increasing pulse repetition period
C. Decreasing spatial pulse length
D. Increasing the number of focal zones
Answer: C
3. A sonographer places the focal zone at the level of a structure of interest. The
primary purpose of this adjustment is to improve:
A. Temporal resolution
B. Lateral resolution
C. Axial resolution
D. Contrast resolution
Answer: B
4. A Doppler examination of a vessel produces an inaccurate velocity because the
Doppler angle is substantially greater than 60°. Which adjustment is most
appropriate?
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A. Increase the wall filter
B. Increase persistence
C. Correct the Doppler angle toward 45–60°
D. Increase the dynamic range
Answer: C
5. A sonographer needs to increase the maximum imaging depth while maintaining
the ability to detect returning echoes. Which change is most appropriate?
A. Increase PRF
B. Decrease PRF
C. Increase frame rate
D. Decrease pulse duration
Answer: B
6. Which relationship between frequency and wavelength is correct when sound
travels through the same medium?
A. Frequency and wavelength are directly proportional
B. Frequency increases as wavelength increases
C. Frequency and wavelength are inversely proportional
D. Wavelength is independent of frequency
Answer: C
7. A sonographer increases overall gain and observes that both the blood pool and
vessel wall become excessively bright. Which control should be adjusted first?
A. Overall gain
B. PRF
C. Output power
D. Wall filter
Answer: A
8. The primary function of time-gain compensation (TGC) is to:
A. Increase transmitted frequency with depth
B. Compensate for attenuation at different imaging depths
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C. Increase Doppler frequency shift
D. Eliminate refraction artifacts
Answer: B
9. A sonographer is imaging a rapidly moving cardiac structure and needs to
improve temporal resolution. Which adjustment would be most appropriate?
A. Increase sector width
B. Increase imaging depth
C. Decrease sector width
D. Add multiple focal zones
Answer: C
10. Which combination would generally produce the highest frame rate?
A. Increased depth, wide sector, multiple focal zones
B. Decreased depth, narrow sector, single focal zone
C. Increased depth, narrow sector, multiple focal zones
D. Decreased depth, wide sector, multiple focal zones
Answer: B
11. A spectral Doppler waveform demonstrates aliasing. Which adjustment is most
appropriate when technically feasible?
A. Decrease the PRF/scale
B. Increase the PRF/scale
C. Increase persistence
D. Increase the wall filter only
Answer: B
12. A sonographer increases the wall filter substantially while examining a vessel
with very slow flow. What is the most likely consequence?
A. Improved visualization of slow flow
B. Elimination of all aliasing
C. Loss of low-velocity Doppler signals
D. Increased penetration
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Answer: C
13. Which change would increase the Doppler frequency shift when all other
variables remain constant?
A. Decreasing transmit frequency
B. Decreasing blood velocity
C. Increasing blood velocity
D. Increasing the Doppler angle toward 90°
Answer: C
14. A sonographer wants to evaluate blood flow within a specific region of a vessel
using pulsed-wave Doppler. Which control determines the location and size of the
sampled region?
A. Wall filter
B. Sample gate
C. Dynamic range
D. Persistence
Answer: B
15. Which artifact occurs when a strong reflector produces multiple equally spaced
echoes that appear deeper than the actual reflector?
A. Reverberation
B. Refraction
C. Mirror image
D. Shadowing
Answer: A
16. A structure is displayed deeper than its actual location because the ultrasound
system assumes that sound travels at approximately 1540 m/s, but the sound travels
faster through the actual medium. This is primarily an example of:
A. Speed error
B. Attenuation
C. Side-lobe artifact
D. Range ambiguity
ARDMS SPI EXAM / ARDMS SPI LATEST EXAM 2026
VERSION B ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS |GUARANTEED PASS
1. A sonographer is evaluating a superficial tendon with a high-frequency linear
transducer. Compared with a lower-frequency transducer, the higher-frequency
transducer primarily provides which advantage?
A. Greater penetration with reduced attenuation
B. Improved axial resolution with reduced penetration
C. Increased frame rate because wavelength is longer
D. Greater Doppler shift because the pulse duration is longer
Answer: B
2. Which change would most directly improve axial resolution during a
sonographic examination?
A. Increasing imaging depth
B. Increasing pulse repetition period
C. Decreasing spatial pulse length
D. Increasing the number of focal zones
Answer: C
3. A sonographer places the focal zone at the level of a structure of interest. The
primary purpose of this adjustment is to improve:
A. Temporal resolution
B. Lateral resolution
C. Axial resolution
D. Contrast resolution
Answer: B
4. A Doppler examination of a vessel produces an inaccurate velocity because the
Doppler angle is substantially greater than 60°. Which adjustment is most
appropriate?
,2|Page
A. Increase the wall filter
B. Increase persistence
C. Correct the Doppler angle toward 45–60°
D. Increase the dynamic range
Answer: C
5. A sonographer needs to increase the maximum imaging depth while maintaining
the ability to detect returning echoes. Which change is most appropriate?
A. Increase PRF
B. Decrease PRF
C. Increase frame rate
D. Decrease pulse duration
Answer: B
6. Which relationship between frequency and wavelength is correct when sound
travels through the same medium?
A. Frequency and wavelength are directly proportional
B. Frequency increases as wavelength increases
C. Frequency and wavelength are inversely proportional
D. Wavelength is independent of frequency
Answer: C
7. A sonographer increases overall gain and observes that both the blood pool and
vessel wall become excessively bright. Which control should be adjusted first?
A. Overall gain
B. PRF
C. Output power
D. Wall filter
Answer: A
8. The primary function of time-gain compensation (TGC) is to:
A. Increase transmitted frequency with depth
B. Compensate for attenuation at different imaging depths
,3|Page
C. Increase Doppler frequency shift
D. Eliminate refraction artifacts
Answer: B
9. A sonographer is imaging a rapidly moving cardiac structure and needs to
improve temporal resolution. Which adjustment would be most appropriate?
A. Increase sector width
B. Increase imaging depth
C. Decrease sector width
D. Add multiple focal zones
Answer: C
10. Which combination would generally produce the highest frame rate?
A. Increased depth, wide sector, multiple focal zones
B. Decreased depth, narrow sector, single focal zone
C. Increased depth, narrow sector, multiple focal zones
D. Decreased depth, wide sector, multiple focal zones
Answer: B
11. A spectral Doppler waveform demonstrates aliasing. Which adjustment is most
appropriate when technically feasible?
A. Decrease the PRF/scale
B. Increase the PRF/scale
C. Increase persistence
D. Increase the wall filter only
Answer: B
12. A sonographer increases the wall filter substantially while examining a vessel
with very slow flow. What is the most likely consequence?
A. Improved visualization of slow flow
B. Elimination of all aliasing
C. Loss of low-velocity Doppler signals
D. Increased penetration
, 4|Page
Answer: C
13. Which change would increase the Doppler frequency shift when all other
variables remain constant?
A. Decreasing transmit frequency
B. Decreasing blood velocity
C. Increasing blood velocity
D. Increasing the Doppler angle toward 90°
Answer: C
14. A sonographer wants to evaluate blood flow within a specific region of a vessel
using pulsed-wave Doppler. Which control determines the location and size of the
sampled region?
A. Wall filter
B. Sample gate
C. Dynamic range
D. Persistence
Answer: B
15. Which artifact occurs when a strong reflector produces multiple equally spaced
echoes that appear deeper than the actual reflector?
A. Reverberation
B. Refraction
C. Mirror image
D. Shadowing
Answer: A
16. A structure is displayed deeper than its actual location because the ultrasound
system assumes that sound travels at approximately 1540 m/s, but the sound travels
faster through the actual medium. This is primarily an example of:
A. Speed error
B. Attenuation
C. Side-lobe artifact
D. Range ambiguity
