MASSACHUSETTS ULTRASOUND /DIAGNOSTIC
MEDICAL SONOGRAPHER LICENSURE QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
Q&A 2026 |INSTANT DOWNLOAD PDF
1
Which ultrasound transducer frequency provides the greatest
penetration for abdominal imaging?
A. 2–3 MHz
B. 5 MHz
C. 7.5 MHz
D. 10 MHz
Rationale: Lower-frequency ultrasound waves penetrate
deeper tissues but produce lower resolution images. High-
frequency waves provide better resolution but less penetration.
Correct Answer: A. 2–3 MHz
2
What ultrasound artifact causes structures behind a highly
attenuating object to appear darker?
A. Enhancement
B. Reverberation
C. Acoustic shadowing
D. Refraction
,Rationale: Dense structures such as stones absorb or reflect
sound waves, preventing sound from reaching deeper tissues,
producing a dark shadow behind them.
Correct Answer: C. Acoustic shadowing
3
Which ultrasound mode is primarily used to measure motion
of cardiac structures?
A. A-mode
B. B-mode
C. M-mode
D. Doppler mode
Rationale: M-mode (motion mode) displays motion of
structures along a single scan line over time, commonly used in
echocardiography.
Correct Answer: C. M-mode
4
Which structure is typically visualized during a routine right
upper quadrant ultrasound?
A. Spleen
B. Gallbladder
,C. Pancreatic tail
D. Urinary bladder
Rationale: A right upper quadrant scan evaluates the liver,
gallbladder, biliary ducts, pancreas head, and right kidney.
Correct Answer: B. Gallbladder
5
The Doppler effect in ultrasound refers to:
A. Reflection of sound waves
B. Change in frequency caused by motion
C. Absorption of ultrasound energy
D. Bending of ultrasound waves
Rationale: Doppler ultrasound measures the change in
frequency of sound waves reflected by moving blood cells.
Correct Answer: B. Change in frequency caused by motion
6
Which ultrasound artifact produces multiple equally spaced
echoes due to sound bouncing between two reflectors?
A. Mirror image
B. Reverberation
C. Enhancement
D. Side lobe
, Rationale: Reverberation occurs when sound waves repeatedly
reflect between two strong reflectors, producing multiple lines
on the image.
Correct Answer: B. Reverberation
7
Which gel is applied during ultrasound scanning primarily to:
A. Reduce patient discomfort
B. Increase sound absorption
C. Eliminate air between transducer and skin
D. Increase frequency
Rationale: Ultrasound gel removes air between the probe and
skin to allow efficient transmission of sound waves.
Correct Answer: C. Eliminate air between transducer and skin
8
What is the typical normal thickness of the gallbladder wall in
adults?
A. < 3 mm
B. < 5 mm
C. < 7 mm
D. < 10 mm
MEDICAL SONOGRAPHER LICENSURE QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
Q&A 2026 |INSTANT DOWNLOAD PDF
1
Which ultrasound transducer frequency provides the greatest
penetration for abdominal imaging?
A. 2–3 MHz
B. 5 MHz
C. 7.5 MHz
D. 10 MHz
Rationale: Lower-frequency ultrasound waves penetrate
deeper tissues but produce lower resolution images. High-
frequency waves provide better resolution but less penetration.
Correct Answer: A. 2–3 MHz
2
What ultrasound artifact causes structures behind a highly
attenuating object to appear darker?
A. Enhancement
B. Reverberation
C. Acoustic shadowing
D. Refraction
,Rationale: Dense structures such as stones absorb or reflect
sound waves, preventing sound from reaching deeper tissues,
producing a dark shadow behind them.
Correct Answer: C. Acoustic shadowing
3
Which ultrasound mode is primarily used to measure motion
of cardiac structures?
A. A-mode
B. B-mode
C. M-mode
D. Doppler mode
Rationale: M-mode (motion mode) displays motion of
structures along a single scan line over time, commonly used in
echocardiography.
Correct Answer: C. M-mode
4
Which structure is typically visualized during a routine right
upper quadrant ultrasound?
A. Spleen
B. Gallbladder
,C. Pancreatic tail
D. Urinary bladder
Rationale: A right upper quadrant scan evaluates the liver,
gallbladder, biliary ducts, pancreas head, and right kidney.
Correct Answer: B. Gallbladder
5
The Doppler effect in ultrasound refers to:
A. Reflection of sound waves
B. Change in frequency caused by motion
C. Absorption of ultrasound energy
D. Bending of ultrasound waves
Rationale: Doppler ultrasound measures the change in
frequency of sound waves reflected by moving blood cells.
Correct Answer: B. Change in frequency caused by motion
6
Which ultrasound artifact produces multiple equally spaced
echoes due to sound bouncing between two reflectors?
A. Mirror image
B. Reverberation
C. Enhancement
D. Side lobe
, Rationale: Reverberation occurs when sound waves repeatedly
reflect between two strong reflectors, producing multiple lines
on the image.
Correct Answer: B. Reverberation
7
Which gel is applied during ultrasound scanning primarily to:
A. Reduce patient discomfort
B. Increase sound absorption
C. Eliminate air between transducer and skin
D. Increase frequency
Rationale: Ultrasound gel removes air between the probe and
skin to allow efficient transmission of sound waves.
Correct Answer: C. Eliminate air between transducer and skin
8
What is the typical normal thickness of the gallbladder wall in
adults?
A. < 3 mm
B. < 5 mm
C. < 7 mm
D. < 10 mm
