SPI Questions and Verified Answers || Graded A+ | 2025|2026
EXAM UPDATE
Distended bladder - Which of the following anatomical structures exhibits the lowest level
of attenuation?
Rib
Sternocleidomastoid muscle
Bowel
Distended bladder
1540 m/s - What is the average speed of sound in soft tissue?
Wavelength - In the following diagram, what does the letter (A) represent?
peak velocity - Which of the following is NOT identifiable in the image:
Presence of flow
Flow velocity
Peak velocity
Direction of flow
damping material - Which transducer component is bonded to the back of the transducer's
active element?
Curvilinear - Which type of ultrasound transducer creates this displayed image shape?
65 microseconds - If the depth of a reflector is 5 centimeters in soft tissue, what is the time
of flight?
,130 milliseconds
65 microseconds
13 microseconds
65 milliseconds
Posterior enhancement - What image artifact is present in this image, identified by the red
arrow?
compensation - Which function of the receiver has the capability to produce an image that
is uniformly bright from top to bottom?*
Focus, improve lateral resolution - The knobology function, which is circled in red, is the
_______ and its purpose it to ________.*
a) Focus, improve axial resolution
b) Caliper, let the sonographer know an organ's dimensions
c) Focus, improve lateral resolution
d) Depth marker, let the sonographer know the depth of penetration
Thermal index increases. - A sonographer is performing a renal artery Doppler examination
and implements spectral Doppler for measurement of the renal artery's peak systolic velocity. With
regard to bioeffects, how does this affect the thermal index?
Attenuation - The knobology function circled in this image compensates for which of the
following?
Reverberation - A sonographer is assisting with a core needle biopsy. During a biopsy pass,
reflections are created at increasing depths, deep to the core biopsy needle. These reflections refer
to an artifact called:
Specular - Sound is redirected in a single, uniform direction when it encounters which type
of reflector?
, Temporal resolution increases - A sonographer performing an abdominal ultrasound
narrows the sector width. Which of the following is affected?
30 - Sonographers should be aware of work-related musculoskeletal disorders. Best practice
while scanning is to avoid abducting the arm more than how many degrees?
b. Use the lowest possible output power that provides a diagnostic image. - Which action
demonstrates best practice during ultrasound exams regarding the ALARA principle?
A. The exposure time should be extended during the exam.
b. Use the lowest possible output power that provides a diagnostic image.
c. Use the lowest possible gain.
d. Ensure that the time gain compensation (TGC) is within acceptable limits.
a.Transient - Which type of cavitation is the MOST concerning cause of bioeffects?
a. Transient
b. Absorption
c. Stable
d. Thermal
100 mW/cm² - Assuming an unfocused ultrasound beam, the American Institute of
Ultrasound in Medicine's "Statement on Mammalian Biological Effects of Ultrasound In Vivo" has
EXAM UPDATE
Distended bladder - Which of the following anatomical structures exhibits the lowest level
of attenuation?
Rib
Sternocleidomastoid muscle
Bowel
Distended bladder
1540 m/s - What is the average speed of sound in soft tissue?
Wavelength - In the following diagram, what does the letter (A) represent?
peak velocity - Which of the following is NOT identifiable in the image:
Presence of flow
Flow velocity
Peak velocity
Direction of flow
damping material - Which transducer component is bonded to the back of the transducer's
active element?
Curvilinear - Which type of ultrasound transducer creates this displayed image shape?
65 microseconds - If the depth of a reflector is 5 centimeters in soft tissue, what is the time
of flight?
,130 milliseconds
65 microseconds
13 microseconds
65 milliseconds
Posterior enhancement - What image artifact is present in this image, identified by the red
arrow?
compensation - Which function of the receiver has the capability to produce an image that
is uniformly bright from top to bottom?*
Focus, improve lateral resolution - The knobology function, which is circled in red, is the
_______ and its purpose it to ________.*
a) Focus, improve axial resolution
b) Caliper, let the sonographer know an organ's dimensions
c) Focus, improve lateral resolution
d) Depth marker, let the sonographer know the depth of penetration
Thermal index increases. - A sonographer is performing a renal artery Doppler examination
and implements spectral Doppler for measurement of the renal artery's peak systolic velocity. With
regard to bioeffects, how does this affect the thermal index?
Attenuation - The knobology function circled in this image compensates for which of the
following?
Reverberation - A sonographer is assisting with a core needle biopsy. During a biopsy pass,
reflections are created at increasing depths, deep to the core biopsy needle. These reflections refer
to an artifact called:
Specular - Sound is redirected in a single, uniform direction when it encounters which type
of reflector?
, Temporal resolution increases - A sonographer performing an abdominal ultrasound
narrows the sector width. Which of the following is affected?
30 - Sonographers should be aware of work-related musculoskeletal disorders. Best practice
while scanning is to avoid abducting the arm more than how many degrees?
b. Use the lowest possible output power that provides a diagnostic image. - Which action
demonstrates best practice during ultrasound exams regarding the ALARA principle?
A. The exposure time should be extended during the exam.
b. Use the lowest possible output power that provides a diagnostic image.
c. Use the lowest possible gain.
d. Ensure that the time gain compensation (TGC) is within acceptable limits.
a.Transient - Which type of cavitation is the MOST concerning cause of bioeffects?
a. Transient
b. Absorption
c. Stable
d. Thermal
100 mW/cm² - Assuming an unfocused ultrasound beam, the American Institute of
Ultrasound in Medicine's "Statement on Mammalian Biological Effects of Ultrasound In Vivo" has
