URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
__ refers to the process of programming the receiving elements to
use the higher frequency reflections for more superficial structures
and lower frequency reflections for deeper structures. -
correct answer ✅Dynamic frequency tuning
Blood flow volume changes in the body are mainly controlled by
what two factors? -
correct answer ✅Cardiac function and peripheral resistance
Which of the following console adjustments will improves the
temporal resolution on the image? -
correct answer ✅decreasing imaging depth
Which of the following will improve the display of Color Doppler
information on the image of a superficial mass? -
correct answer ✅increased probe frequency
As frequency increases, the amount of scatter __. -
correct answer ✅increases
,URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
Curved PE elements and acoustic lenses will improve which tow
types of resolution? -
correct answer ✅elevational and lateral
A __ MHZ transducer will have the thinnest element. -
correct answer ✅12
The linear transducer you are using has 7-5 MHz printed on the side
of the housing. What probe characteristic is this? -
correct answer ✅bandwidth
You switch from a 5MHz curved probe to a 2.5MHz sector probe to
image deeper in the abdomen. How is the wavelength affected by
the change to the new probe? -
correct answer ✅doubles
No flow is detected while performing a Color Doppler evaluation of
a normal patent vein. What will improve the color display? -
correct answer ✅increase the color packet size
,URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
The gray scale map is adjusted to a new map just prior to freezing
the image. This is an example of? -
correct answer ✅applying pre-processing
What is the average Nyquist limit for a 5MHz CW Doppler probe? -
correct answer ✅none of the above
The magnitude of the Doppler shift in Color Doppler determines: -
correct answer ✅the color luminance
Which of the following system control adjustments will increase the
amount of color Doppler that is superimposed over the 2D image? -
correct answer ✅increased threshold and increased persistence
The Doppler tracing demonstrates electrical noise. How can you
reduce or eliminate the artifact? -
correct answer ✅Increase the wall filter settings
If media 1 has an impedance of 65rayls and media 2 also has an
impedance of 65rayls, what percentage of the beam will be
, URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
reflected at their interface? -
correct answer ✅0%
If a pulse has a time of flight of 130 microseconds, what is the
depth of the relector? -
correct answer ✅10 cm
All of the following correctly describe dynamic receive focusing,
except: -
correct answer ✅It is a function of the receiver
Why does the Doppler tracing not touch the baseline on either
side? -
correct answer ✅high filter settings
What dimension of the mass is being measured on the image? -
correct answer ✅AP
You identify a possible stenosis in the carotid artery and you switch
the color map from velocity to variance while scanning. Which of
Mock Registry Exam A23) Questions And
Answers
__ refers to the process of programming the receiving elements to
use the higher frequency reflections for more superficial structures
and lower frequency reflections for deeper structures. -
correct answer ✅Dynamic frequency tuning
Blood flow volume changes in the body are mainly controlled by
what two factors? -
correct answer ✅Cardiac function and peripheral resistance
Which of the following console adjustments will improves the
temporal resolution on the image? -
correct answer ✅decreasing imaging depth
Which of the following will improve the display of Color Doppler
information on the image of a superficial mass? -
correct answer ✅increased probe frequency
As frequency increases, the amount of scatter __. -
correct answer ✅increases
,URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
Curved PE elements and acoustic lenses will improve which tow
types of resolution? -
correct answer ✅elevational and lateral
A __ MHZ transducer will have the thinnest element. -
correct answer ✅12
The linear transducer you are using has 7-5 MHz printed on the side
of the housing. What probe characteristic is this? -
correct answer ✅bandwidth
You switch from a 5MHz curved probe to a 2.5MHz sector probe to
image deeper in the abdomen. How is the wavelength affected by
the change to the new probe? -
correct answer ✅doubles
No flow is detected while performing a Color Doppler evaluation of
a normal patent vein. What will improve the color display? -
correct answer ✅increase the color packet size
,URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
The gray scale map is adjusted to a new map just prior to freezing
the image. This is an example of? -
correct answer ✅applying pre-processing
What is the average Nyquist limit for a 5MHz CW Doppler probe? -
correct answer ✅none of the above
The magnitude of the Doppler shift in Color Doppler determines: -
correct answer ✅the color luminance
Which of the following system control adjustments will increase the
amount of color Doppler that is superimposed over the 2D image? -
correct answer ✅increased threshold and increased persistence
The Doppler tracing demonstrates electrical noise. How can you
reduce or eliminate the artifact? -
correct answer ✅Increase the wall filter settings
If media 1 has an impedance of 65rayls and media 2 also has an
impedance of 65rayls, what percentage of the beam will be
, URR Practice Exam (SPI CME Post Test, SPI
Mock Registry Exam A23) Questions And
Answers
reflected at their interface? -
correct answer ✅0%
If a pulse has a time of flight of 130 microseconds, what is the
depth of the relector? -
correct answer ✅10 cm
All of the following correctly describe dynamic receive focusing,
except: -
correct answer ✅It is a function of the receiver
Why does the Doppler tracing not touch the baseline on either
side? -
correct answer ✅high filter settings
What dimension of the mass is being measured on the image? -
correct answer ✅AP
You identify a possible stenosis in the carotid artery and you switch
the color map from velocity to variance while scanning. Which of
