DMS 104 Final Exam Questions 2026 – Advanced Diagnostic Medical Sonography Practice and
Review Guide
In the formula a=b/c, If b increases what will happen to a ? - correct answer ✔✔ Increase
During a Doppler examination, if the media boundary is moving away from the source this
would result in ? - correct answer ✔✔ Lower Frequency
The best Doppler shift is achieved when the transducer is perpendicular to the? - correct
answer ✔✔ false
Which of the following cannot be considered a unit of frequency ? - correct answer ✔✔
Anything not related to time
Decreasing the diameter of a crystal will result in a(n) _________ in lateral resolution - correct
answer ✔✔ Improved / Increase
Increasing the diameter of the piezoelectric element will result in a(n) ______________ in NFL -
correct answer ✔✔ Increase
All of the following are measures of length except ? - correct answer ✔✔ Anything not related
to distance
Increasing the Q value of a transducer will result in a(n) ________________ in DF - correct
answer ✔✔ increase
low frequency transducers have - correct answer ✔✔ increased penetration/ greater depth
, A longitudinal wave is characterized by - correct answer ✔✔ particle movement along the
direction of the wave
Increasing the thickness of the piezoelectric element will result in a(n) - correct answer ✔✔ in
the divergence of the far field
A color Doppler image demonstrates a vessel with a red mapping, this mean it is an aretery -
correct answer ✔✔ False
If an ultrasound beam is directed an interface at the 24 degree angle of incidence and the
velocity in medium 1 is less than the velocity in medium 2, the beam will - correct answer ✔✔
Reflect
If the density of the medium decreases what happens to FR - correct answer ✔✔ Increases
If frequency decreases what happens to the DF - correct answer ✔✔ Increases
If the Q value increases what happens to the PD? - correct answer ✔✔ Increases
If the wavelength decreases what happens to the DF ? - correct answer ✔✔ Decreases
If the depth doubles what happens to the PRF ? - correct answer ✔✔ Halves
If the PD decreases what happens to the PRP? - correct answer ✔✔ No effect/ remains the
same
If the PRP increases what happens to the DF? - correct answer ✔✔ Decreases
Review Guide
In the formula a=b/c, If b increases what will happen to a ? - correct answer ✔✔ Increase
During a Doppler examination, if the media boundary is moving away from the source this
would result in ? - correct answer ✔✔ Lower Frequency
The best Doppler shift is achieved when the transducer is perpendicular to the? - correct
answer ✔✔ false
Which of the following cannot be considered a unit of frequency ? - correct answer ✔✔
Anything not related to time
Decreasing the diameter of a crystal will result in a(n) _________ in lateral resolution - correct
answer ✔✔ Improved / Increase
Increasing the diameter of the piezoelectric element will result in a(n) ______________ in NFL -
correct answer ✔✔ Increase
All of the following are measures of length except ? - correct answer ✔✔ Anything not related
to distance
Increasing the Q value of a transducer will result in a(n) ________________ in DF - correct
answer ✔✔ increase
low frequency transducers have - correct answer ✔✔ increased penetration/ greater depth
, A longitudinal wave is characterized by - correct answer ✔✔ particle movement along the
direction of the wave
Increasing the thickness of the piezoelectric element will result in a(n) - correct answer ✔✔ in
the divergence of the far field
A color Doppler image demonstrates a vessel with a red mapping, this mean it is an aretery -
correct answer ✔✔ False
If an ultrasound beam is directed an interface at the 24 degree angle of incidence and the
velocity in medium 1 is less than the velocity in medium 2, the beam will - correct answer ✔✔
Reflect
If the density of the medium decreases what happens to FR - correct answer ✔✔ Increases
If frequency decreases what happens to the DF - correct answer ✔✔ Increases
If the Q value increases what happens to the PD? - correct answer ✔✔ Increases
If the wavelength decreases what happens to the DF ? - correct answer ✔✔ Decreases
If the depth doubles what happens to the PRF ? - correct answer ✔✔ Halves
If the PD decreases what happens to the PRP? - correct answer ✔✔ No effect/ remains the
same
If the PRP increases what happens to the DF? - correct answer ✔✔ Decreases
