Answers
to make the US beam more perpendicular to the long axis of the
needle -
correct answer ✅Why did the sonographer steer the US image
during the thyroid biopsy?
Elevational -
correct answer ✅Some US system allow you to adjust the beam
thickness or slice thickness. Decreasing the slice thickness will
primarily improve ______________ resolution.
,SPI Mock Registry Exam C23 Questions And
Answers
Blood flow moves in layer with the highest velocity layer in there in
the center of the vessel -
correct answer ✅Which of the following statements best describes
laminar flow?
decrease -
correct answer ✅While scanning the carotid artery, you obtain a
Doppler tracing and obtain the peak velocity. Before recording the
image, you decrease the cursor angle from the last sample taken
and record the new image. How will this change affect the peak
velocity displayed from the new sample?
receiver gain -
correct answer ✅Which of the following instrument controls does
the sonographer use to adjust the amplitude of a reflected of sound
wave?
increased stiffness -
correct answer ✅What leads to the increased propagation speed
of sound in the media in which it travels?
, SPI Mock Registry Exam C23 Questions And
Answers
clean posterior shadowing -
correct answer ✅What artifact is demonstrated on the US image
posterior to the gallbladder?
2mm element thickness -
correct answer ✅Which of the following transducers would have
the best axial resolution?
reduce output power -
correct answer ✅What can be done to reduce the Mechanical
Index level during an exam?
Propagation speed in tissue -
correct answer ✅Which of the following is a primary factor in
determining the frame rate of an ultrasound system?
the wavelength decreases because they are directly related -
correct answer ✅When frequency increases:
reduce sweep speed -
correct answer ✅The patient being evaluated has a known cardiac