ARDMS SPI EXAM – STUDY GUIDE
& PRACTICE QUESTIONS 2026/
2027 COMPLETE WITH SOLUTION
Which gain will increase the risk of bioeffects?
a. transmit
b. receive
c. gain
d. overall gain - CORRECT ANSWER -a. transmit
Which of the following is considered the memory of an ultrasound
instrument?
a. pulser
b. transducer
c. receiver
d. beam former
e. digital scan converter
f. display monitor - CORRECT ANSWER -e. digital scan converter
,Spectral broadening suggest:
a. laminar flow
b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer - CORRECT ANSWER -b. turbulent
flow
With pulse wave Doppler axial resolution: - CORRECT ANSWER -
degrades
What color is usually use in color flow Doppler variance map to
indicate turbulent flow? - CORRECT ANSWER -green
Doppler high pass filter eliminates: - CORRECT ANSWER -high
amplitude signals; low velocity flow
The Doppler wall filter is considered a: - CORRECT ANSWER -
high pass filter
The Nyquist Limit is equal to:
, a. propagation speed x frequency
b. propagation speed/ wavelength
c. PRF/2
d. 4xV^2 - CORRECT ANSWER -c. PRF/2
Multiple echoes, equally spaced originating from a gas bubble is
called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath - CORRECT ANSWER -b. ring down
An increase in red blood cell velocity will_____ the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted - CORRECT ANSWER -a. increase
The primary advantage of CW Doppler is:
& PRACTICE QUESTIONS 2026/
2027 COMPLETE WITH SOLUTION
Which gain will increase the risk of bioeffects?
a. transmit
b. receive
c. gain
d. overall gain - CORRECT ANSWER -a. transmit
Which of the following is considered the memory of an ultrasound
instrument?
a. pulser
b. transducer
c. receiver
d. beam former
e. digital scan converter
f. display monitor - CORRECT ANSWER -e. digital scan converter
,Spectral broadening suggest:
a. laminar flow
b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer - CORRECT ANSWER -b. turbulent
flow
With pulse wave Doppler axial resolution: - CORRECT ANSWER -
degrades
What color is usually use in color flow Doppler variance map to
indicate turbulent flow? - CORRECT ANSWER -green
Doppler high pass filter eliminates: - CORRECT ANSWER -high
amplitude signals; low velocity flow
The Doppler wall filter is considered a: - CORRECT ANSWER -
high pass filter
The Nyquist Limit is equal to:
, a. propagation speed x frequency
b. propagation speed/ wavelength
c. PRF/2
d. 4xV^2 - CORRECT ANSWER -c. PRF/2
Multiple echoes, equally spaced originating from a gas bubble is
called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath - CORRECT ANSWER -b. ring down
An increase in red blood cell velocity will_____ the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted - CORRECT ANSWER -a. increase
The primary advantage of CW Doppler is:
