ARDMS SPI Exam UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
Which gain will increase the risk of bioeffects? a. transmit
a. transmit
b. receive
c. gain
d. overall gain
Which of the following is considered the memory of an e. digital scan converter
ultrasound instrument?
a. pulser
b. transducer
c. receiver
d. beam former
e. digital scan converter
f. display monitor
Spectral broadening suggest: b. turbulent flow
a. laminar flow
b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer
With pulse wave Doppler axial resolution: degrades
What color is usually use in color flow Doppler variance green
map to indicate turbulent flow?
Doppler high pass filter eliminates: high amplitude signals; low velocity flow
, The Doppler wall filter is considered a: high pass filter
The Nyquist Limit is equal to: c. PRF/2
a. propagation speed x frequency
b. propagation speed/ wavelength
c. PRF/2
d. 4xV^2
Multiple echoes, equally spaced originating from a gas b. ring down
bubble is called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath
An increase in red blood cell velocity will ___ the a. increase
Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted
The primary advantage of CW Doppler is: e. absence of sampling rate
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
e. absence of sampling rate
The range for ultrasound begins: b. 20,000 Hz (useful frequency range for clinical imaging is 2MHz-10MHz)
a. 20 Hz
b. 20,000 Hz
c. 2 MHz
d. 15 MHz
Which instrument control affects the amplitude (dB) of d. transmit gain; amplitude can be affected by the sonographer
the outgoing signal:
a. gain
b. receiver gain
c. TGC
d. transmit gain
e. overall gain
Which of the following is used to convert Doppler shift c. autocorrelation
information into color: b is incorrect because fast Fourier transform is the method used to process
a. high PRF conventional Doppler shift information but is too slow a method for color
b. fast Fourier transform Doppler
c. autocorrelation
d. time interval histogram
Which gain will increase the risk of bioeffects? a. transmit
a. transmit
b. receive
c. gain
d. overall gain
Which of the following is considered the memory of an e. digital scan converter
ultrasound instrument?
a. pulser
b. transducer
c. receiver
d. beam former
e. digital scan converter
f. display monitor
Spectral broadening suggest: b. turbulent flow
a. laminar flow
b. turbulent flow
c. flow away from the transducer
d. flow towards the transducer
With pulse wave Doppler axial resolution: degrades
What color is usually use in color flow Doppler variance green
map to indicate turbulent flow?
Doppler high pass filter eliminates: high amplitude signals; low velocity flow
, The Doppler wall filter is considered a: high pass filter
The Nyquist Limit is equal to: c. PRF/2
a. propagation speed x frequency
b. propagation speed/ wavelength
c. PRF/2
d. 4xV^2
Multiple echoes, equally spaced originating from a gas b. ring down
bubble is called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath
An increase in red blood cell velocity will ___ the a. increase
Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted
The primary advantage of CW Doppler is: e. absence of sampling rate
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
e. absence of sampling rate
The range for ultrasound begins: b. 20,000 Hz (useful frequency range for clinical imaging is 2MHz-10MHz)
a. 20 Hz
b. 20,000 Hz
c. 2 MHz
d. 15 MHz
Which instrument control affects the amplitude (dB) of d. transmit gain; amplitude can be affected by the sonographer
the outgoing signal:
a. gain
b. receiver gain
c. TGC
d. transmit gain
e. overall gain
Which of the following is used to convert Doppler shift c. autocorrelation
information into color: b is incorrect because fast Fourier transform is the method used to process
a. high PRF conventional Doppler shift information but is too slow a method for color
b. fast Fourier transform Doppler
c. autocorrelation
d. time interval histogram
