ARDMS SPI Comprehensive Exam With Complete Solutions 2024.
Which gain will increase the risk of bioeffects?
a. transmit
b. receive
c. gain
d. overall gain 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 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 Answer - b. turbulent flow
With pulse wave Doppler axial resolution: Answer - degrades
What color is usually use in color flow Doppler variance map to indicate turbulent flow? Answer - green Doppler high pass filter eliminates: Answer - high amplitude signals; low velocity flow
The Doppler wall filter is considered a: 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 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 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 Answer - a. increase
The primary advantage of CW Doppler is:
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
e. absence of sampling rate Answer - e. absence of sampling rate
Which gain will increase the risk of bioeffects?
a. transmit
b. receive
c. gain
d. overall gain 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 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 Answer - b. turbulent flow
With pulse wave Doppler axial resolution: Answer - degrades
What color is usually use in color flow Doppler variance map to indicate turbulent flow? Answer - green Doppler high pass filter eliminates: Answer - high amplitude signals; low velocity flow
The Doppler wall filter is considered a: 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 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 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 Answer - a. increase
The primary advantage of CW Doppler is:
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
e. absence of sampling rate Answer - e. absence of sampling rate
