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ARDMS SPI EXAM LATEST MOST TESTED
QUESTIONS/REAL EXAM /QUESTIONS AND
CORRECT ANSWERS| DETAILED SOLUTIONS
GRADE A+
Which gain will increase the risk of bioeffects?
- transmit
- receive
- gain
- overall gain
the CORRECT ANSWER is a. transmit
Which of the following is considered the memory of an ultrasound instrument?
- pulser
- transducer
- receiver
- beam former
- digital scan converter
- display monitor
the CORRECT ANSWER is e. digital scan converter
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Spectral broadening suggest:
- laminar flow
- turbulent flow
- flow away from the transducer
- flow towards the transducer
the CORRECT ANSWER is b. turbulent flow
With pulse wave Doppler axial resolution:
degrades
What color is usually use in color flow Doppler variance map to indicate turbulent flow?green
Doppler high pass filter eliminates:
high amplitude signals; low velocity flow
The Doppler wall filter is considered a:
high pass filter
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The Nyquist Limit is equal to:
- propagation speed x frequency
- propagation speed/ wavelength
- PRF/2
- 4xV^2
the CORRECT ANSWER is c. PRF/2
Multiple echoes, equally spaced originating from a gas bubble is
called:
- comet tail
- ring down
- slice thickness artifact
- multipath
the CORRECT ANSWER is b. ring down
An increase in red blood cell velocity will_____ the Doppler
Shift:
- increase
- decrease
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- not change
- cannot be predicted
the CORRECT ANSWER is a. increase
The primary advantage of CW Doppler is:
- range resolution
- range discrimination
- range ambiguity
- range gating
- absence of sampling rate
the CORRECT ANSWER is e. absence of sampling rate
The range for ultrasound begins:
- 20 Hz
- 20,000 Hz
- 2 MHz
- 15 MHz
the CORRECT ANSWER is b. 20,000 Hz (useful frequency range for clinical imaging is 2MHz-10MHz)