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1 ARDMS SPI Exam Questions & Answers 2024 Complete Which gain will increase the risk of bioeffects?
- transmit
- receive
- gain
- overall gain - ANSWER>>a. transmit
- pulser
- transducer
- receiver
- beam former
- digital scan converter
- display monitor - ANSWER>>e. digital scan converter
Which of the following is considered the memory of an ultrasound instrument?
Spectral broadening suggest:
- laminar flow
- turbulent flow
- flow away from the transducer
- flow towards the transducer - ANSWER>>b. turbulent flow
With pulse wave Doppler axial resolution: - ANSWER>>degrades 1 / 2
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2 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:
- propagation speed x frequency
- propagation speed/ wavelength
- PRF/2
- 4xV^2 - ANSWER>>c. PRF/2
Multiple echoes, equally spaced originating from a gas bubble is called:
- comet tail
- ring down
- slice thickness artifact
- multipath - ANSWER>>b. ring down
An increase in red blood cell velocity will_____ the Doppler Shift:
- increase
- decrease
- not change
- cannot be predicted - ANSWER>>a. increase
The primary advantage of CW Doppler is:
- / 2