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URR MOCK EXAM 1 SPI QUESTIONS AND ANSWER | LATEST UPDATE

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____ is defined as specific area or location where Doppler shift info is being obtained. A. spectral broadening B. nyquist limit C. sample volume D. spectral window -:- C. sample volume Spatial resolution is: A. the minimum reflector separation required to produce separate echos. B. highes...

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  • September 17, 2024
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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




URR MOCK EXAM 1 SPI QUESTIONS AND
ANSWER | LATEST UPDATE
____ is defined as specific area or location where Doppler shift info is being obtained.


A. spectral broadening


B. nyquist limit


C. sample volume


D. spectral window


✓ -:- C. sample volume




Spatial resolution is:


A. the minimum reflector separation required to produce separate echos.


B. highest with linear phased arrays.


C. the weakest reflected signal the transducer can receive


D. another term for slice thickness resolution


✓ -:- A. the minumum reflector separation required to produce echos




Which of the following Doppler angles would lead to the most significant error in

estimation of the flow velocity?




1|P a g e | G r a d e A + | 2 0 2 0 2 5

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!


A. 25


B. 45


C. 65


D. 80


✓ -:- D. 80




which of the following necessary machine setting with performing a contrast evolution of

the heart?


A. harmonic imaging off


B. mechincal index set to 0.3 or lower


C. mechanical index set to 1.0 or greater


D. Low PRF color Doppler setting


✓ -:- B. mechanical index set to 0.3 or lower




How many pulses are needed per scan line in order to generate a single frame of color

Doppler?


A. 6


B. 1




2|P a g e | G r a d e A + | 2 0 2 0 2 5

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!


C. 16


D. 3


✓ -:- D. 3




The rectus abdominis muscles are associated with ____, while the diaphragm is associated

with ______.


A. shadowing, enhancement


B. comet tail, ring down


C. refractive shadowing, lobe artifact


D. refraction artifact, mirror image artifact


✓ -:- D. refraction artifact, mirror image artifact




When evaluating a suspected arterial stenosis, a doppler angel of ____ degrees will produce

the most accurate flow velocity.


A. 0


B. 30


C. 60


D. 90




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, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



✓ -:- A. 0




Increasing the angle of electronic steering causes _____ production of lobe artifact.


A. increased


B. decreased


C. no change


D. limited


✓ -:- A. increased




Put the following media in order from lowest to highest according to their acoustic

impedance:


Bone


Air


Liver


Blood


✓ -:- Air, blood, liver, bone




Even and odd harmonic frequencies are created by:



4|P a g e | G r a d e A + | 2 0 2 0 2 5

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