ARDMS SPI Exam (2025) Actual Exam
Questions and Answers A+ Graded
Which .gain .will .increase .the .risk .of .bioeffects?
a. .transmit
b. .receive
c. .gain
d. .overall .gain .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .ANSWER-b. .turbulent .flow
With .pulse .wave .Doppler .axial .resolution: .- .CORRECT .ANSWER-degrades
What .color .is .usually .use .in .color .flow .Doppler .variance .map .to .indicate
.turbulent .flow? .- .CORRECT .ANSWER-green
Doppler .high .pass .filter .eliminates: .- .CORRECT .ANSWER-high .amplitude
.signals; .low .velocity .flow
The .Doppler .wall .filter .is .considered .a: .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .ANSWER-e. .absence .of .sampling .rate
The .range .for .ultrasound .begins:
a. .20 .Hz
b. .20,000 .Hz
c. .2 .MHz
d. .15 .MHz .- .CORRECT .ANSWER-b. .20,000 .Hz .(useful .frequency .range .for
.clinical .imaging .is .2MHz-10MHz)
Which .instrument .control .affects .the .amplitude .(dB) .of .the .outgoing .signal:
a. .gain
b. .receiver .gain
c. .TGC
d. .transmit .gain
e. .overall .gain .- .CORRECT .ANSWER-d. .transmit .gain; .amplitude .can .be .affected
.by .the .sonographer
Which .of .the .following .is .used .to .convert .Doppler .shift .information .into .color:
a. .high .PRF
b. .fast .Fourier .transform
c. .autocorrelation
d. .time .interval .histogram .- .CORRECT .ANSWER-c. .autocorrelation
b .is .incorrect .because .fast .Fourier .transform .is .the .method .used .to .process
.conventional .Doppler .shift .information .but .is .too .slow .a .method .for .color
.Doppler
Pulse .repetition .frequency .- .CORRECT .ANSWER-Number .of .pulses .that .an
.ultrasound .system .transmits .into .the .body .each .second. .Hz. .Typically .4-15
.KHz. .PRF .and .depth .of .a .view .are .inversely .related: .When .system .is .imaging
.deeper, .the .pulse .repetition .frequency .is .lower.
Also .the .number .of .pulses .created .each .second
Questions and Answers A+ Graded
Which .gain .will .increase .the .risk .of .bioeffects?
a. .transmit
b. .receive
c. .gain
d. .overall .gain .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .ANSWER-b. .turbulent .flow
With .pulse .wave .Doppler .axial .resolution: .- .CORRECT .ANSWER-degrades
What .color .is .usually .use .in .color .flow .Doppler .variance .map .to .indicate
.turbulent .flow? .- .CORRECT .ANSWER-green
Doppler .high .pass .filter .eliminates: .- .CORRECT .ANSWER-high .amplitude
.signals; .low .velocity .flow
The .Doppler .wall .filter .is .considered .a: .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .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 .- .CORRECT .ANSWER-e. .absence .of .sampling .rate
The .range .for .ultrasound .begins:
a. .20 .Hz
b. .20,000 .Hz
c. .2 .MHz
d. .15 .MHz .- .CORRECT .ANSWER-b. .20,000 .Hz .(useful .frequency .range .for
.clinical .imaging .is .2MHz-10MHz)
Which .instrument .control .affects .the .amplitude .(dB) .of .the .outgoing .signal:
a. .gain
b. .receiver .gain
c. .TGC
d. .transmit .gain
e. .overall .gain .- .CORRECT .ANSWER-d. .transmit .gain; .amplitude .can .be .affected
.by .the .sonographer
Which .of .the .following .is .used .to .convert .Doppler .shift .information .into .color:
a. .high .PRF
b. .fast .Fourier .transform
c. .autocorrelation
d. .time .interval .histogram .- .CORRECT .ANSWER-c. .autocorrelation
b .is .incorrect .because .fast .Fourier .transform .is .the .method .used .to .process
.conventional .Doppler .shift .information .but .is .too .slow .a .method .for .color
.Doppler
Pulse .repetition .frequency .- .CORRECT .ANSWER-Number .of .pulses .that .an
.ultrasound .system .transmits .into .the .body .each .second. .Hz. .Typically .4-15
.KHz. .PRF .and .depth .of .a .view .are .inversely .related: .When .system .is .imaging
.deeper, .the .pulse .repetition .frequency .is .lower.
Also .the .number .of .pulses .created .each .second
