7/6/25, 2:27 PM
ARDMS SPI TEST BANK EXAM 2025-2026 \NEWEST
VERSION WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS \ LATEST UPDATE 2025-2026
\VERIFIED ANSWERS \ALREADY GRADED A+
The Nyquist Limit is equal to: c. PRF/2
a. propagation speed x
frequency
b. propagation speed/
wavelength
c. PRF/2
d. 4xV^2
Multiple echoes, equally b. ring down
spaced
originating from a gas bubble
is called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath
An increase in red a. increase
blood cell velocity will
___ the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted
The primary advantage of CW e. absence of sampling rate
Doppler is:
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
/ 1/8
, 7/6/25, 3:23 PM ARDMS SPI Exam
e. absence of sampling rate
The range for ultrasound b. 20,000 Hz (useful frequency range for clinical imaging is
begins: 2MHz-10MHz)
a. 20 Hz
b. 20,000 Hz
c. 2 MHz
d. 15 MHz
Which instrument control d. transmit gain; amplitude can be affected by the sonographer
affects the amplitude (dB)
of the outgoing signal:
a. gain
b. receiver gain
c. TGC
d. transmit gain
e. overall gain
Which of the following is c. autocorrelation
used to convert Doppler b is incorrect because fast Fourier transform is the method used
to process
shift information into
conventional Doppler shift information but is too slow a method
color:
for color Doppler
a. high PRF
b. fast Fourier transform
c. autocorrelation
d. time interval histogram
Number of pulses that an ultrasound system transmits
into the body each second. Hz. Typically 4-15 KHz. PRF
Pulse repetition frequency
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
The best way to increase the increase transducer diameter
near field length of an
ultrasound beam is to:
2/8
ARDMS SPI TEST BANK EXAM 2025-2026 \NEWEST
VERSION WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS \ LATEST UPDATE 2025-2026
\VERIFIED ANSWERS \ALREADY GRADED A+
The Nyquist Limit is equal to: c. PRF/2
a. propagation speed x
frequency
b. propagation speed/
wavelength
c. PRF/2
d. 4xV^2
Multiple echoes, equally b. ring down
spaced
originating from a gas bubble
is called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath
An increase in red a. increase
blood cell velocity will
___ the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted
The primary advantage of CW e. absence of sampling rate
Doppler is:
a. range resolution
b. range discrimination
c. range ambiguity
d. range gating
/ 1/8
, 7/6/25, 3:23 PM ARDMS SPI Exam
e. absence of sampling rate
The range for ultrasound b. 20,000 Hz (useful frequency range for clinical imaging is
begins: 2MHz-10MHz)
a. 20 Hz
b. 20,000 Hz
c. 2 MHz
d. 15 MHz
Which instrument control d. transmit gain; amplitude can be affected by the sonographer
affects the amplitude (dB)
of the outgoing signal:
a. gain
b. receiver gain
c. TGC
d. transmit gain
e. overall gain
Which of the following is c. autocorrelation
used to convert Doppler b is incorrect because fast Fourier transform is the method used
to process
shift information into
conventional Doppler shift information but is too slow a method
color:
for color Doppler
a. high PRF
b. fast Fourier transform
c. autocorrelation
d. time interval histogram
Number of pulses that an ultrasound system transmits
into the body each second. Hz. Typically 4-15 KHz. PRF
Pulse repetition frequency
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
The best way to increase the increase transducer diameter
near field length of an
ultrasound beam is to:
2/8
