ARDMS SPI Practice Exam B Questions and Answers.
Which artifact is illustrated by this image? - Correct Answer a) Shadowing
b) Side Lobe c) Reverberation
d) Mirroring
What is increased if the pulse duration is decreased? - Correct Answer a) Bandwidth
b) Line Density
c) Frame Rate
d) Duty Factor
What is the most appropriate action for the sonographer to take when receiving a verbal
order for an exam? - Correct Answer a) Deny performance of the exam until a written request is received
b) Seek approval from supervisor
c) Verbally repeat the request back to the referrer to verify correctness
d) Document two forms of ID of the patient
What is the round trip time in soft tissue for an echo from a reflector at a depth of 1 cm - Correct Answer a) 1.54 usec
b) 6.5 usec
c)13 usec
d) 26 usec
What adjustment should be made to avoid the aliasing displayed on this spectral doppler image seen on spectral analysis? - Correct Answer a) Reposition sample volume so it is deeper.
b) Decrease acoustic power
c) Change the doppler angle from 60 to 45 degrees
d) Decrease the transducer freq
In an unfocused transducer, what is the region between the transducer face and the point where the beam diverges? - Correct Answer a) Side lobe
b) Focal Zone
c) Near field
d) Far field What caused the color pattern demonstrated in the artery indicated by the arrow in this image? - Correct Answer a) Superimposed venous flow
b) Aliasing
c) Flow reversal
d) Color side lobe artifact
What technique increases the sharpness of high contrast boundaries? - Correct Answer
a) Edge enhancement
b) Interpolation
c) Smoothing
d) Frame averaging
Which setting of an ultrasound system gives the sonographer the ability to display both strong and weak echoes? - Correct Answer a) Dynamic range
b) Resolution
c) Range calibration
d) Sensitivity
Which condition must be present for refraction to occur? - Correct Answer a) Presence of a strong specular reflector
b) Presence of several small reflectors
c) Difference in tissue prop speeds
d) A change in the angle of reflection
In this image, most of the blood flow is in which direction? - Correct Answer a) Right to left
b) Left to right
c) Bidirectional
d) Indetermiate
If red blood cells are approaching a 5 MHz doppler transducer at a sppeed of 75 cm/s, what is the appropriate received ultrasound frequency? - Correct Answer a) 4,500 kHz
b) 4,995 kHz
c) 5,005 kHz
d) 5,500 kHz
What is the most common cause of localized vertical nonuniformity in a real-time B-
mode image? - Correct Answer a) Improper TGC
b) Defective transducer elements
c) Faulty preamplifier
d) Malfunctioning scan converter
The thermal index (TI) is most affected by which type of interaction between sound and tissue? - Correct Answer a) Reflection
b) Absorption
c) Scattering
Which artifact is illustrated by this image? - Correct Answer a) Shadowing
b) Side Lobe c) Reverberation
d) Mirroring
What is increased if the pulse duration is decreased? - Correct Answer a) Bandwidth
b) Line Density
c) Frame Rate
d) Duty Factor
What is the most appropriate action for the sonographer to take when receiving a verbal
order for an exam? - Correct Answer a) Deny performance of the exam until a written request is received
b) Seek approval from supervisor
c) Verbally repeat the request back to the referrer to verify correctness
d) Document two forms of ID of the patient
What is the round trip time in soft tissue for an echo from a reflector at a depth of 1 cm - Correct Answer a) 1.54 usec
b) 6.5 usec
c)13 usec
d) 26 usec
What adjustment should be made to avoid the aliasing displayed on this spectral doppler image seen on spectral analysis? - Correct Answer a) Reposition sample volume so it is deeper.
b) Decrease acoustic power
c) Change the doppler angle from 60 to 45 degrees
d) Decrease the transducer freq
In an unfocused transducer, what is the region between the transducer face and the point where the beam diverges? - Correct Answer a) Side lobe
b) Focal Zone
c) Near field
d) Far field What caused the color pattern demonstrated in the artery indicated by the arrow in this image? - Correct Answer a) Superimposed venous flow
b) Aliasing
c) Flow reversal
d) Color side lobe artifact
What technique increases the sharpness of high contrast boundaries? - Correct Answer
a) Edge enhancement
b) Interpolation
c) Smoothing
d) Frame averaging
Which setting of an ultrasound system gives the sonographer the ability to display both strong and weak echoes? - Correct Answer a) Dynamic range
b) Resolution
c) Range calibration
d) Sensitivity
Which condition must be present for refraction to occur? - Correct Answer a) Presence of a strong specular reflector
b) Presence of several small reflectors
c) Difference in tissue prop speeds
d) A change in the angle of reflection
In this image, most of the blood flow is in which direction? - Correct Answer a) Right to left
b) Left to right
c) Bidirectional
d) Indetermiate
If red blood cells are approaching a 5 MHz doppler transducer at a sppeed of 75 cm/s, what is the appropriate received ultrasound frequency? - Correct Answer a) 4,500 kHz
b) 4,995 kHz
c) 5,005 kHz
d) 5,500 kHz
What is the most common cause of localized vertical nonuniformity in a real-time B-
mode image? - Correct Answer a) Improper TGC
b) Defective transducer elements
c) Faulty preamplifier
d) Malfunctioning scan converter
The thermal index (TI) is most affected by which type of interaction between sound and tissue? - Correct Answer a) Reflection
b) Absorption
c) Scattering
