Davies Ultrasound Physics Review Exam
DAVIES ULTRASOUND PHYSICS REVIEW EXAM NEWEST ACTUAL
EXAM TEST BANK COMPLETE 600 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
You are performing a sonogram and notice that the thermal index (TI) is greater
than 1. Any increase in temperature would be greatest in:
A: Liver
B: Lung
C: Kidney
D: Bone
E: Bladder - Correct Answer-D: Bone
The motion of particles in a fluid is sometimes observed in an intense ultrasound
beam. This is termed:
A: Acoustic streaming
B: Transient cavitation
C: Thermal interaction
D: Rarefaction
E: Compression - Correct Answer-A: Acoustic streaming
You are performing a sonogram and notice that the TI reading is 1. What does this
indicate?
A: The patients temperature has increased 1 degree C as a result of the ultrasound
scan.
1|Page
, Davies Ultrasound Physics Review Exam
B: The patients temperature has increased 2 degrees C as a result of the
ultrasound scan.
C: You must limit your scanning to 1 minute.
D: The output level is high enough that temperature could increase as much as 1
degree C if the transducer were held stationary.
E: The temperature at the focal point has increased by 1 degree C and scanning
time must be reduced to 4 minutes - Correct Answer-D: the output level is high
enough that temperature could increase as much as 1 degree C if the transducer
were held stationary.
What sonographic application has the lowest FDA-approved SPTA values?
A: Cardiac
B: Opthalmic
C: Peripheral vascular
D: Fetal imaging
E: Abdominal - Correct Answer-B: Opthalmic
The following advantage is associated with use of the MI and TI indices:
A: The system will automatically adjust parameters to limit exposure under
adverse conditions.
B: The system will beep to notify the sonographer when indices are too great.
C: The system will shut down when exposure becomes too great.
D: The sonographer can easily dial in a safe exposure limit for each patient.
2|Page
, Davies Ultrasound Physics Review Exam
E: Information is available on the screen to help the sonographer implement the
ALARA principle. - Correct Answer-E: Information is available on the screen to help
the sonographer implement the ALARA principle.
When scanning with pulsed-wave Doppler you would affect the acoustic exposure
by changing which of the following?
A: Doppler gain
B: High pass filter
C: Pulse repetition frequency
D: Baseline position
E: Doppler angle - Correct Answer-C: Pulse repetition frequency
What should you do to avoid nosocomial and cross-infection with sonographic
probes?
A: Probe cleaning should always precede high-level disinfection.
B: Covering a probe with a condom is a sufficient barrier to infection for
intracavitary probes.
C: Disinfection using a germicide compatible with the transducer is indicated when
the probe is in contact with mucous membranes.
D: Alcohol soak of each probe should occur between patients.
E: A and C - Correct Answer-E: A and C
The mass you are imaging has a diameter of 35mm. This value can also be
expressed as:
A: 350 cm
3|Page
, Davies Ultrasound Physics Review Exam
B: 0.35 cm
C: 3.5 cm
D: 35 m
E: 3.5 m - Correct Answer-C: 3.5 cm
Relative measurement of intensity based on a logarithmic scale is expressed in:
A: Newtons per cm squared
B: Watts per cm squared
C: Decibels
D: Pascals
E: Neper - Correct Answer-C: Decibels
Which prefix equals 10-3?
A: Micro
B: Milli
C: Mega
D: Centi
E: None of the above - Correct Answer-B: Milli
When you change the transmit frequency which of the following is altered?
A: Displacement amplitude of the particles in the medium.
B: Speed at which the sound wave propagates through the medium.
C: Number of cycles per second.
4|Page
DAVIES ULTRASOUND PHYSICS REVIEW EXAM NEWEST ACTUAL
EXAM TEST BANK COMPLETE 600 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
You are performing a sonogram and notice that the thermal index (TI) is greater
than 1. Any increase in temperature would be greatest in:
A: Liver
B: Lung
C: Kidney
D: Bone
E: Bladder - Correct Answer-D: Bone
The motion of particles in a fluid is sometimes observed in an intense ultrasound
beam. This is termed:
A: Acoustic streaming
B: Transient cavitation
C: Thermal interaction
D: Rarefaction
E: Compression - Correct Answer-A: Acoustic streaming
You are performing a sonogram and notice that the TI reading is 1. What does this
indicate?
A: The patients temperature has increased 1 degree C as a result of the ultrasound
scan.
1|Page
, Davies Ultrasound Physics Review Exam
B: The patients temperature has increased 2 degrees C as a result of the
ultrasound scan.
C: You must limit your scanning to 1 minute.
D: The output level is high enough that temperature could increase as much as 1
degree C if the transducer were held stationary.
E: The temperature at the focal point has increased by 1 degree C and scanning
time must be reduced to 4 minutes - Correct Answer-D: the output level is high
enough that temperature could increase as much as 1 degree C if the transducer
were held stationary.
What sonographic application has the lowest FDA-approved SPTA values?
A: Cardiac
B: Opthalmic
C: Peripheral vascular
D: Fetal imaging
E: Abdominal - Correct Answer-B: Opthalmic
The following advantage is associated with use of the MI and TI indices:
A: The system will automatically adjust parameters to limit exposure under
adverse conditions.
B: The system will beep to notify the sonographer when indices are too great.
C: The system will shut down when exposure becomes too great.
D: The sonographer can easily dial in a safe exposure limit for each patient.
2|Page
, Davies Ultrasound Physics Review Exam
E: Information is available on the screen to help the sonographer implement the
ALARA principle. - Correct Answer-E: Information is available on the screen to help
the sonographer implement the ALARA principle.
When scanning with pulsed-wave Doppler you would affect the acoustic exposure
by changing which of the following?
A: Doppler gain
B: High pass filter
C: Pulse repetition frequency
D: Baseline position
E: Doppler angle - Correct Answer-C: Pulse repetition frequency
What should you do to avoid nosocomial and cross-infection with sonographic
probes?
A: Probe cleaning should always precede high-level disinfection.
B: Covering a probe with a condom is a sufficient barrier to infection for
intracavitary probes.
C: Disinfection using a germicide compatible with the transducer is indicated when
the probe is in contact with mucous membranes.
D: Alcohol soak of each probe should occur between patients.
E: A and C - Correct Answer-E: A and C
The mass you are imaging has a diameter of 35mm. This value can also be
expressed as:
A: 350 cm
3|Page
, Davies Ultrasound Physics Review Exam
B: 0.35 cm
C: 3.5 cm
D: 35 m
E: 3.5 m - Correct Answer-C: 3.5 cm
Relative measurement of intensity based on a logarithmic scale is expressed in:
A: Newtons per cm squared
B: Watts per cm squared
C: Decibels
D: Pascals
E: Neper - Correct Answer-C: Decibels
Which prefix equals 10-3?
A: Micro
B: Milli
C: Mega
D: Centi
E: None of the above - Correct Answer-B: Milli
When you change the transmit frequency which of the following is altered?
A: Displacement amplitude of the particles in the medium.
B: Speed at which the sound wave propagates through the medium.
C: Number of cycles per second.
4|Page
