Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
1. Where is the point of maximum intensity in
C: Focal point
a sound beam?
A: Curie point
B: Fresnel
zone C: Focal
point
D: Fraunhofer
zone E: F number
2. What action below would be most in keeping with the C. Complete
the diagnos-
ALARA principle while performing a diagnostic scan in a timely fashion at
ultra- sound examination? the lowest output
A. Allow multiple students to scan an power that achieves a
obstetrical pa- quality im-
tient because the fetus is in a good position for imag- age.
ing.
B. Prolong the sonogram to make videos of
the fetus for each family member.
C. Complete the diagnostic scan in a timely
fashion at the lowest output power that
achieves a quality image.
D. Maximize the acoustic output to brighten the
over- all image.
E.Extend the sonogram beyond the intended
scope of the exam requisition.
3. During performance of an obstetrical acoustic
ultrasound exam you adjust the system exposure?
parameters to improve the image. Which of A
the following parameters would increase :
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
Increase gain D: Increase transmit
B: Increase pow- er
TGC
C: Increase frequency
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
D: Increase transmit
power E: Increase frame
averaging
4. To minimize the risk of biological effects of ultrasound A. Use M-mod
instead
to the fetus, which imaging mode tradeoff would pulsed-wave Doppler to
be most applicable? measure the fetal
A. Use M-mode instead of pulsed-wave heart rate.
Doppler to measure the fetal heart rate.
B. Use color Doppler instead of power Doppler
to im- age the umbilical cord.
C.Use pulsed-wave Doppler instead of power
Doppler to evaluate the fetal heart.
D. Use harmonics instead of fundamental to
image the fetal spine.
E. All of the above.
5. What potential bioeffect occurs through absorption of B. Heating
sound energy by tissue?
A. Cavitation
B. Heating
C. Attenuation
D. Reflection
E. Refraction
6. When practicing universal precautions you C: Wash
should do all of the following EXCEPT: hands
A: Wear gloves when there is a potential for immediate
y after
contact with patient bodily fluids.
gloves are
B: Change gloves when moving from one removed.
patient to another.
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
E: Wash gloves between exams for re-use from one patient to another.
Verified 100% Correct!!!
1. Where is the point of maximum intensity in
C: Focal point
a sound beam?
A: Curie point
B: Fresnel
zone C: Focal
point
D: Fraunhofer
zone E: F number
2. What action below would be most in keeping with the C. Complete
the diagnos-
ALARA principle while performing a diagnostic scan in a timely fashion at
ultra- sound examination? the lowest output
A. Allow multiple students to scan an power that achieves a
obstetrical pa- quality im-
tient because the fetus is in a good position for imag- age.
ing.
B. Prolong the sonogram to make videos of
the fetus for each family member.
C. Complete the diagnostic scan in a timely
fashion at the lowest output power that
achieves a quality image.
D. Maximize the acoustic output to brighten the
over- all image.
E.Extend the sonogram beyond the intended
scope of the exam requisition.
3. During performance of an obstetrical acoustic
ultrasound exam you adjust the system exposure?
parameters to improve the image. Which of A
the following parameters would increase :
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
Increase gain D: Increase transmit
B: Increase pow- er
TGC
C: Increase frequency
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
D: Increase transmit
power E: Increase frame
averaging
4. To minimize the risk of biological effects of ultrasound A. Use M-mod
instead
to the fetus, which imaging mode tradeoff would pulsed-wave Doppler to
be most applicable? measure the fetal
A. Use M-mode instead of pulsed-wave heart rate.
Doppler to measure the fetal heart rate.
B. Use color Doppler instead of power Doppler
to im- age the umbilical cord.
C.Use pulsed-wave Doppler instead of power
Doppler to evaluate the fetal heart.
D. Use harmonics instead of fundamental to
image the fetal spine.
E. All of the above.
5. What potential bioeffect occurs through absorption of B. Heating
sound energy by tissue?
A. Cavitation
B. Heating
C. Attenuation
D. Reflection
E. Refraction
6. When practicing universal precautions you C: Wash
should do all of the following EXCEPT: hands
A: Wear gloves when there is a potential for immediate
y after
contact with patient bodily fluids.
gloves are
B: Change gloves when moving from one removed.
patient to another.
, Davies Ultrasound Physics Review Questions And Answers
Verified 100% Correct!!!
E: Wash gloves between exams for re-use from one patient to another.
