Davies Physics Review (Part
1) (Patient care, safety &
communications) Solved
Correctly To Score A+
What action below would be most in C
keeping with the ALARA principle while
performing a diagnostic ultrasound
exam?
A. Allow multiple students to scan an
obstetric patient because the fetus us
in a good position for imaging
B. Prolong the sonographic
examination 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 overall image.
E. Extend the sonographic examination
beyond the intended scope of the ex
am requisition
1/
9
, During performance of an obstetric D
ultrasound exam, you adjust the
system parameters to improve the
image. Which of the following
parameters would
increase acoustic exposure?
A. increase receiver gain
B. increase TGC
C. Increase frequency
D. Increase transmit power
E. increase frame
averaging (persistence)
To minimize the risk of biologic A
effects of ultrasound to the fetus,
which
imaging mode tradeoff would be most
applicable?
A. Use M-mode instead of pulsed-
wave Doppler to measure the fetal
heart rate
B. Use color Doppler instead of
power Doppler to image 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
What potential bioeffect occurs through B
absorption of sound energy by tissue?
a. Cavitation
B. Heating
C. Attenuation
D. Refelction
E. Refraction
2/
9
1) (Patient care, safety &
communications) Solved
Correctly To Score A+
What action below would be most in C
keeping with the ALARA principle while
performing a diagnostic ultrasound
exam?
A. Allow multiple students to scan an
obstetric patient because the fetus us
in a good position for imaging
B. Prolong the sonographic
examination 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 overall image.
E. Extend the sonographic examination
beyond the intended scope of the ex
am requisition
1/
9
, During performance of an obstetric D
ultrasound exam, you adjust the
system parameters to improve the
image. Which of the following
parameters would
increase acoustic exposure?
A. increase receiver gain
B. increase TGC
C. Increase frequency
D. Increase transmit power
E. increase frame
averaging (persistence)
To minimize the risk of biologic A
effects of ultrasound to the fetus,
which
imaging mode tradeoff would be most
applicable?
A. Use M-mode instead of pulsed-
wave Doppler to measure the fetal
heart rate
B. Use color Doppler instead of
power Doppler to image 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
What potential bioeffect occurs through B
absorption of sound energy by tissue?
a. Cavitation
B. Heating
C. Attenuation
D. Refelction
E. Refraction
2/
9
