2
Davies Physics Review (Part 1) (Patient care, safety &
|| || || || || || || || ||
communications) Exam with accurate detailed solutions || || || || ||
What action below would be most in 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
|| || || || || || || || || || || || || ||
- ✔✔C||
During performance of an obstetric 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
|| || ||
, 2
E. increase frame averaging (persistence) - ✔✔D
|| || || || || ||
To minimize the risk of biologic 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 - ✔✔A
|| || || || || ||
What potential bioeffect occurs through absorption of sound energy by tissue?
|| || || || || || || || || ||
a. Cavitation
||
B. Heating
||
C. Attenuation
||
D. Refelction
||
E. Refraction - ✔✔B
|| || ||
When practicing universal precautions, you should do all the following EXCEPT:
|| || || || || || || || || ||
A. Wear gloves when there is a potential for contact with patient bodily fluids
|| || || || || || || || || || || || ||
Davies Physics Review (Part 1) (Patient care, safety &
|| || || || || || || || ||
communications) Exam with accurate detailed solutions || || || || ||
What action below would be most in 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
|| || || || || || || || || || || || || ||
- ✔✔C||
During performance of an obstetric 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
|| || ||
, 2
E. increase frame averaging (persistence) - ✔✔D
|| || || || || ||
To minimize the risk of biologic 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 - ✔✔A
|| || || || || ||
What potential bioeffect occurs through absorption of sound energy by tissue?
|| || || || || || || || || ||
a. Cavitation
||
B. Heating
||
C. Attenuation
||
D. Refelction
||
E. Refraction - ✔✔B
|| || ||
When practicing universal precautions, you should do all the following EXCEPT:
|| || || || || || || || || ||
A. Wear gloves when there is a potential for contact with patient bodily fluids
|| || || || || || || || || || || || ||
