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Exam (elaborations)

SPI DAVIES REVIEW EXAM LATEST UPDATE

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DAVIES SPI REVIEW EXAM LATEST UPDATE DAVIES SPI REVIEW EXAM LATEST UPDATE

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  • October 24, 2024
  • 422
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • SPI DAVIES
  • SPI DAVIES
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DAVIES SPI REVIEW EXAM 2024-2025 LATEST
UPDATE
What action below would be most in keeping with the ALARA principle while
performing a diagnostic ultrasound examination?

A: Allow multiple students to scan an obstetrical patient because the fetus is in a
good position for imaging.

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 overall image.

E: Extend the sonogram beyond the intended scope of the exam requisition. -
CORRECT ANSWER C: Complete the diagnostic scan in a timely fashion at the
lowest output power that achieves a quality image.



What does the ALARA principle stand for? - CORRECT ANSWER As Low As
Reasonable Achievable



During performance of an obstetrical ultrasound exam you adjust the system
parameters to improve the image. Which of the following parameters would
increase acoustic exposure?

A: Increase gain

B: Increase TGC

C: Increase frequency

,DAVIES SPI REVIEW EXAM 2024-2025 LATEST
UPDATE
D: Increase transmit power

E: Increase frame averaging - CORRECT ANSWER D: Increase transmit power



While performing a sonogram to minimize risk to the fetus which imaging mode
trade off 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. - CORRECT ANSWER A: Use M-mode instead of pulsed-wave
Doppler to measure the fetal heart rate.



Gain, TGC, and frame averaging do not affect _______ and therefore do not affect
_______. - CORRECT ANSWER -Sound transmission

-Exposure



T or F: Increasing frequency does not increase exposure. - CORRECT ANSWER
True



What potential bioeffect occurs through absorption of sound energy by tissue?

,DAVIES SPI REVIEW EXAM 2024-2025 LATEST
UPDATE
A: Cavitation

B: Heating

C: Attenuation

D: Reflection

E: Refraction - CORRECT ANSWER B: Heating



When practicing universal precautions you should do all of the following EXCEPT:

A: Wear gloves when there is a potential for contact with patient bodily fluids.

B: Change gloves when moving from one patient to another.

C: Wash hands immediately after gloves are removed.

D: Wear face masks or eye protection whenever there is a possibility of blood
splashing into your face.

E: Wash gloves between exams for re-use from one patient to another. - CORRECT
ANSWER E: Wash gloves between exams for RE-use from one patient to another.



A nosocomial infection is defined as one that is:

A: Resistant to antibiotics

B: Restricted to the respiratory system

C: Hospital-acquired

D: Not contagious

, DAVIES SPI REVIEW EXAM 2024-2025 LATEST
UPDATE
E: Requires isolation - CORRECT ANSWER C: Hospital-acquired



Thermally induced biological effects should be preventable by avoiding a local tissue
temperature increase exceeding:

A: 1 degree C

B: 4 degrees C

C: 10 degrees C

D: 95 degrees F

E: None; thermal effects have no threshold. - CORRECT ANSWER A: 1 degree C



Which intensity descriptor has the lowest numerical value for the characterization
of a pulsed-wave ultrasonic field?

A: SATA

B: SPTA

C: SATP

D: SPTP

E: These intensity descriptors are only used for continuous-wave ultrasound. -
CORRECT ANSWER A: SATA



Increased tissue heating could occur when you:

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