DAVIES SPI REVIEW QUESTIONS AND ANSWERS LATEST TOP SCORE.
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DAVIES SPI REVIEW QUESTIONS AND ANSWERS LATEST TOP SCORE.
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...
DAVIES SPI REVIEW QUESTIONS AND
ANSWERS LATEST TOP SCORE.
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
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?
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
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:
A: Decrease frequency.
,B: Increase transmit power.
C: Decrease exposure time.
D: Decrease pulse repetition frequency.
E: All of the above - correct answer. B: Increase transmit power.
A study designed to determine if there is an association between an adverse effect in a
population and exposure to a particular agent is a(n):
A: Case report
B: Epidemiological study
C: In vitro study
D: In vivo study
E: Single-incident investigation - correct answer. B: Epidemiological study
Which of the following actions is NOT compliant with HIPAA?
A: Cropping all patient identifiers from images used for teaching purposes.
B: Refraining from disclosing patient health information without proper authorization.
C: Reviewing your neighbors medical studies on your hospital PACS system so you can
give her your opinion of her condition.
D: Covering your daily requisition list so that the names are not visible to patients and
visitors.
E: All of these actions are compliant with HIPAA. - correct answer. C: Reviewing your
neighbors medical studies on your hospital PACS system so you can give her your
opinion of her condition.
What does HIPAA stand for? - correct answer. The Health Insurance Portability and
Accountability Act
What does mechanical index indicate on an ultrasound system?
A: The maximum temperature increase in tissue
B: The minimum temperature increase in tissue
C: Acoustic power in milliwatts
D: The liklihood of cavitation during an ultrasound exam
E: Minutes of exposure time before tissue heating is too great - correct answer. D:
The liklihood of cavitation during an ultrasound exam.
In medicine what do the initials "PHI" indicate?
A: Private health indicator
B: Personal heart index
C: Personal health information
D: Private health institute
E: Protected health information - correct answer. E: Protected health information
What should you limit when the thermal index exceeds 1?
A: Overall gain
B: TGC
C: Exposure time
, D: Scanning depth
E: All of the above - correct answer. C: Exposure time
To practice the ALARA principle which of the following techniques should you employ?
A: Always use the least amount of Reciever gain that allows adequate tissue
visualization.
B: Adjust the controls so that the MI and TI read outs exceed 1.
C: Use the lowest transmit power that allows adequate tissue visualization.
D: Use the highest frame averaging setting.
E: Maximize exposure time. - correct answer. C: Use the lowest transmit power that
allows adequate tissue visualization.
The thermal index indicates:
A: Estimated maximum temperature increase in tissue
B: Minutes of exposure time before heating is too great
C: Seconds of exposure time before heating is too great
D: Acoustic power in milliwatts
E: Liklihood of cavitation - correct answer. A: Estimated maximum temperature
increase in tissue.
Which operator control most directly adjusts the intensity of the transmitted pulse?
A: Receiver gain
B: Depth of scanning
C: Acoustic output (transmit) power
D: Time gain compensation (TGC)
E: Pulse repetition frequency - correct answer. C: Acoustic output (transmit) power
Which of the following would show the highest intensity value?
A: SATP
B: SATA
C: Im
D: SPPA
E: SPTP - correct answer. E: SPTP
Which intensity parameter is not applicable for continuous-wave ultrasound?
A: SATA
B: SPTA
C: SPPA
D: SAPA
E: C and D - correct answer. E: C and D
Which of the following would most likely have the highest SPTA value?
A: CW Doppler
B: B-mode real-time scanners
C: Static B-mode scanners
D: PW Doppler
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