Davies SPI REVIEW EXAM QUESTIONS & ANSWERS 2023/2024
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: Prol...
Davies SPI REVIEW EXAM QUESTIONS & ANSWERS 2023/2024
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. - 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? - 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 - 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. - 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 _______. - ANSWER--
Sound transmission -Exposure
T or F: Increasing frequency does not increase exposure. - ANSWER-True
What potential bioeffect occurs through absorption of sound energy by tissue?
A: Cavitation
B: Heating C: Attenuation D: Reflection E: Refraction - 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. - 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 - 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. - 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. - 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 - 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 - 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. - 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? - 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 - 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 - ANSWER-E: Protected health information
What should you limit when the thermal index exceeds 1?
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