Exam (elaborations)
Davies SPI Review Exam Questions And Answers 100% Verified 2024
- Course
- Institution
Davies SPI Review Exam Questions And Answers 100% Verified 2024
[Show more]
Content preview
Davies SPI Review Exam Questions AndAnswers 100% Verified 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. CORRECT
ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS -Sound transmission -Exposure
T or F: Increasing frequency does not increase exposure. CORRECT ANSWERS True
What potential bioeffect occurs through absorption of sound energy by tissue?
A: Cavitation B: Heating C: Attenuation D: Reflection E: Refraction CORRECT ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 ANSWERS 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 E: Fetal monitor Doppler CORRECT ANSWERS D: PW Doppler
Using a hydrophone you can measure?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ElevatedExcellence. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.89. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78252 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now