DAVIES SPI REVIEW / EXPERT VERIFIED ACTUAL
QUESTIONS & ANSWERS FOR GUARANTEED PASS |
NEWEST 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. -
(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
QUESTIONS & ANSWERS FOR GUARANTEED PASS |
NEWEST 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. -
(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
