Davies SPI REVIEW Questions And
Answers With Verified Solutions
2025|2026 | Updated
Terms in this set (1704)
What action below would be most in C: Complete the diagnostic scan in a timely fashion at the lowest output power that
keeping with the ALARA principle while achieves a quality image.
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.
What does the ALARA principle stand for? As Low As Reasonable Achievable
During performance of an obstetrical D: Increase transmit power
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
While performing a sonogram to minimize A: Use M-mode instead of pulsed-wave Doppler to measure the fetal heart rate.
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.
1/15
, Gain, TGC, and frame averaging do -Sound transmission
not affect__and therefore do not affect -Exposure
_______.
T or F: Increasing frequency does not True
increase exposure.
What potential bioeffect occurs through B: Heating
absorption of sound energy by tissue?
A: Cavitation
B: Heating
C: Attenuation
D: Reflection
E: Refraction
When practicing universal precautions you E: Wash gloves between exams for RE-use from one patient to another.
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.
A nosocomial infection is defined as one C: Hospital-acquired
that is:
A: Resistant to antibiotics
B: Restricted to the respiratory system
C: Hospital-acquired
D: Not contagious
E: Requires isolation
Thermally induced biological effects A: 1 degree C
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.
Which intensity descriptor has the A: SATA
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.
2/15
Answers With Verified Solutions
2025|2026 | Updated
Terms in this set (1704)
What action below would be most in C: Complete the diagnostic scan in a timely fashion at the lowest output power that
keeping with the ALARA principle while achieves a quality image.
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.
What does the ALARA principle stand for? As Low As Reasonable Achievable
During performance of an obstetrical D: Increase transmit power
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
While performing a sonogram to minimize A: Use M-mode instead of pulsed-wave Doppler to measure the fetal heart rate.
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.
1/15
, Gain, TGC, and frame averaging do -Sound transmission
not affect__and therefore do not affect -Exposure
_______.
T or F: Increasing frequency does not True
increase exposure.
What potential bioeffect occurs through B: Heating
absorption of sound energy by tissue?
A: Cavitation
B: Heating
C: Attenuation
D: Reflection
E: Refraction
When practicing universal precautions you E: Wash gloves between exams for RE-use from one patient to another.
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.
A nosocomial infection is defined as one C: Hospital-acquired
that is:
A: Resistant to antibiotics
B: Restricted to the respiratory system
C: Hospital-acquired
D: Not contagious
E: Requires isolation
Thermally induced biological effects A: 1 degree C
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.
Which intensity descriptor has the A: SATA
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.
2/15
