DAVIES ULTRASOUND PHYSICS REVIEW
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 – 2026
During production of a sonogram, you image the following
structures, which is the MOST attenuating? - ANSWERS-
Calcification
86* What can you do to enhance the visibility of a specular
reflector? - ANSWERS-Scan w perpendicular incidence
With specular reflectors, the angle of reflection is equal to
the angle of transmission, so the greatest reflection will be
received back by the txd whenever perpendicular incidence
i used Increasing the amount of received energy enhances
the visibility of the reflector
,What interaction of ultrasound and tissue is primarily
responsible for imaging the internal structure or organs? -
ANSWERS-Scatterin
5. When practicing universal precautions, you should do all
the following EXCEPT: - ANSWERS-Wash gloves between
exams for reuse from one patient to another. (It is
recommended that gloves be worn during every ultrasound
examination. They should be discarded after use).
-wear gloves when there is a potential for contract with
patient body fluid
-change gloves when moving from one patient to another
-Wash hands immediately after gloves are removed
- Wear face masks or eye protection whenever there is a
possibility of blood splashing in your face
6. A nosocomial infection is defined as one that: -
ANSWERS-Is hospital-acquired
,7. Thermally induced biologic effects should be preventable
by avoiding a local tissue temperature increase exceeding: -
ANSWERS-1°C
8. Which intensity descriptor has the lowest numeric value
for the characterization of a pulsed-wave ultrasonic field? -
ANSWERS-SATA
SATA, a term that is infrequently used, means spatial
average, time average. Note: I(SPTA) is the spatial peak,
time average intensity; I(SPTP) is the spatial peak, temporal
peak.
9* Increased tissue heating could occur when you: -
ANSWERS-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 an: - ANSWERS-Epidemiological study
Which of the following actions is NOT compliant w HIPPA? -
ANSWERS-Reviewing your neighbors medical studies on
your hospital PACS system so you can give her your opinion
of her condition
, The Health Insurance Portability and Accountability Act
(HIPPA) includes rules to protect the privacy of the
individuals health information. This answer would violate
HIPPA
What does the mechanical index indicate on an ultrasound
system? - ANSWERS-The likelihood of cavitation during an
ultrasound exam
Mechanical index is derived from the peak rarefaction
pressure and the ultrasound freq, parameters shown to be
associated w onset of cavitation
In medicine, what do the initials PHI indicate? - ANSWERS-
Protected health information
14*What should you limit when the thermal index exceeds
1? - ANSWERS-Exposure time
15*To practice the ALARA principle, which of the following
techniques should you employ? - ANSWERS-Use the lowest
transmit power that allows adequate tissue visualization
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2025 – 2026
During production of a sonogram, you image the following
structures, which is the MOST attenuating? - ANSWERS-
Calcification
86* What can you do to enhance the visibility of a specular
reflector? - ANSWERS-Scan w perpendicular incidence
With specular reflectors, the angle of reflection is equal to
the angle of transmission, so the greatest reflection will be
received back by the txd whenever perpendicular incidence
i used Increasing the amount of received energy enhances
the visibility of the reflector
,What interaction of ultrasound and tissue is primarily
responsible for imaging the internal structure or organs? -
ANSWERS-Scatterin
5. When practicing universal precautions, you should do all
the following EXCEPT: - ANSWERS-Wash gloves between
exams for reuse from one patient to another. (It is
recommended that gloves be worn during every ultrasound
examination. They should be discarded after use).
-wear gloves when there is a potential for contract with
patient body fluid
-change gloves when moving from one patient to another
-Wash hands immediately after gloves are removed
- Wear face masks or eye protection whenever there is a
possibility of blood splashing in your face
6. A nosocomial infection is defined as one that: -
ANSWERS-Is hospital-acquired
,7. Thermally induced biologic effects should be preventable
by avoiding a local tissue temperature increase exceeding: -
ANSWERS-1°C
8. Which intensity descriptor has the lowest numeric value
for the characterization of a pulsed-wave ultrasonic field? -
ANSWERS-SATA
SATA, a term that is infrequently used, means spatial
average, time average. Note: I(SPTA) is the spatial peak,
time average intensity; I(SPTP) is the spatial peak, temporal
peak.
9* Increased tissue heating could occur when you: -
ANSWERS-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 an: - ANSWERS-Epidemiological study
Which of the following actions is NOT compliant w HIPPA? -
ANSWERS-Reviewing your neighbors medical studies on
your hospital PACS system so you can give her your opinion
of her condition
, The Health Insurance Portability and Accountability Act
(HIPPA) includes rules to protect the privacy of the
individuals health information. This answer would violate
HIPPA
What does the mechanical index indicate on an ultrasound
system? - ANSWERS-The likelihood of cavitation during an
ultrasound exam
Mechanical index is derived from the peak rarefaction
pressure and the ultrasound freq, parameters shown to be
associated w onset of cavitation
In medicine, what do the initials PHI indicate? - ANSWERS-
Protected health information
14*What should you limit when the thermal index exceeds
1? - ANSWERS-Exposure time
15*To practice the ALARA principle, which of the following
techniques should you employ? - ANSWERS-Use the lowest
transmit power that allows adequate tissue visualization
