SPI MOCK EXAM QUESTIONS &
VERIFIED CORRECT ANSWERS 100%
Which selection has the highest mechanical index?
high frequency, high power
high PRF, high intensity
low frequency, high pressure
high spatial pulse length, high PRF CORRECT ANSWER - low frequency, high pressure
Under which condition is it permissible to perform a diagnostic ultrasound exam?
when a patient will benefit
when the patient has insurance
when the exam is perfectly safe
when the benefits outweigh the risks CORRECT ANSWER - when the benefits outweigh the risks
Prudent use of ultrasound includes all of the following except-
Performing an exam when the benefits outweigh the risks to the patient.
Performing an exam when the ultrasound will provide useful diagnostic information to the
patient's physician.
Performing an exam solely for gender determination of a fetus.
Performing an exam exactly as ordered by the patient's physician. CORRECT ANSWER -
Performing an exam solely for gender determination of a fetus.
Which combination would result in the highest levels of cavitation?
,high frequency and high pressure
low frequency and high pressure
high frequency and low pressure
low frequency and low pressure CORRECT ANSWER - low frequency and high pressure
Which of the following has been reported ty the AIUM as a temperature rise under which no
effects have been reported for exposures less than 50 hours?
4-degrees C
2-degrees C
8-degrees C
10-degrees C CORRECT ANSWER - 10-degrees C
Biological effects on tissue are divided into two primary mechanisms which are
direct and indirect
in vivo and in vitro
TIS and TIB
thermal and cavitation CORRECT ANSWER - thermal and cavitation
Which component of the ultrasound system poses the greatest risk to the patient directly?
The beam former
The transducer
The receiver
The display CORRECT ANSWER - transducer
True or false? The mechanistic approach to the study of bioeffects and safety includes the
identification of a theoretical construct that could produce an effect.
True
, False CORRECT ANSWER - true
True or false? It is generally believed that the effects of ultrasound on biologic media are
minimal.
True
False CORRECT ANSWER - true
The most common effect of thermal mechanism based on the use of normal intensity levels
used in diagnostic ultrasound is
a significant rise in temperature.
a significant decrease in temperature.
dissipation by absorption.
bursting of microbubbles. CORRECT ANSWER - dissipation by absorption.
Which of the following transducers cannot be evaluated during quality assurance testing?
Linear sequential array
Annular array
Vector array
All of these can be evaluated CORRECT ANSWER - All of these can be evaluated
External and internal focusing of transducers can be accomplished by
using a bandwidth filter.
using an acoustic lens or shaped, curved transducer element.
thickening the crystal.
adding metal ions and damping the crystal. CORRECT ANSWER - using an acoustic lens or
shaped, curved transducer element.
VERIFIED CORRECT ANSWERS 100%
Which selection has the highest mechanical index?
high frequency, high power
high PRF, high intensity
low frequency, high pressure
high spatial pulse length, high PRF CORRECT ANSWER - low frequency, high pressure
Under which condition is it permissible to perform a diagnostic ultrasound exam?
when a patient will benefit
when the patient has insurance
when the exam is perfectly safe
when the benefits outweigh the risks CORRECT ANSWER - when the benefits outweigh the risks
Prudent use of ultrasound includes all of the following except-
Performing an exam when the benefits outweigh the risks to the patient.
Performing an exam when the ultrasound will provide useful diagnostic information to the
patient's physician.
Performing an exam solely for gender determination of a fetus.
Performing an exam exactly as ordered by the patient's physician. CORRECT ANSWER -
Performing an exam solely for gender determination of a fetus.
Which combination would result in the highest levels of cavitation?
,high frequency and high pressure
low frequency and high pressure
high frequency and low pressure
low frequency and low pressure CORRECT ANSWER - low frequency and high pressure
Which of the following has been reported ty the AIUM as a temperature rise under which no
effects have been reported for exposures less than 50 hours?
4-degrees C
2-degrees C
8-degrees C
10-degrees C CORRECT ANSWER - 10-degrees C
Biological effects on tissue are divided into two primary mechanisms which are
direct and indirect
in vivo and in vitro
TIS and TIB
thermal and cavitation CORRECT ANSWER - thermal and cavitation
Which component of the ultrasound system poses the greatest risk to the patient directly?
The beam former
The transducer
The receiver
The display CORRECT ANSWER - transducer
True or false? The mechanistic approach to the study of bioeffects and safety includes the
identification of a theoretical construct that could produce an effect.
True
, False CORRECT ANSWER - true
True or false? It is generally believed that the effects of ultrasound on biologic media are
minimal.
True
False CORRECT ANSWER - true
The most common effect of thermal mechanism based on the use of normal intensity levels
used in diagnostic ultrasound is
a significant rise in temperature.
a significant decrease in temperature.
dissipation by absorption.
bursting of microbubbles. CORRECT ANSWER - dissipation by absorption.
Which of the following transducers cannot be evaluated during quality assurance testing?
Linear sequential array
Annular array
Vector array
All of these can be evaluated CORRECT ANSWER - All of these can be evaluated
External and internal focusing of transducers can be accomplished by
using a bandwidth filter.
using an acoustic lens or shaped, curved transducer element.
thickening the crystal.
adding metal ions and damping the crystal. CORRECT ANSWER - using an acoustic lens or
shaped, curved transducer element.
