ARDMS SPI Exam 2023 Questions and Answers Ultrasound Physics SPI exam questions with correct answers ARDMS SPI Practice Exam B Questions with Verified Answers ARDMS- SPI Exam Questions with correct Answers SPI Flashcards (definitions and formulas) Davies SPI REVIEW 2023 Questions and Answers (Grade...
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Which gain will increase the risk of bioeffects? a. transmit b. receive c. gain d. overall gain - Answer- a. transmit Which of the following is considered the memory of an ultrasound instrument? a. pulser b. transducer c. receiver d. beam former e. digital scan converter f. display moni...
Voorbeeld 2 van de 6 pagina's
In winkelwagenWhich gain will increase the risk of bioeffects? a. transmit b. receive c. gain d. overall gain - Answer- a. transmit Which of the following is considered the memory of an ultrasound instrument? a. pulser b. transducer c. receiver d. beam former e. digital scan converter f. display moni...
length is measured in - Answer- cm, feet area is measured in - Answer- cm^2, feet^2 volume is measured in - Answer- cm^3, feet^3 percent is not - Answer- a unit increase by a factor means - Answer- to multiply decrease by a factor means - Answer- to divide how many hertz is 3 MHZ -...
Voorbeeld 3 van de 27 pagina's
In winkelwagenlength is measured in - Answer- cm, feet area is measured in - Answer- cm^2, feet^2 volume is measured in - Answer- cm^3, feet^3 percent is not - Answer- a unit increase by a factor means - Answer- to multiply decrease by a factor means - Answer- to divide how many hertz is 3 MHZ -...
Which artifact is illustrated by this image? - Answer- a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? - Answer- a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographe...
Voorbeeld 1 van de 4 pagina's
In winkelwagenWhich artifact is illustrated by this image? - Answer- a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? - Answer- a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographe...
The horizontal axis, or x-axis - Answer- Runs side to side The vertical axis, or y-axis - Answer- Runs up and down Unrelated - Answer- Two items that are not associated Related or Proportional - Answer- Two items that are associated or affiliated However, the relationship between the item...
Voorbeeld 4 van de 35 pagina's
In winkelwagenThe horizontal axis, or x-axis - Answer- Runs side to side The vertical axis, or y-axis - Answer- Runs up and down Unrelated - Answer- Two items that are not associated Related or Proportional - Answer- Two items that are associated or affiliated However, the relationship between the item...
Pulsatile Flow - Answer- Flow that Accelerates and decelerates w/ each cardiac cycle Infrasound - Answer- Below the range of human hearing, less that 20 Hz Audible Sound - Answer- The range of human hearing 20-20,000Hz ALARA - Answer- (as low as reasonably achievable) provides the least amo...
Voorbeeld 2 van de 12 pagina's
In winkelwagenPulsatile Flow - Answer- Flow that Accelerates and decelerates w/ each cardiac cycle Infrasound - Answer- Below the range of human hearing, less that 20 Hz Audible Sound - Answer- The range of human hearing 20-20,000Hz ALARA - Answer- (as low as reasonably achievable) provides the least amo...
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 fam...
Voorbeeld 4 van de 177 pagina's
In winkelwagenWhat 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 fam...
In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - Answer- Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? - Answer- 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in - Answer- Hertz (Hz)...
Voorbeeld 2 van de 15 pagina's
In winkelwagenIn soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - Answer- Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? - Answer- 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in - Answer- Hertz (Hz)...
What is the vertical axis of the graph called? - Answer- Y-axis What is the name of the horizontal axis of a graph? - Answer- X-axis What is the reciprocal of 1,000? - Answer- 0.001 What is the metric system order from highest to lowest? - Answer- Giga,mega,kilo,hector,deca,deci,centi,milli...
Voorbeeld 2 van de 6 pagina's
In winkelwagenWhat is the vertical axis of the graph called? - Answer- Y-axis What is the name of the horizontal axis of a graph? - Answer- X-axis What is the reciprocal of 1,000? - Answer- 0.001 What is the metric system order from highest to lowest? - Answer- Giga,mega,kilo,hector,deca,deci,centi,milli...
A sound wave is - Answer- mechanical, longitudinal A compression area of a sound wave is - Answer- high pressure, high density A rarefaction area of a sound wave is - Answer- low pressure, low density Which is considered an acoustic variable - Answer- pressure Which is a unit for pressur...
Voorbeeld 2 van de 5 pagina's
In winkelwagenA sound wave is - Answer- mechanical, longitudinal A compression area of a sound wave is - Answer- high pressure, high density A rarefaction area of a sound wave is - Answer- low pressure, low density Which is considered an acoustic variable - Answer- pressure Which is a unit for pressur...
The sonographer may avoid aliasing by altering the: - Answer- image depth Which statement regarding the differences between pulsed and continuous wave Doppler is NOT correct? - Answer- CW Doppler offers significantly improved range resolution. The coupling gel used for ultrasound exams provide...
Voorbeeld 2 van de 8 pagina's
In winkelwagenThe sonographer may avoid aliasing by altering the: - Answer- image depth Which statement regarding the differences between pulsed and continuous wave Doppler is NOT correct? - Answer- CW Doppler offers significantly improved range resolution. The coupling gel used for ultrasound exams provide...
Sound waves are: - Answer- longitudinal, mechanical The speed of sound in soft tissue is closest to: - Answer- 1,500 m/s The frequency closest to the lower limit of ultrasound is: - Answer- 15,000 Hz Which is not an acoustic variable? - Answer- intensity The effects of soft tissue on ult...
Voorbeeld 3 van de 20 pagina's
In winkelwagenSound waves are: - Answer- longitudinal, mechanical The speed of sound in soft tissue is closest to: - Answer- 1,500 m/s The frequency closest to the lower limit of ultrasound is: - Answer- 15,000 Hz Which is not an acoustic variable? - Answer- intensity The effects of soft tissue on ult...
Reducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle - Answer- D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor...
Voorbeeld 3 van de 20 pagina's
In winkelwagenReducing the likelihood of bioeffects from acoustic energy is the mission of the: A. Nyquist limit B. Reynolds number C. Huygens principle D. ALARA principle E. Poiseuille principle - Answer- D. ALARA principle The number of cycles in a pulse directly related to the: A. Duty factor...
What is frequency determined by? - Answer- The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies - Answer- Lower What is the reciprocal of frequency and what is the symbol - Answer- Period, T The time it take...
Voorbeeld 2 van de 8 pagina's
In winkelwagenWhat is frequency determined by? - Answer- The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies - Answer- Lower What is the reciprocal of frequency and what is the symbol - Answer- Period, T The time it take...
What are the units of Wavelength? - Answer- millimeters What are the units of Frequency? - Answer- Hertz What are the units of Intensity? - Answer- Watts/cm 2 What are the units of propagation speed? - Answer- meters/sec What are the units of period? - Answer- second power - Answer- w...
Voorbeeld 1 van de 2 pagina's
In winkelwagenWhat are the units of Wavelength? - Answer- millimeters What are the units of Frequency? - Answer- Hertz What are the units of Intensity? - Answer- Watts/cm 2 What are the units of propagation speed? - Answer- meters/sec What are the units of period? - Answer- second power - Answer- w...
WHICH FREQUENCY IS BEST TO EVALUATE STRUCTURES LYING 1 TO 2 CM FROM THE TRANSDUCER? - Answer- 8-MHZ WHICH ULTRASOUND PARAMETER DIRECTLY AFFECTS AN ULTRASOUND BEAM'S INTENSITY? - Answer- OUTPUT POWER WHICH PARAMETER IS MOST LIKLEY TO AFFECT SPATIAL RESOLUTION? - Answer- DEPTH OF VISUALIZATION ...
Voorbeeld 1 van de 4 pagina's
In winkelwagenWHICH FREQUENCY IS BEST TO EVALUATE STRUCTURES LYING 1 TO 2 CM FROM THE TRANSDUCER? - Answer- 8-MHZ WHICH ULTRASOUND PARAMETER DIRECTLY AFFECTS AN ULTRASOUND BEAM'S INTENSITY? - Answer- OUTPUT POWER WHICH PARAMETER IS MOST LIKLEY TO AFFECT SPATIAL RESOLUTION? - Answer- DEPTH OF VISUALIZATION ...
measurement - Answer- comparison between an unlnown quanity and a standard unit Giga (G) = (value and power of 10) - Answer- 1 000 000 000 10^9 Mega (M)= (value and power of 10) - Answer- 1 000 000 10^6 Kilo (k) = (value and power of 10) - Answer- 1 000 10^3 Centi (c) = (value and power ...
Voorbeeld 1 van de 2 pagina's
In winkelwagenmeasurement - Answer- comparison between an unlnown quanity and a standard unit Giga (G) = (value and power of 10) - Answer- 1 000 000 000 10^9 Mega (M)= (value and power of 10) - Answer- 1 000 000 10^6 Kilo (k) = (value and power of 10) - Answer- 1 000 10^3 Centi (c) = (value and power ...
One reason why focused beams with low intensities are less likely to cause bioeffects is that a focused beam is less efficient in heating a large mass of tissue to a critical temperature. - Answer- True Typically, the sonographer can adjust the compression function of a receiver. - Answer- True ...
Voorbeeld 1 van de 4 pagina's
In winkelwagenOne reason why focused beams with low intensities are less likely to cause bioeffects is that a focused beam is less efficient in heating a large mass of tissue to a critical temperature. - Answer- True Typically, the sonographer can adjust the compression function of a receiver. - Answer- True ...
Which technique utilizes frequency modulation of the transmitted pulse to improve signal to noise ratio? - Answer- spatial compounding Which angle of isonation to blood flow produces the maximum doppler shift? - Answer- 180 degrees Which imaging mode requires two elements mounted side by side?...
Voorbeeld 1 van de 4 pagina's
In winkelwagenWhich technique utilizes frequency modulation of the transmitted pulse to improve signal to noise ratio? - Answer- spatial compounding Which angle of isonation to blood flow produces the maximum doppler shift? - Answer- 180 degrees Which imaging mode requires two elements mounted side by side?...
Which of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - Answer- d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - Answer- d. Damp...
Voorbeeld 3 van de 29 pagina's
In winkelwagenWhich of the following do the source and the medium determine? a. duty factor b. frequency c. propagation speed d. axial resolution - Answer- d. Axial resolution is affected by all of the following EXCEPT a. frequency b. damping c. spatial pulse length d. focusing - Answer- d. Damp...
When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - Answer- compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - Answer- ...
Voorbeeld 1 van de 4 pagina's
In winkelwagenWhen the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - Answer- compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - Answer- ...
Longitudinal,mechanical - Answer- Sound waves are ? 1,500 m/s - Answer- The speed of US in soft tissues is closest to ? Intensity - Answer- Which is not an acoustic variable? Acoustic propagation properties - Answer- The effects of soft tissues on US are called? Pay your dues - Answer- U...
Voorbeeld 2 van de 15 pagina's
In winkelwagenLongitudinal,mechanical - Answer- Sound waves are ? 1,500 m/s - Answer- The speed of US in soft tissues is closest to ? Intensity - Answer- Which is not an acoustic variable? Acoustic propagation properties - Answer- The effects of soft tissues on US are called? Pay your dues - Answer- U...
Which of the following is defined as only the active time? - Answer- Pulse duration The inertia of the medium describes its: - Answer- Density Which of the following is determined by the sound source only? - Answer- Frequency The prefix "centi" denotes: - Answer- Hundredths If the angl...
Voorbeeld 1 van de 4 pagina's
In winkelwagenWhich of the following is defined as only the active time? - Answer- Pulse duration The inertia of the medium describes its: - Answer- Density Which of the following is determined by the sound source only? - Answer- Frequency The prefix "centi" denotes: - Answer- Hundredths If the angl...
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