Exam (elaborations)
ARDMS SPI EXAM 500 QUESTIONS AND ANSWERS 2024
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ARDMS SPI EXAM 500 QUESTIONS AND ANSWERS 2024
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ARDMS SPI EXAM 500Which unit would be best to use to express aortic valve area - ANSWERS-
centimeters squared
Express the average prop speed of sound in soft tissue - ANSWERS-1.54 mm/usec,
1540 m/sec, 1.54 km/sec
The acoustic characteristic of a medium is - ANSWERS-impedance
A reflection will occur at the boundary of two media if the media impedance are -
ANSWERS-dissimilar
The percentage of sound energy reflected at a fat/muscle interface is approx -
ANSWERS-1%
The percentage of sound energy reflected at a soft tissue/air interface is approx -
ANSWERS-50%
A reflector that is smooth surfaced and large is called - ANSWERS-specular
A sound wave is - ANSWERS-mechanical, longitudinal
A compression area of a sound wave is - ANSWERS-high pressure, high density
, A rarefaction area of a sound wave is - ANSWERS-low pressure, low density
Which is considered an acoustic variable - ANSWERS-pressure
Which is a unit for pressure - ANSWERS-N/m2
Which is a unit for density - ANSWERS-lbs/cm3
Which wave propagates in a medium - ANSWERS-sound
The range for ultrasound is - ANSWERS-greater than 20KHz
____ is the number of wave cycles per second - ANSWERS-frequency
One kilohertz is equal to - ANSWERS-1,000 cycles per second
One megahertz is equal to - ANSWERS-1,000,000 cycles per second
The useful frequency range for clinical imaging ultrasound is - ANSWERS-2 MHz to
10 MHz
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