The pw signal that is - Study guides, Class notes & Summaries
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ARDMS SPI Study Guide Questions and Answers 2023
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ARDMS SPI Study Guide Questions and Answers 2023 
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. 
True 
 
 
 
Typically, the sonographer can adjust the compression function of a receiver. 
True 
 
 
 
Mean frequency is calculated from weighted sum of frequencies in the power spectrum. 
True 
 
 
 
Refraction always occurs at the interface between two media ...
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Vascular Prep ARRT Exam 2023 Questions and Answers (Graded A)
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low cardiac output = 
high cardiac output = - ANSWER-low heart rate, low output 
high heart rate, high output 
 
low peripheral resistance = 
high peripheral resistance = - ANSWER-high flow rate 
low flow rate 
 
The PW signal that is displayed comes from? - ANSWER-The part it is supplying 
 
thicker blood flow moves more slowly 
(high resistance =) - ANSWER-viscosity 
(low flow, increased in pressure) 
 
increased hematocrit (volume of red blood cells) = - ANSWER-decreased flow 
 
Causes of hi...
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ARDMS - SPI Study Questions and Answers 2023
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ARDMS - SPI Study Questions and Answers 2023 
Which technique utilizes frequency modulation of the transmitted pulse to improve signal to noise ratio? 
spatial compounding 
 
 
 
Which angle of isonation to blood flow produces the maximum doppler shift? 
180 degrees 
 
 
 
Which imaging mode requires two elements mounted side by side? 
continuous wave doppler 
 
 
 
What is a benefit of using contrast agents? 
increased amplitude of the returning dopplers 
 
 
 
What is the most common cause of ...
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ARDMS SPI - Mock Exam Questions and Answers 2023
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ARDMS SPI - Mock Exam Questions and Answers 2023 
Materials used for the matching layer of a transducer must have an impedance between impedance levels of the ______________ 
skin and PE element 
 
 
 
Which of the following is an abnormality that would lead to an imcrease in the Reynolds number? 
stenosis of the vessel 
 
 
 
If a 3.5 MHz wave is transmitted through the media listed below, the longest wavelength will be seen in the wave moving through ____________ 
bone 
 
The speed of sound is...
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Davie's SPI Review| 304 questions| with complete solutions
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This converter converts the numbers stored in memory to proportional voltages that control the brightness on a CRT monitor CORRECT ANSWERS: Digital to Analog Converter 
 
The Digital Scan Converter is AKA: CORRECT ANSWERS: Image Memory 
 
This is where images are stored in the ultrasound system: CORRECT ANSWERS: Scan Converter 
 
The system component which is most responsible for transmit focusing: CORRECT ANSWERS: Beam Former 
 
The process of filling in the empty spaces between scan lines:...
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ARDMS - SPI Study Questions with Complete Solutions
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ARDMS - SPI Study Questions with Complete Solutions 
Which technique utilizes frequency modulation of the transmitted pulse to improve signal to noise ratio? spatial compounding 
Which angle of isonation to blood flow produces the maximum doppler shift? 180 degrees 
Which imaging mode requires two elements mounted side by side? continuous wave doppler 
What is a benefit of using contrast agents? increased amplitude of the returning dopplers 
What is the most common cause of localized vertical no...
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URR mock test 2 correctly answered 2023
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URR mock test 2 correctly answered 2023The sonographer may avoid aliasing by altering the: 
A. increasing the sample volume length 
B. transmit gain 
C. image depth 
D. increasing the frequency 
image depth 
 
 
 
Which of the following beam intensity values is used to assess potential patient exposure? 
A. SATP 
B. SPTA 
C. SPTP 
D. SATA 
SPTA 
 
 
 
 
Which of the following statements is true regarding the differences between a vector array compared to a phased sector array? 
A. The vector arr...
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IBHRE Study set Questions and Answers 2023
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IBHRE Study set Questions and Answers 2023 
What lead insulation materials are known for reducing fibroblast in growth and susceptibility to MIO and ESC? 
ePTFE and 80A polyurethane 
 
 
 
What are the two most common causes of ventricular safety pacing ? 
Ventricular ectopy and loss of atrial sensing 
 
 
 
What electrode material would most likely result in higher pacing thresholds and high polarization? 
Elgiloy 
 
 
 
Which phase of the action potential would correlate to the relative refrac...
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SPI ultrasound physics review 2023
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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 takes for 1 cycle to occur - Answer- Period 
 
What is propagation speed determined by - Answer- Stiffness and density of the medium 
 
Propagation speed of sound through soft tissue - Answer- 1,540 m/s 
...
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CCI ARDMS practice test Questions and answers, Graded A+, latest updates
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CCI ARDMS practice test Questions and answers, Graded A+, latest updates 
 
 
 
On an apical 4 chamber view, if you move the color Doppler sample box from the mitral level to the pulmonary veins, _______________. 
A. the PRF increases 
B. temporal resolution will increase 
C. the frame rate decreases 
D. the sample size should be increased for better pulmonary venous flow evaluation - c. the frame rate decreases 
 
Which of the following procedures can be performed during a left heart cathet...
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