Amplitude prp and prf Study guides, Class notes & Summaries
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Sonography Canada Core Review Correct 100%(RATED A+)
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f - ANSWER v/wavelength 
 
frequency - ANSWER number of cycles per second 
 
T - ANSWER 1/f 
 
Period - ANSWER length of time for one cycle 
 
1540 m/s - ANSWER speed of sound in soft tissue 
 
infrasound - ANSWER <20Hz 
 
audible sound - ANSWER 20Hz-20,000Hz 
 
ultrasound - ANSWER >20,000Hz 
 
c - ANSWER = root (bulk modulus/density) 
or 
=stiffness/density 
 
bulk modulus - ANSWER stress/strain 
 
I - ANSWER = P/a 
 
P - ANSWER = E/T 
 
Amplitude - ANSWER maximum deviation from normal 
 ...
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SPI Exam Review Questions And Answers (Updated And Verified)
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SPI Exam Review Questions And Answers 
(Updated And Verified) 
Ultrasound imaging type in which pulses are reflected and used to produce a display - 
answerpulsed wave 
brightness of the dots on image - answeramplitude 
round-trip travel time per cm in soft tissue - answer13 microseconds 
A line produced on a display that represents ultrasonic echoes returning from the body. A 
sonographic image is composed of many such lines. - answerscan line 
Type of image presented in a rectangular format. 
...
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ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS 2023
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ARDMS SPI STUDY GUIDE QUESTIONS AND ANSWERS 2023 
In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... 
Remain the Same because stiffness and density affect Propagation Speed. 
 
 
 
What is the audible range? 
20-20,000Hz 
 
>20,000Hz=Ultrasound 
 
 
 
Frequency is measured in 
Hertz (Hz) 
is 
Cycles per Second 
 
Not affected by sonographer 
 
Increase Frequency; Decrease Depth 
 
 
 
A period is the length of time it takes for 
one complete wavelength ...
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ARDMS SPI EXAM STUDY GUIDE 180 Questions with Verified Answers,100% CORRECT
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ARDMS SPI EXAM STUDY GUIDE 180 Questions with Verified Answers 
 
 
In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - CORRECT ANSWER Remain the Same because stiffness and density affect Propagation Speed. 
 
What is the audible range? - CORRECT ANSWER 20-20,000Hz 
 
>20,000Hz=Ultrasound 
 
Frequency is measured in - CORRECT ANSWER Hertz (Hz) 
is 
Cycles per Second 
 
Not affected by sonographer 
 
Increase Frequency; Decrease Depth 
 
A period is t...
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SPI Review Question and answers already solved and verified 100% 2023
- Exam (elaborations) • 15 pages • 2023
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SPI Review Question and answers already solved and verified 100% 2023In regards to low imaging depth, 
___ PRF 
___ PRP 
___ Duty Factor 
high, short, high 
 
 
 
In regards to deeper imaging depth, 
___ PRF 
___ PRP 
___ Duty Factor 
low, long, low 
 
 
 
What makes a wavelength longer? 
low frequency, and slow mediums 
 
 
 
What makes a wavelength shorter? 
high frequency, and fast mediums 
 
 
 
If frequency of sound is doubled, what happens to wavelength? 
It is halved 
 
 
 
What is the d...
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ARDMS practice Test 100 Questions with Verified Answers,100% CORRECT
- Exam (elaborations) • 20 pages • 2023
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ARDMS practice Test 100 Questions with Verified Answers 
 
Sonographers should be aware of work-related musculoskeletal disorders. Best practice while scanning is to avoid abducting the arm more than how many degrees? 
a. 50 
b. 90 
c. 30 
d. 40 - CORRECT ANSWER c. 30 
 
Which action demonstrates best practice during ultrasound exams regarding the ALARA principle? 
a. The exposure time should be extended during the exam. 
b. use the lowest possible output power that provides a diagnostic image. ...
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Sonography Canada – Core Questions & Answers(GRADED A)
- Exam (elaborations) • 8 pages • 2023
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what is the I SPPA for mechanical bioeffects? -ANSWER 190W/cm^2 
 
what is the I SPTA for thermal bioeffects? -ANSWER 720mW/cm^2 
 
recommended MI for fetal scanning -ANSWER MI < 1.9 
 
recommended TI for fetal scanning -ANSWER TI < 0.7 
 
after what fetal age is safe to use PW doppler? -ANSWER 14 weeks 
 
what does ALARA stand for -ANSWER as low as reasonably achievable 
 
frequency -ANSWER # of cycles/second 
f = 1/p 
 
period -ANSWER time it takes for 1 cycle to occur (usec) 
P = 1/f 
 ...
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Sonography Canada – Core Questions & Answers(GRADED A+)
- Exam (elaborations) • 8 pages • 2023
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what is the I SPPA for mechanical bioeffects? -ANSWER 190W/cm^2 
 
what is the I SPTA for thermal bioeffects? -ANSWER 720mW/cm^2 
 
recommended MI for fetal scanning -ANSWER MI < 1.9 
 
recommended TI for fetal scanning -ANSWER TI < 0.7 
 
after what fetal age is safe to use PW doppler? -ANSWER 14 weeks 
 
what does ALARA stand for -ANSWER as low as reasonably achievable 
 
frequency -ANSWER # of cycles/second 
f = 1/p 
 
period -ANSWER time it takes for 1 cycle to occur (usec) 
P = 1/f 
 ...
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ARDMS Exam 69 Questions with Verified Answers,100% CORRECT
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ARDMS Exam 69 Questions with Verified Answers 
 
 
Tendonitis of the thumb - CORRECT ANSWER de Quervain's disease 
- Gripping of transducer 
 
What is trigger finger? - CORRECT ANSWER inflammation of tendon sheath in the finger due to repeated gripping of the transducer 
 
What does the FDA do for ultrasound? - CORRECT ANSWER Regulates instruments according to application, output intensities, and TI/MI 
 
What does the AIUM recommend for ultrasound? - CORRECT ANSWER Prudent use of US in clinica...
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Understanding ultrasound physics Ch. 14 Exam Question with Verified Answers
- Exam (elaborations) • 5 pages • 2024
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What are the 6 major components of the ultrasound system? - ANSWER--Transducer 
-Pulser and beam former 
-Receiver 
-Display 
-Storage 
-Master synchronizer 
 
What do the Pulser and Beam former do? - ANSWER-Create and control the electrical signals sent to the transducer to generate sound pulses 
 
What does the Pulser determine? - ANSWER-Amplitude, PRP and PRF 
 
What happens when the Pulser's spike is set to LOW voltage? - ANSWER-Slight PZT vibration transmits weak sound beam--> Reflecte...
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