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ARDMS- Sonography Principles And Instrumentation, Exams of Nursing

Johns Hopkins University (JHU)Nursing

ARDMS- Sonography Principles And Instrumentation

Typology: Exams

2024/2025

Available from 06/15/2025

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ARDMS SPI (ARDMS A & B) EXAM LATEST REAL
EXAM 200 QUESTIONS AND CORRECT
ANSWERS|AGRADE
1. 3cm what is the distance to the interface
if the round trip time for a sound
wave is 39 microseconds?
2. low frequency, low amplitude which signals are eliminated by the
wall filter in a spectral Doppler dis-
play?
3. two images demonstrating the same
pathology from different scan planes at minimum, what is required when
documenting a pathology discov-
ered during an examination?
4. Increased by 2 times If the diameter of the sound beam
is halved by focusing, what hap-
pens to the intensity
5. A what is the most common cause of
localized vertical nonuniformity in a
real-time B-mode image?
a) Improper TGC
b) Defective transducer elements
c) Faulty preamplifier
d) Malfunctioning scan converter
6. C What is this artifact?
A. Shadowing
B. Side lobe
C. Reverberation
D. Mirror image
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Download ARDMS- Sonography Principles And Instrumentation and more Exams Nursing in PDF only on Docsity!

ARDMS SPI (ARDMS A & B) EXAM LATEST REAL

EXAM 200 QUESTIONS AND CORRECT

ANSWERS|AGRADE

  1. 3cm what is the distance to the interface if the round trip time for a sound wave is 39 microseconds?
  2. low frequency, low amplitude which signals are eliminated by the wall filter in a spectral Doppler dis- play?
  3. two images demonstrating the same pathology from different scan planes at minimum, what is required when documenting a pathology discov- ered during an examination?
  4. Increased by 2 times If the diameter of the sound beam is halved by focusing, what hap- pens to the intensity
  5. A what is the most common cause of localized vertical nonuniformity in a real-time B-mode image? a) Improper TGC b) Defective transducer elements c) Faulty preamplifier d) Malfunctioning scan converter
  6. C What is this artifact? A. Shadowing B. Side lobe C. Reverberation D. Mirror image
  1. D How do you fix this A. Decrease the color scale

Spatial resolution improve when us- ing high resolution mesh Future - based reconstruction Store full three- volume acquired

  1. what is dynamic aperture? C A.aperture that varies with transmit frequency B. aperture that decreases as a func- tion of time C. aperture that increases with in- creasing focal length D. aperture that changes as a function of frame rate
  2. to which acoustic variable is penetra- A tion depth inversely related? A.frequency B. wavelength C.period D.propagation speed
  3. which imaging mode requires a broad- B band transducer? A.continuous wave doppler B.Pulsed wave doppler C. color flow imaging D. harmonic imaging
  4. what is the doppler shift frequency? B A.recieved ultrasound frequency mul- tiplied by the transmitted ultrasound frequency B. difference between the transmit- ted ultrasound frequency and the re- ceived ultrasound frequency C. sum of the transmitted and received ultrasound frequencies D. ratio of the transmitted ultrasound

frequency to the received ultrasound frequency

  1. what is the potential effect of in- D creasing the pulse repetition frequen- cy(PRF)? A.Depth ambiguity B.Decreased frame rate C.Poor spatial resolution D.Decreased penetration
  2. what is an advantage of using pulsed B wave doppler compared to continu- ous wave doppler? A. higher echo sensitivity B. ability to select sample depth C.decreased display of aliasing D.improved temporal resolution
  3. what affects the beam width in the D near field? A. Pulse repetition frequency B. Pulse duration C. Frame rate D.Transducer aperture
  4. what is the advantage of using D pulsed-wave doppler versus continu- ous-wave doppler? A. allows measurement of higher ve- locities B. increases range ambiguity C.reduces the potential for aliasing D.provides depth specificity
  5. which parameter is target group C D evaluating based on the image? A.dead zone B. dynamic range

length shortest? A.fat B.blood C.bone D.muscle

  1. which term describes the averaging D together of scan lines from multiple angles to create one image? A.harmonic imaging B.realtime three dimensional imaging C.elastography D.spatial compounding
  2. which variable can cause an acoustic A shadow artifact? A.small acoustic impedance mis- match B.refraction C.perpendicular incidence D.low attenuation
  3. what does coded excitation improve B in addition to penetration? A.lateral resolution B.signal-to-noise ratio C.frame rate D.dynamic range
  4. how is lateral resolution determined A for a pulsed-echo system using a tis- sue-mimicking test object? A.by observing spaces between re- flectors perpendicular to the beam B.by observing spaces between re- flectors along the beam path C.by observing position of deepest visible reflector along the beam path D.by observing position of deepest

visible reflector perpendicular to the beam path

  1. which variable caused the color A change from blue to red of the vessel in this image? A. change in vessel direction B. color scale set to low C.turbulent flow D.severe stenosis
  2. which artifact is indicated by the ar- C rows in this image? A. shadow produced by the diaphragm B. acoustic enhancement C. comet tail D. mirror image
  3. which control improves the effects of D? attenuation? A. dynamic range B. pulse inversion C. multiple focal zones D. time gain compensation
  4. which doppler angle to flow results in A the greatest absolute doppler shift? A.0 degrees B.15 degrees C.45 degrees D.60 degrees
  5. what term describes blood flow A changes in response to respiration? A.phasic B.parabolic C.spontaneous D.pulsatile
  1. which parameter is most likely to af- D fect spatial resolution? A.dynamic range B.beam width C.system sensitivity D.depth of visualization
  2. which imaging modality can provide B the most accurate measurement of tu- mor volume? A.color doppler B.B-mode C.A-mode D.M-mode
  3. according to ALARA (as low as rea- A sonably achievable) guidelines, which parameter should be minimized? A.transmit power B.frequency C.time gain compensation D.overall gain
  4. what is an advantage of using D pulsed-wave doppler versus continu- ous wave doppler? A.allows measurement of higher ve- locities B.increases range ambigutiy C.reduces the potential for aliasing D.provides depth specificity
  5. What is demonstrated in this image transducer crystals are damaged produced by a linear array transducer placed on a uniform tissue-mimicking phantom?
  6. 3cm

what is the distance to the interface if the round trip time for a sound wave is 39 microseconds?

  1. which signals are eliminated by the wall filter in a spectral Doppler dis- play?
  2. an increase in which parameter will improve the accuracy of velocity mea- surements with autocorrelation?
  3. at minimum, what is required when documenting a pathology discovered during an examination?
  4. If the diameter of the sound beam is halved by focusing, what happens to the intensity
  5. Which parameter would change on a phantom test if the spatial pulse length were made longer? A. axial resolution B. lateral resolution C. horizontal distance resignation D. sensitivity
  6. If the ultrasound machine comes in contact with a patients body fluids, what should be done? A. remove the machine from use for the day B. use an approved disinfectant solu- tion to clean it C. call the manufacturer to see what they would do D. disinfectant to clean it low frequency, low amplitude color field of view two images demonstrating the same pathology from different scan planes Increased by 2 times A D

A. noise B. tissue penetration C. contrast resolution D. temporal resolution

  1. What is the function of a lens on a A transducer? A. focus the beam B. increase the bandwidth C. shorten the pulse length D. provide damping
  2. What would improve axial resolution? D A. increase the pulse repetition fre- quency B. reduce the receiver gain C. change the gray scale map D. increase the transducer frequency
  3. What is true of the far field? D A. sound beam converges B. intensity is highest C. lateral resolution is best D. sound beam diverges
  4. what improves lateral resolution? A A. decreasing the beam width B. increasing the pulse repetition fre- quency C. decreasing transmitted frequency D. decreasing the width of the field of view
  5. Which statement is true for a linear B phased array transducer? A. line density increases with depth B. elements are all fired nearly simul- taneously C. elements are fired in successive

groups D. all scan lines are perpendicular to the face of the transducer

  1. Which artifact is commonly seen with- D in cystic masses due to the finite di- mensions of the ultrasound beam? A. duplication B. mirror image C. reverberation D. slice thickness
  2. Which technique utilizes frequency C modulation of the transmitted pulse to improve signal to noise ratio? A. apodization B. panoramic imaging C. coded excitation D. spatial compounding
  3. What is varied to implement apodiza- A tion? A. voltage applied to each trans- ducer element? A. voltage applied to each element B. time delays between elements C. pulse length D. number of active elements
  4. What will produce no doppler shift at A a receiver? A. source and receiver moving at the same speed and direction B. source moving toward receiver C. source moving away from receiver D. receiver moving toward source
  5. Which mode requires two elements D mounted side by side? A. real time imaging
  1. a sound wave propagates fastest through which substance?
  2. when the focal point in a B-mode im- age is electronically changed, which type of focusing is in use?
  3. which technique utilizes frequency modulation of the transmitted pulse to improve signal-to-noise ratio?
  4. when a fluid is flowing at a slow and constant rate within a long tube hav- ing a uniform diameter, what is the nature of the flow?
  5. what causes range ambiguity arti- facts?
  6. what is the round trip time in soft tis- sue for an echo from a reflector at a depth of 1 cm?
  7. which variable decreases when the number of acoustic lines per frame is increased without changing its maxi- mum depth?
  8. frequency compounding improves im- age quality by doing what?
  9. which artifact is illustrated by this im- age?
  10. what is the most common cause of localized vertical nonuniformity in a real-time B-mode image? Bone Dynamic coded excitation Laminar Pulse repetition frequency set too high 13 microseconds receiver dynamic range reduces speckle Reverberation Defective transducer elements
  11. Incident angle

what is the cause of the black region in the center of the vessel seen in this image?

  1. what is increased if the pulse duration is decreased?
  2. what is the Nyquist limit if a pulsed wave Doppler instrument has a pulse repitition frequency of 16 kHz?
  3. what caused the color pattern demon- strated in the artery indicated by the arrow in this image?
  4. which adjustment should be made to avoid the aliasing displayed on this spectral Doppler image seen on spec- tral analysis?
  5. If red blood cells are approaching a 5 Mhz Doppler transducer at a speed of 75 cm/s, what is the approximate received ultrasound frequency?
  6. which condition must be present for refraction to occur?
  7. the thermal index (TI) is most affected by which type of interaction between sound and tissue?
  8. In an unfocused transducer, what is the region between the transducer face and the point where the beam diverges? frame rate 8 kHZ aliasing decrease the frequency ? Possibly 5,005 kHz a difference in tissue propagation speeds Absorption Far field
  1. Which scenerio will produce no Doppler shift to the reciever?
  2. Which imaging mode requires two el- ements mounted side by side?
  3. When the focal point in a B-mode im- age is electronically changed, which type of focusing is in use?
  4. Which of the following is a benefit of using contrast agents?
  5. Which setting of an ultrasound sys- tem gives the sonographer the abili- A. Source and reciever moving at the same speed and direction. B. Source moving toward reciever. C. Source moving away from re- ciever. D. Receiver moving toward source A. M-mode B. B-mode C. Pulsed wave Doppler D. Continuous wave Doppler A. Lens B. Mechanical C. Dynamic D. Curved crystal A. Output power can be increased after constrast administration to improve visualization. B. Increased amplitude of the re- turning Doppler signals. C. Harmonic signals produced by constrast agents are weaker than those produced by soft tissue. D. Frame rate is improved when interrogating contrast with power Doppler imaging. A. Dynamic range B. Resolution

ty to display both strong and weakk echoes?

  1. Which teqnique results in a three-di- mensional image?
  2. which finding is demonstrated in this image?
  3. How does frequency compounding imporve image quality? C. Range Calibration D. Sensitivity A. Elastography B. Harmonics C. Spatial compounding D. Surface rendering A. Wall filter saturation B. Aliasing C. Range ambiguity D. Reversal of flow A. Increase frame rate B. Improves dynamic range C. Reduces speckle D. Reduces overall gain
  4. What determines the center frequency A. Diameter of a transducer?
  5. When a fluid is flowing at a slow and constant rate within a long tube hav- ing a uniform diameter, which is the nature of the flow?
  6. What caused the color pattern demon- strated in the artery indicated by the arrow? B. Shape C. Matching layer D. Thickness A. Disturbed B. Turbulent C. Laminar D. Pulsatile A. Superimposed venous flow B. Aliasing C. Flow reversal D. Color side lobe artifact