ARDMS SPI Exam Questions - Easily Pass Your Exam

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ARDMS SPI Exam Syllabus Topics:

Topic	Details
Topic 1	Manage Ultrasound Transducers: It delves into 2D array transducer concepts, 3D 4D transducer concepts, and nonimaging transducer concepts.
Topic 2	Apply Doppler Concepts: It discusses Doppler wall filter concepts, Doppler sample gate concepts, y color priority over gray scale concepts, and concepts related to color Doppler map. Furthermore, it discusses concepts to eliminate aliasing, continuous wave Doppler concepts, and color Doppler scale concepts.
Topic 3	Provide Clinical Safety & Quality Assurance: This topic covers universal infection control protocols, QA check on ultrasound machine, transducer integrity, ultrasound machine integrity, and statistical parameter concepts.
Topic 4	Perform Ultrasound Examinations: This topic discusses patient care, sonographic ergonomic techniques, echogenicity, reverberation, and potential bioeffects. It also discusses beam steering concepts, panoramic imaging, 3D 4D concepts, and contrast imaging concepts.
Topic 5	Optimize Sonographic Images: The topic focuses on optimization of axial resolution concepts, optimization of lateral resolution concepts, optimization of elevational resolution concepts, optimization of temporal resolution concepts, and magnification techniques.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q42-Q47):

NEW QUESTION # 42
Which artifact is seen as a result of an increase in echo amplitude in the tissue located distal to an anechoic structure?

A. Reverberation
B. Comet tail
C. Enhancement
D. Mirror image

Answer: C

Explanation:
Enhancement artifact occurs when an anechoic (or low-attenuation) structure, such as a cyst or fluid-filled structure, allows the ultrasound beam to pass through it with minimal attenuation. As a result, the tissues located distal to this anechoic structure appear brighter (increased echo amplitude) on the ultrasound image because the sound waves are less attenuated by the anechoic structure, leading to higher intensity echoes returning from the distal tissue. This increased brightness beyond the anechoic area is known as enhancement.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments. Elsevier.

NEW QUESTION # 43
Which artifact displays reflectors more shallow than their actual position?

A. Ring-down
B. Section thickness
C. Mirror image
D. Range ambiguity

Answer: D

Explanation:
Range ambiguity artifact occurs when echoes from one pulse are received after the next pulse has been emitted, leading to the incorrect placement of echoes at shallower depths than their true location. This artifact typically happens when the PRF is set too high, causing the ultrasound system to interpret delayed echoes as coming from the current pulse rather than the previous one. This results in reflectors appearing closer to the transducer than they actually are.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Kremkau FW. Sonography Principles and Instruments. 9th ed. Philadelphia, PA: Elsevier; 2016.

NEW QUESTION # 44
Which adjustment would eliminate aliasing in the Doppler waveform in this image?
A close-up of an ultrasound Description automatically generated

A. Increase velocity scale.
B. Decrease wall filter.
C. Increase sample size.
D. Decrease Doppler gain.

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Aliasing occurs when Doppler frequency shifts exceed the Nyquist limit (which equals half the pulse repetition frequency). Increasing the velocity scale (which increases PRF) raises the Nyquist limit, reducing or eliminating aliasing.
Principles and Instrumentation state:
"Aliasing in pulsed-wave Doppler can be corrected by increasing the pulse repetition frequency (velocity scale), allowing higher velocities to be displayed without wraparound."
* Decreasing gain affects amplitude, not aliasing.
* Wall filter adjustments remove low-velocity signals, not aliasing.
* Increasing sample size affects spatial resolution and may reduce frame rate but does not address aliasing.
Therefore, the correct answer is C: Increase velocity scale.

NEW QUESTION # 45
What adjustment is needed to optimize the image below?
A close-up of a medical scan Description automatically generated

A. Increase wall filter
B. Decrease scale
C. Steer the box
D. Raise focal zone

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In the displayed image, the color box is not aligned parallel to the direction of blood flow in the vessel. Color Doppler is angle-dependent; when the color box is not properly steered to align with flow, the Doppler shift is reduced, and less color filling occurs. Steer the box to align the ultrasound beam more parallel to flow to maximize Doppler shift and improve color filling.
According to sonography instrumentation reference:
"Steering the color box aligns the Doppler beam with blood flow direction, optimizing the Doppler angle and improving flow visualization." Therefore, the correct answer is B: Steer the box.
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NEW QUESTION # 46
What is true regarding the display for color Doppler?

A. A positive shift is always above the baseline
B. A positive shift is always red
C. A negative shift is always venous flow
D. A negative shift always requires using a lower wall filter

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In color Doppler, frequency shifts can be displayed either above or below the baseline in spectral Doppler. In spectral Doppler, a positive shift is displayed above the baseline by default (unless inverted). In color Doppler, red/blue assignments depend on color map orientation.
Principles and Instrumentation state:
"A positive Doppler shift (flow toward the transducer) is displayed above the baseline in spectral Doppler."
* Red color (B) does not always correspond to positive shift; it depends on color map.
* Negative shift (C) does not always indicate venous flow.
* Wall filter settings (D) affect low-velocity signals, not shift direction.
Therefore, the correct answer is A: A positive shift is always above the baseline.
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NEW QUESTION # 47
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ARDMS SPI EXAM QUESTIONS - EASILY PASS YOUR EXAM

ARDMS SPI Exam Questions - Easily Pass Your Exam