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ARDMS SPI Exam Syllabus Topics:

Topic	Details
Topic 1	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.
Topic 2	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 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	Manage Ultrasound Transducers: It delves into 2D array transducer concepts, 3D 4D transducer concepts, and nonimaging transducer concepts.
Topic 5	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.

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The Sonography Principles and Instrumentation (SPI) practice test questions are customizable which means that the customers can customize the time and SPI exam questions types according to their needs. These ARDMS SPI Practice Tests are based on real based examination scenarios which help the students practice under real SPI exam questions pressure and learn to control it.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q183-Q188):

NEW QUESTION # 183
What happens to the Doppler shift when the angle is changed from 30 to 60 degrees?

A. Decreases
B. Loss of Doppler signal
C. No significant change
D. Increases

Answer: A

Explanation:
The Doppler shift is directly related to the cosine of the angle between the ultrasound beam and the direction of blood flow. As the angle increases from 30 degrees to 60 degrees, the cosine of the angle decreases (cosine of 30 degrees is approximately 0.87, while cosine of 60 degrees is 0.5). Since the Doppler shift is proportional to the cosine of the angle, increasing the angle results in a decreased Doppler shift. This means the measured blood flow velocities will appear lower at a 60-degree angle compared to a 30-degree angle.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS). Sonography Principles and Instrumentation (SPI) Examination Review Guide.

NEW QUESTION # 184
During 3-D volume acquisition, the quality of the images is most dependent upon which factor?

A. Number of slices acquired
B. Power output
C. Speed of post-processing image compression
D. Rendering method utilized

Answer: A

Explanation:
During 3-D volume acquisition in ultrasound, the quality of the images is most dependent on the number of slices acquired. This is because the more slices (or planes) that are captured, the more detailed and accurate the reconstruction of the 3-D volume will be. This allows for better spatial resolution and more precise visualization of anatomical structures. Other factors, such as power output, rendering methods, and speed of post-processing, also affect image quality but are secondary to the number of slices in terms of fundamental image acquisition quality.
References:ARDMS Sonography Principles and Instrumentation (SPI) Review, 3-D Ultrasound Imaging section.

NEW QUESTION # 185
What is effected by increasing the color scale?

A. The Nyquist limit is increased
B. The color priority decreases
C. More colors are displayed
D. The color box width decreases

Answer: A

Explanation:
The Nyquist limit, which is the maximum detectable velocity before aliasing occurs, is directly related to the pulse repetition frequency (PRF). Increasing the color scale on the ultrasound machine effectively increases the PRF. When the PRF is increased, the Nyquist limit is also increased, allowing for the measurement of higher velocities without aliasing.
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments. Elsevier.

NEW QUESTION # 186
Which characteristic of ultrasound transmission is directly proportional to an increase in frequency?

A. Pulse duration
B. Attenuation
C. Wavelength
D. Penetration

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
As frequency increases, attenuation (energy loss due to absorption, scattering, and reflection) also increases.
This limits penetration but improves resolution for superficial structures.
According to sonography instrumentation reference:
"Attenuation increases directly with frequency, limiting penetration but enhancing resolution in superficial imaging." Therefore, the correct answer is C: Attenuation.
-

NEW QUESTION # 187
What artifact is indicated by the arrows in the image below?
An ultrasound image of a fetus Description automatically generated

A. Enhancement
B. Grating lobe
C. Ring down
D. Refraction

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The image shows a bright, continuous, vertical band extending from a gas-containing structure (seen at the top). This is characteristic of ring down artifact, which occurs when multiple small gas bubbles resonate and create continuous echoes below the structure.
According to sonography instrumentation reference:
"Ring down artifact results from resonance of gas bubbles, producing a continuous series of echoes distal to the source. It appears as a bright, vertical band that does not fade with depth." Therefore, the correct answer is A: Ring down.
-

NEW QUESTION # 188
......

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Test ARDMS SPI Simulator Free | SPI Reliable Dumps Ebook

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ARDMS Sonography Principles and Instrumentation Sample Questions (Q183-Q188):

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