Quiz ARDMS - Newest SPI Practice Test Online

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ARDMS SPI Exam Syllabus Topics:

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

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You can access the premium PDF file of ARDMS SPI dumps right after making the payment. It will contain all the latest SPI exam dumps questions based on the official ARDMS exam study guide. These are the most relevant ARDMS SPI questions that will appear in the actual Sonography Principles and Instrumentation exam. Thus you won’t waste your time preparing with outdated ARDMS SPI Dumps. You can go through ARDMS SPI dumps questions using this PDF file anytime, anywhere even on your smartphone.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q73-Q78):

NEW QUESTION # 73
What is the most effective way to reduce aliasing on color Doppler?

A. Increase pulse repetition frequency (PRF)
B. Decrease wall filter
C. Increase wall filter
D. Decrease pulse repetition frequency (PRF)

Answer: A

Explanation:
Aliasing in color Doppler occurs when the velocity of blood flow exceeds the Nyquist limit, which is half the PRF. To reduce aliasing, the PRF must be increased. This raises the Nyquist limit, allowing higher velocities to be measured without wrapping around the baseline. Increasing PRF reduces the occurrence of aliasing artifacts by expanding the range of detectable velocities before aliasing occurs.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Kremkau FW. Sonography Principles and Instruments. 9th ed. Philadelphia, PA: Elsevier; 2016.

NEW QUESTION # 74
Which unfocused transducer will have the greatest divergence?

A. 6 mm aperture, 6 MHz
B. 4 mm aperture, 4 MHz
C. 6 mm aperture, 4 MHz
D. 4 mm aperture, 6 MHz

Answer: B

Explanation:
Transducer beam divergence is influenced by the aperture size and frequency. A smaller aperture and lower frequency result in greater beam divergence. Among the given options, the transducer with a 4 mm aperture and 4 MHz frequency will have the greatest divergence. This is because the smaller aperture size contributes to a wider beam spread, and the lower frequency also increases the divergence compared to higher frequencies.
Reference:
ARDMS Sonography Principles and Instrumentation guidelines
Kremkau, F. W. (2015). Diagnostic Ultrasound: Principles and Instruments. Elsevier.

NEW QUESTION # 75
Which adjustment is needed to optimize the waveform below?

A. Lower baseline
B. Increase pulse repetition frequency
C. Increase wall filter
D. Decrease gain

Answer: A

Explanation:
The waveform in the image shows spectral Doppler signals that are pushed against the upper limit of the display, indicating that the baseline is too high. Lowering the baseline allows for a better visual representation of the entire Doppler signal within the available display range. This adjustment prevents the waveform from being cut off and helps in accurately interpreting the blood flow characteristics.
Reference:
ARDMS Sonography Principles & Instrumentation Guidelines
Kremkau FW. Sonography Principles and Instruments. 9th ed. Philadelphia, PA: Elsevier; 2016.

NEW QUESTION # 76
Which resolution is degraded when utilizing multiple transmit focal zones?

A. Temporal
B. Axial
C. Lateral
D. Elevational

Answer: A

Explanation:
When utilizing multiple transmit focal zones, the ultrasound system must perform multiple transmissions at each focal depth. This process requires more time for data acquisition, which in turn decreases the frame rate. A lower frame rate directly impacts temporal resolution, which is the ability to accurately depict moving structures over time. Thus, using multiple focal zones improves lateral resolution but degrades temporal resolution.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation guidelines.

NEW QUESTION # 77
Which target group in this image of a tissue-mimicking phantom is used to evaluate axial resolution?

A. Option B
B. Option D
C. Option C
D. Option A

Answer: A

Explanation:
In the given image of a tissue-mimicking phantom, Option B (yellow box) is used to evaluate axial resolution. Axial resolution refers to the ability of the ultrasound system to distinguish between two structures that are close to each other along the path of the ultrasound beam (i.e., parallel to the beam). The targets in Option B are typically aligned in such a way to test the system's capacity to differentiate between structures that are situated closely together along the beam's axis. Reference:
ARDMS Sonography Principles and Instrumentation guidelines
"Sonography: Principles and Instruments" by Joan P. Baker and Marveen Craig

NEW QUESTION # 78
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