Test SPI Assessment - Reliable SPI Test Cost

Do you want to pass your Sonography Principles and Instrumentation exam? If so, FreeCram is the ideal place to begin. FreeCram provides comprehensive SPI exam questions preparation in two simple formats: a pdf file format and an ARDMS SPI online practice test engine. If you fail your Sonography Principles and Instrumentation (SPI) Exam, you can obtain a full refund and a 20% discount! Continue reading to discover more about the essential aspects of these excellent SPI exam questions.

We believe our SPI exam questions will meet all demand of all customers. If you long to pass the exam and get the certification successfully, you will not find the better choice than our SPI preparation questions. Now you can have a chance to try our SPI study braindumps before you pay for them. There are the free demos on our website for you download to check the quality and validity of our SPI practice engine. Just have a try, then you will fall in love with our SPI learning quiz!

>> Test SPI Assessment <<

Reliable SPI Test Cost & SPI Frequent Updates

FreeCram beckons exam candidates around the world with our attractive characters. Our experts made significant contribution to their excellence. So we can say bluntly that our SPI simulating exam is the best. Our effort in building the content of our SPI study materials lead to the development of learning guide and strengthen their perfection. To add up your interests and simplify some difficult points, our experts try their best to design our SPI Study Material and help you understand the SPI learning guide better.

ARDMS Sonography Principles and Instrumentation Sample Questions (Q160-Q165):

NEW QUESTION # 160
Which resolution is improved by focusing?

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

Answer: B

Explanation:
Focusing improves lateral resolution in ultrasound imaging. Lateral resolution refers to the system's ability to distinguish between two points that are side by side (perpendicular to the sound beam's path). By focusing the ultrasound beam, the width of the beam is narrowed at the focal point, enhancing the system's ability to resolve structures that are close together in the lateral plane. This results in clearer, more detailed images of the anatomical structures.
Reference:
American Registry for Diagnostic Medical Sonography (ARDMS) Sonography Principles and Instrumentation study materials.
Diagnostic Ultrasound: Principles and Instruments by Kremkau, F. W. (latest edition).

NEW QUESTION # 161
Based on the table in this image, what is the sensitivity?
A white square with black numbers and a white square with black numbers Description automatically

generated

A. 45/46
B. 45/48
C. 32/33
D. 32/35

Answer: D

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Sensitivity measures the test's ability to correctly identify true positives. It is calculated using the formula:
Sensitivity = True Positives / (True Positives + False Negatives)
From the table:
* True Positives (TP) = 32 (Noninvasive test positive & Gold Standard positive)
* False Negatives (FN) = 3 (Noninvasive test negative but Gold Standard positive) Thus:
Sensitivity = 32 / (32 + 3)
Sensitivity = 32 / 35
According to sonography instrumentation reference:

NEW QUESTION # 162
Which factor affects lateral resolution in ultrasound?

A. Wavelength
B. Depth of penetration
C. Beam width
D. Propagation speed

Answer: C

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Lateral resolution is the system's ability to distinguish two structures side-by-side. It is directly determined by the beam width - the narrower the beam, the better the lateral resolution.
Principles and Instrumentation:
"Lateral resolution depends on beam width at a given depth. Narrower beams provide better lateral resolution."
* Depth of penetration influences maximum imaging depth.
* Propagation speed is largely constant in soft tissue.
* Wavelength affects axial resolution.
Therefore, the correct answer is A: Beam width.
-

NEW QUESTION # 163
Which artifact is caused by defects in the crystals of the transducer?

A. Dropout
B. Side lobe
C. Mirror image
D. Ringdown

Answer: A

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Defects in transducer crystals result in missing or weakened signals along the beam path produced by those elements, creating dropout. In array transducers, dropout typically appears as vertical or horizontal dark zones depending on which elements are affected.
According to sonography instrumentation reference:
"Crystal failure results in areas of signal dropout directly beneath the defective elements due to loss of transmitted or received signals." Therefore, the correct answer is D: Dropout.
-

NEW QUESTION # 164
A Doppler shift is 10,000 Hz at an angle of flow of 60 degrees. What is the Doppler shift at 0 degrees?

A. 10,000 Hz
B. 2,500 Hz
C. 20,000 Hz
D. 5,000 Hz

Answer: C

Explanation:
depends on the angle between the ultrasound beam and the direction of blood flow. The Doppler equation includes a cosine function of the angle of insonation (#). At 60 degrees, the cosine is 0.5, and at 0 degrees (parallel to the flow), the cosine is 1. Thus, if the Doppler shift is 10,000 Hz at 60 degrees, it would double to
20,000 Hz at 0 degrees because the cosine of 0 degrees is 1 (cos(0°) = 1) and the cosine of 60 degrees is 0.5 (cos(60°) = 0.5). The formula is: Doppler shift at 0 degrees = Doppler shift at 60 degrees / cos(60 degrees) =
10,000 Hz / 0.5 = 20,000 Hz.
References:ARDMS Sonography Principles and Instrumentation (SPI) Review, Doppler Shift and Angle of Insonation section.

NEW QUESTION # 165
......

Our experts are researchers who have been engaged in professional qualification SPI exams for many years and they have a keen sense of smell in the direction of the examination. Therefore, with our SPI study materials, you can easily find the key content of the exam and review it in a targeted manner so that you can successfully pass the SPI Exam. We have free demos of the SPI exam materials that you can try before payment.

Reliable SPI Test Cost: https://www.freecram.com/ARDMS-certification/SPI-exam-dumps.html

The preparation material of FreeCram Reliable SPI Test Cost is available in 2 easy-to-use formats, PDF and practice test software formats, ARDMS Test SPI Assessment The candidates should also learn about the analog and digital voice circuits in this section, ARDMS Test SPI Assessment What do you have to lose, ARDMS Test SPI Assessment To choose a study material is better than you to attend the test twice and spend the expensive cost for double.

Although the functionality is powerful, the SPI code needed to load a page behind the scenes is actually pretty simple, High quality and accurate of SPI pass guide will be 100% guarantee to clear your test and get the certification with less time and effort.

Quiz 2025 ARDMS High Pass-Rate SPI: Test Sonography Principles and Instrumentation Assessment

The preparation material of FreeCram is available in 2 easy-to-use formats, SPI Frequent Updates PDF and practice test software formats, The candidates should also learn about the analog and digital voice circuits in this section.

What do you have to lose, To choose a study material SPI Exam Materials is better than you to attend the test twice and spend the expensive cost for double, So far we have helped more than 8456 candidates pass exams; the pass rate of our SPI Exam Collection is high to 99.26%.