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ARDMS SPI Dumps

Exam Code:
SPI
Exam Name:
Sonography Principles and Instrumentation
Last Update: Jan 13, 2026
187 Questions with Explanation
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SPI FAQs

The SPI exam, or Sonography Principles and Instrumentation exam, is a test that checks how well you understand the physics and technology behind ultrasound. It’s about the “science and tools” of sonography, not scanning patients dire

Anyone who wants to become a registered ultrasound professional (through ARDMS) usually needs to pass the SPI Exam. It’s one of the first steps toward certification in areas like abdominal, obstetric, or vascular sonography.

The SPI Exam covers these main areas:

→ Ultrasound Physics – sound wave behavior, propagation, reflection, attenuation, and interactions with tissues.
→ Transducers – types, construction, frequency, and maintenance.
→ Image Optimization – gain, depth, time-gain compensation, harmonic imaging, and artifact management.
→ Doppler Principles – pulsed, continuous wave, color, power Doppler, Doppler angle, aliasing, and waveform analysis.
→ Safety and Quality Assurance – infection control, ergonomic practices, machine calibration, and equipment testing.

These topics focus on understanding how ultrasound works and how to create accurate images safely.

The best way to prepare is by practicing with real exam-style questions. Dumpspedia offers updated SPI dumps and practice tests that mirror the actual exam format. Studying with these resources helps you understand tricky concepts, get used to the question style, and improve your speed so you feel more confident on test day.

Once you pass SPI, it never expires and counts toward every ARDMS specialty you pursue later (Adult Echo, Breast, Fetal Echo, etc.). Many sonographers get 3–5 credentials over their career – having SPI done early saves months/years of re-testing and opens doors faster.

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SPI Last Week Results!

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Customers Passed
ARDMS SPI

94%

Average Score In Real
Exam At Testing Centre

86%

Questions came word by
word from this dump

Sonography Principles and Instrumentation Questions and Answers

Questions 1

What device is used to determine axial resolution?

Options:

A.

Tissue-mimicking phantom

B.

Hydrophone

C.

Beam profiler

D.

Doppler phantom

Questions 2

What does changing the displayed depth control directly affect?

Options:

A.

Pulse repetition frequency

B.

Transducer transmit frequency

C.

Pulse duration

D.

Spatial pulse length

Questions 3

What is the result of increased transducer damping?

Options:

A.

Longer pulse length

B.

Increased sensitivity

C.

Narrow beam width

D.

Improved axial resolution

What our customers are saying

Argentina
Capri Young
Nov 3, 2025

These dumps were highly accurate and helpful. I was struggling with pulsed wave Doppler and aliasing, but the clear explanations here made it click. The practice tests also thoroughly covered safety (ALARA principle) and system controls. This resource was well worth it for my SPI success.