Professional & Trading
ARDMS SPI Exam Prep — 120 Flashcards + Free Mock
$11 / 120-card ARDMS SPI Anki (physics, transducers, Doppler, artifacts/safety) + 60Q / 75 min diagnostic (free 25-question version) from a 120 unique bank — official SPI is ~110Q / 2h / scaled 555. Text/physics only; ≠ ABD/OB.
One-time purchase · .apkg for Anki (desktop, AnkiMobile, AnkiDroid) · instant download via Gumroad
Not ready to buy? Take the free 25-question diagnostic →
23 people have purchased this deck. Recent UniPrep2Go checkout activity — not an official exam board figure.
Exam version & sources
ARDMS Sonography Principles & Instrumentation (SPI)— what this product is (and isn't)
- Exam version
- Current ARDMS SPI content outline — verify at ardms.org
- Official source
- ARDMS — SPI examination
- Last reviewed
- August 6, 2026
- What this covers
- 120 cards — Ultrasound physics basics; Transducers & beam formation; Doppler & hemodynamics; Artifacts, quality & safety
- Does not replace
- Independent study aid — it does not replace official ARDMS / Inteleos materials, practice exams, or required training.
Free practice test
Free ARDMS SPI Practice Test 2026 | 25Q Free, 60Q Timed
ARDMS SPI knowledge diagnostic — 60-question timed check (free 25-question version) with topic scoring and a readiness report before you buy the deck. It checks what you know; it is not a copy of the official exam format.
Take the free 25-question diagnosticSample cards
A thin vessel appears and disappears as you rock the probe slightly out of plane. Which beam property most limits that elevational (slice-thickness) detail?
Correct: (a) Lens and aperture geometry, which set beam thickness with depth Elevational resolution depends on beam thickness perpendicular to the scan plane, largely set by the lens and aperture geometry rather than axial pulse length or PRF.
A spectral waveform appears below the baseline after the probe orientation and steering are changed. Before reporting a true flow-direction change, what should the operator verify?
Correct: (d) Check spectral invert, beam steering, angle geometry, and a known reference direction Spectral polarity depends on motion relative to the beam and on display inversion. Verifying invert, steering, angle geometry, and a known reference direction separates a setup change from a genuine reversal without making a clinical diagnosis from display polarity alone.
A smooth liver capsule much larger than the wavelength returns a bright echo mainly when the beam is nearly perpendicular. That geometry is best described as:
Correct: (b) Specular reflection from a large, smooth interface Specular reflection occurs at large, smooth interfaces; strongest return is near normal incidence with i = r. Diffuse scatter redirects energy in many directions.
Ready to drill with the full deck?
Instant .apkg download after Gumroad checkout.
Get 120-Card ARDMS SPI Deck — $11 USDProduct facts
- Cards
- 120
- Coverage
- Ultrasound physics basics; Transducers & beam formation; Doppler & hemodynamics; Artifacts, quality & safety
- Format
- .apkg
- Price
- $11 USD
- Checkout
- Gumroad
- Exam cycle
- Current exam cycle
- Delivery
- Digital .apkg through Gumroad (instant download)
Coverage by exam topic
| Topic | Exam weight | Cards |
|---|---|---|
| Ultrasound physics basics | Diagnostic topic (equal mock share — not official domain weight) | 30 |
| Transducers & beam formation | Diagnostic topic (equal mock share — not official domain weight) | 30 |
| Doppler & hemodynamics | Diagnostic topic (equal mock share — not official domain weight) | 30 |
| Artifacts, quality & safety | Diagnostic topic (equal mock share — not official domain weight) | 30 |
Exam facts
ARDMS Sonography Principles & Instrumentation (SPI)
The ARDMS Sonography Principles & Instrumentation (SPI) exam is the ultrasound physics and instrumentation gate for most ARDMS specialty credentials. Official sittings are about 110 multiple-choice questions in 2 hours with a scaled passing score of 555 on a 300–700 scale (Inteleos). UniPrep2Go products are independent text/physics prep (no image-interpretation items) and are not ARDMS exams. ABD/OB specialty exams are separate.
- Questions
- About 110 multiple-choice questions (verify current bulletin)
- Time
- 2 hours
- Passing score
- Scaled 555 (verify current ARDMS/Inteleos score report rules)
- Scoring
- Scaled 300–700 (Inteleos)
- Delivery
- Pearson VUE test center or other Inteleos-scheduled delivery — confirm when you book
- Administered by
- ARDMS / Inteleos
Knowledge domains and weights
| Domain | Official weight |
|---|---|
| Ultrasound physics basics | UniPrep mock 25% (session 15 of 60; bank 30 of 120) |
| Transducers & beam formation | UniPrep mock 25% |
| Doppler & hemodynamics | UniPrep mock 25% |
| Artifacts, quality & safety | UniPrep mock 25% |
What changed in the current exam cycle
- Confirm current SPI item count, time, and scaled pass in the live ARDMS/Inteleos bulletin — third-party blogs still quote older forms.
- SPI remains physics/instrumentation; image-heavy ABD/OB specialty exams are separate ARDMS sittings.
- UniPrep Anki is live at $11 / 120 unique cards paired with a 60Q timed diagnostic (free 25-question version) from the same 120 bank.
High-yield facts (commonly tested)
- Official SPI ≈ 110 Q / 2 h / scaled 555; UniPrep’s check is 60 Q / 75 min / 70% from a 120 unique bank (free 25-question version).
- Propagation speed c = fλ; acoustic impedance Z = density × speed.
- Spatial pulse length = n × λ; axial resolution ≈ SPL/2.
- Doppler shift fd = 2 v f0 cosθ / c; shift ≈ 0 at 90°.
- Mechanical index tracks cavitation risk; thermal index tracks heating (ALARA).
Common ARDMS Sonography Principles & Instrumentation (SPI) questions
Straight answers to the questions candidates usually search before buying prep or booking the exam.
How many questions are on the ARDMS SPI exam?
About 110 multiple-choice questions in 2 hours. The scaled passing score is 555 on a 300–700 scale. UniPrep’s check is a shorter 60-question / 75-minute diagnostic (free 25-question version) drawn from a 120 unique bank.
Is UniPrep’s SPI check the official ARDMS exam?
No. The 60-question check (free 25-question version) is independent text/physics practice. The matching Anki deck is a live $11 / 120-card .apkg on Gumroad. Not ARDMS/Inteleos material.
Does SPI include ABD or OB image items?
No. SPI is physics and instrumentation. Abdominal and OB/GYN image interpretation are separate ARDMS specialty exams.
Verify current exam fees, scheduling, and administrative details at www.ardms.org/get-certified/spi/. Independent study aid — not official exam material.
More about ARDMS SPIStudy tips, positioning, and how this deck compares
ARDMS SPI ultrasound physics exam prep
$11 ARDMS SPI Anki (120 unique cards) for ultrasound physics, transducers/beam, Doppler, and artifacts/safety. 60-question / 75-minute readiness check (free 25-question version) from the same 120 bank; official SPI is about 110 questions / 2 hours / scaled 555. Text/physics only — not ABD/OB image interpretation.
Built for: Candidates preparing for the ARDMS SPI pathway who want spaced repetition after a free timed readiness check.
Covers: Ultrasound physics basics; Transducers & beam formation; Doppler & hemodynamics; Artifacts, quality & safety.
- Spaced-repetition flashcards
- 120 exam-focused flashcards
- Topic coverage table and samples on this page
- Linked 60-question practice test (free 25-question version)
How this deck compares
OpenExamPrep 124+ no-signup banks and Mometrix volume own length. UniPrep wins when you want a timed 60Q physics diagnostic (free 25-question version) with topic scoring plus an ownable $11 / 120-card Anki — not a full 110-item SPI form and not an image-heavy specialty bank.
| Approach | Typical size | Tradeoffs |
|---|---|---|
| Free community decks | 1,000–3,000 |
|
| Budget mega-packs | 1,000+ |
|
| This deck | 120 exam-focused flashcards |
|
ARDMS SPI study guide
What this page is
A **$11 / 120**-card ARDMS SPI Anki (ultrasound physics, transducers & beam, Doppler & hemodynamics, artifacts/quality/safety) paired with a **live 60-question** timed readiness check (free 25-question version) drawn from a **120 unique** bank — so Mock Pass retakes are not the same 60 stems shuffled.
SPI vs ABD / OB
SPI is **physics and instrumentation**. It is **not** the ARDMS Abdominal or OB/GYN specialty exams (image interpretation). Cards stay text/physics: formulas, beam formation, Doppler, artifacts, and ALARA — not organ image dumps.
Official form honesty
Official SPI is about **110 multiple-choice questions / 2 hours / scaled pass 555 (300–700)**. UniPrep’s check is a shorter **60Q / 75 min / 70%** diagnostic (free 25-question version) from the same 120 bank — not a full SPI form.
Plan with the free mock
**Start:** Take the [free ARDMS SPI readiness check](/mock-exams/ardms-spi-readiness-check). Use the topic report to prioritize study. **Then:** drill weak rows in this Anki deck (15–20 cards/day).
Pitfalls this deck targets
Candidates confuse SPL with axial resolution, treat 90° Doppler as a strong shift, mix MI with TI, or sit ABD image items thinking they are SPI. Cards force physics judgment under spaced recall.
What this does not replace
ARDMS/Inteleos registration or a full 110-item sitting. Independent prep — not ARDMS material.
ARDMS Sonography Principles & Instrumentation (SPI) & product FAQ
How many questions are on the ARDMS SPI exam?
About 110 multiple-choice questions in 2 hours. The scaled passing score is 555 on a 300–700 scale. UniPrep’s check is a shorter 60-question / 75-minute diagnostic (free 25-question version) drawn from a 120 unique bank.
Is UniPrep’s SPI check the official ARDMS exam?
No. The 60-question check (free 25-question version) is independent text/physics practice. The matching Anki deck is a live $11 / 120-card .apkg on Gumroad. Not ARDMS/Inteleos material.
Does SPI include ABD or OB image items?
No. SPI is physics and instrumentation. Abdominal and OB/GYN image interpretation are separate ARDMS specialty exams.
Is there a free ARDMS SPI practice test?
Yes. Take the linked readiness check at https://uniprep2go.study/mock-exams/ardms-spi-readiness-check before you buy — topic scoring shows what to drill in the deck. Your first UniPrep2Go mock, including this ARDMS SPI one, is a free 25-question timed diagnostic (any exam, Exam or Learn mode, no signup); full-length mocks and retakes run on the $5 UniPrep2Go Mock Pass — 5 attempts on any mock.
Is this official exam material?
No. Independent UniPrep2Go study aid — not affiliated with or endorsed by ARDMS.
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