Sonography Principles and Instrumentation: SPI Exam Premium File as PDF & Test Engine

The SPI exam, officially titled Sonography Principles and Instrumentation, is the qualifying test for the ARDMS SPI certification from ARDMS, a credential at the Mid-Level level. Passing it proves you have the skills employers look for in certified professionals, and it can also support progress toward related credentials such as Registered Diagnostic Medical Sonographer (RDMS).

The ARDMS Sonography Principles and Instrumentation exam gives you 120 minutes to work through 110 questions. That is a steady pace with little room for second-guessing, so train yourself to read each question once, flag the difficult ones, and keep moving. Before exam day, sit at least two full timed sessions in the Fast2test test engine — when the clock feels familiar, it stops being a threat.

You need 555 to pass, and the official registration fee is $250 USD. Fall short and you pay that fee in full again for every retake, which makes solid preparation the cheaper option by far. Work through the Fast2test practice questions until you score comfortably above the passing mark, then book your seat.

No specific prerequisite exam required; however, candidates must meet ARDMS clinical experience or educational eligibility requirements (typically completion of a diagnostic medical sonography program or specified clinical hours). Eligibility rules can change over time, so before you register, confirm the latest requirements on the official exam page: ARDMS SPI exam overview.

Yes. Fast2test offers a free PDF demo for the ARDMS Sonography Principles and Instrumentation exam so you can judge the quality of our questions and answers before paying anything. Every purchase also comes with 365 days of free updates, and once that period expires you can extend your update service at a 50% discount.

Your purchase is protected by a 100% money-back guarantee. If you sit the corresponding SPI exam within 60 days of buying and do not pass, send us a scan of your exam enrollment slip together with your official Score Report (PDF) within 2 days of the exam date — the candidate name must match the payer's name — and we will process your full refund within 7 days. Please note that exams taken within 3 days of purchase, materials downloaded without ever sitting the exam, free products, and expired orders are not covered. If you would rather not have a refund, you can exchange your order for two exam products of equal value, free of charge, and keep the update service on your original purchase.

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The ARDMS Sonography Principles and Instrumentation syllabus is organized into 5 domains. The main areas include Pulse-Echo Instrumentation (20%), Doppler Instrumentation (20%), and Quality Assurance and Safety (20%). Scroll up to the Exam Topics section above for the complete, current outline before you plan your study schedule.