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Physics

The ARDMS Sonography Principles and Instrumentation (SPI) examination tests basic physical principles and instrumentation knowledge. Passing this exam is a requirement for the RDMS, RDCS, and RVT credentials. Sonography professionals who seek an ARDMS credential are required to pass both the SPI examination and a corresponding specialty examination within five years. Once the SPI exam is passed, applicants may earn multiple credentials without having to repeat a physical principles and instrumentation exam.

Davies offers an SPI mock exam in book form or on CD or by download—Ultrasound Physics Review, Ultrasound Physics Interactive Mock Exam on CD, and Ultrasound Physics Interactive Mock Exam (Download). We also have textbooks for further study.

If you are looking for guidance and a clear understanding of the principles and facts you must know to pass the SPI exam, the Davies mock exam is the one for you.

"I have been doing ultrasound since 2004 but was afraid to take the SPI exam until my job forced me to in 2011. I purchased your CD-ROM and used it to study every day as the test got closer. I am happy to report that I passed with a score of 647 out of 700 on my first try! Thank you so much for providing such a wonderful product! I am purchasing all of my review materials from you in the future."—Erin Brooks, RVT

"The explanations are excellent. The entire CD is well organized. I will certainly recommend this product. There is an ample amount of information with detailed explanations. Thank you for a great product."—Judy Leigh, RDMS

"Ultrasound Physics Review contained a wider scope of questions than the other review book I had. I liked the format and the explanations. This book helped me pass the SPI exam. It covered things my other study book didn't and asked questions in a different manner. A great purchase! I would recommend it to anyone." —Petra Wilson, RT(R), RDMS, RVT

"Explanations given for each question helped immensely."—Curtis L. Baumann, RDCS

Ultrasound Physics Interactive Mock Exam (Download)
An Interactive Q&A Review for the ARDMS/APCA SPI Exam
Version 4.1 Download


Ultrasound Physics Interactive Mock Exam (Download)
Cindy A. Owen, RVT, RDMS, FSDMS
James A. Zagzebski, PhD

Exam: Sonography Principles & Instrumentation
Step 2: Mock Exam
CME Credits: 15
ISBN: 9780941022781
Format: Download
Catalog No: 11053-DL
Price: $99.95

More Details2
Specials | Readers' Comments | Reviews | Contents | Sample | Cover
Ultrasound Physics Interactive Mock Exam (CD-ROM)
An Interactive Q&A Review for the ARDMS/APCA SPI Exam
Version 4.1 CD-ROM


Ultrasound Physics Interactive Mock Exam (CD-ROM)
Cindy A. Owen, RVT, RDMS, FSDMS
James A. Zagzebski, PhD

Exam: Sonography Principles & Instrumentation
Step 2: Mock Exam
CME Credits: 15
ISBN: 9780941022781
Format: CD-ROM
Catalog No: 11053-DISC
Price: $129.95

More Details2
Specials | Readers' Comments | Reviews | Contents | Sample | Cover
Ultrasound Physics Review
A Q&A Review for the ARDMS SPI Exam

Ultrasound Physics Review
Cindy A. Owen, RVT, RDMS, FSDMS
James A. Zagzebski, PhD

Exam: Sonography Principles & Instrumentation
Step 2: Mock Examination
CME Credits: 12
ISBN: 9780941022743
Format: Comb-bound
Catalog No: 11030
Price: $59.95

Specials | Readers' Comments | Reviews | Contents | Sample | Cover
Vascular Physics Review
A Q&A Review for Vascular Physics

Vascular Physics Review
Barton A. Bean, RVT, FSVU
Cindy A. Owen, RVT, RDMS, FSDMS
Donald P. Ridgway, RVT
Sergio X. Salles-Cunha, PhD, RVT, FSVU
James A. Zagzebski, PhD

Step 2: Mock Examination
CME Credits: EXPIRED 11/10/17
ISBN: 9780941022545
Format: Comb-bound
Catalog No: 11031
Price: $55.00

Specials | Readers' Comments | Reviews | Contents | Sample | Cover
Sonography Principles and Instruments
10th Edition

Sonography Principles and Instruments
Frederick W. Kremkau, PhD

Step 1: Review Text
ISBN: 9780323597081
Format: Hardcover
Catalog No: 18010
Price: $122.99

Specials | Readers' Comments | Reviews | Contents | Sample | Cover
Vascular Technology and Ultrasound Physics SPI Bundle
Vascular Technology and Ultrasound Physics SPI Bundle

Exam: Vascular
CME Credits: 45
Format: Book and 2 CD-ROMs
Normally: $359.85
Catalog No: Vasc-SPI-Bundle
Price: $323.85

More Details2
Specials | Readers' Comments | Reviews | Contents | Sample | Cover
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Many folks get the opportunity to take the Ultrasound Sonography Principles and Instrumentation (SPI) exam more than once. Mention physics to some sonographers and their expression tells you that you might as well have said "quantum mechanics" or "regression analysis." Perhaps this describes you. Certainly, fear of physics is common among registry candidates. So is taking the exam more than once.

For frustrated sonographers who want to put this test behind them, we join thousands of successful candidates and educators in recommending the Ultrasound Physics (SPI) Mock Exam by Cindy Owen, RT, RVT, RDMS.


In it Cindy frequently refers to two of our favorite physics texts, Ultrasound Physics and Instrumentation by Wayne Hedrick, David Hykes and Dale Starchman, and Sonography: Principles and Instruments by Frederick Kremkau. Any of them will help you tremendously, especially in combination with the Ultrasound Physics Mock Exam.

How do you know which one will be best for you? Match your learning style and interests with the style, features, and level of difficulty of the book.
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