Free guide for future DXA technologists
The DXA Technologist’s Path
A practical starter guide: what to do before, during and after a bone density scan — and what the CBDT® exam expects.
- 25 pages
- PDF, 4 MB
- Edition 2.2, October 2026
- Free, CC BY 4.0
What the guide covers
Thirteen short chapters that follow the order of real work, from the first question you ask the patient to the report. Written in plain language and based on the 2023 ISCD Official Positions.
- What DXA is and what it measuresTwo energies, BMC, area and BMD
- Who should be scannedT-score or Z-score, WHO categories, FRAX®
- Patient preparationA one-minute pre-scan screening flow
- PositioningSpine, hip and forearm, with real images
- ArtifactsWhat raises BMD and what to do about it
- Scan analysisVertebral labeling, exclusions, hip ROIs
- Real-image case reviewWhat we see, what to do, why
- VFA, TBS and other examsGenant grading, full femur, body composition
- Quality control, precision and LSCWith a worked LSC example
- Radiation safetyDoses in context, U.S. limits
- Reporting and terminologyPreferred terms and decimal places
- ChecklistsPrint-ready, for the console
- The CBDT® exam and career pathFormat, domains, eligibility, steps
Plus eight practice questions with explained answers and a page of key terms.
Look inside
Every rule is shown on an image. Select a page to open it full size.
Who it’s for
- Radiologic technologists moving into bone densitometry.
- Allied health graduates preparing for the CBDT® exam.
- Educators who want a short, free handout for students.
Share it freely
The guide is published under CC BY 4.0. Print it, send it to classmates or use it in a course — just credit Digital Training Courses and link back to this page.
Ready to test yourself?
BoneDensity Prep turns the topics of this guide into exam-style practice across the five CBDT® domains, with an ARRT® BD-style mode too. Start with the free demo — no account needed.
Keep learning: a free DEXA question every week
Liked the guide? Get one exam-style DXA question by email each week, with the answer explained.
Independent resource. This guide is not affiliated with, sponsored by or endorsed by the International Society for Clinical Densitometry (ISCD). CBDT® is a certification mark of ISCD; FRAX® is a registered trademark of the University of Sheffield. It is educational material and does not replace manufacturer training, facility protocols, state requirements or a physician’s judgment.
Edition 2.2, October 2026. Sources are listed at the end of the PDF.

