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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.

  1. What DXA is and what it measuresTwo energies, BMC, area and BMD
  2. Who should be scannedT-score or Z-score, WHO categories, FRAX®
  3. Patient preparationA one-minute pre-scan screening flow
  4. PositioningSpine, hip and forearm, with real images
  5. ArtifactsWhat raises BMD and what to do about it
  6. Scan analysisVertebral labeling, exclusions, hip ROIs
  7. Real-image case reviewWhat we see, what to do, why
  8. VFA, TBS and other examsGenant grading, full femur, body composition
  9. Quality control, precision and LSCWith a worked LSC example
  10. Radiation safetyDoses in context, U.S. limits
  11. Reporting and terminologyPreferred terms and decimal places
  12. ChecklistsPrint-ready, for the console
  13. 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.

Positioning chapter page with a setup photo, a correctly positioned spine and a labeling diagram
PositioningSetup photo, a correct spine and labeling landmarks.
Case review page showing a rotated spine, contrast and a foreign body over a vertebra
Real-image casesRotation, contrast, a foreign body over L3.
Worked LSC example with three follow-up scenarios
LSC, worked outThree follow-up scenarios, step by step.
Checklists page for before, during and after the scan
ChecklistsBefore, during and after the scan.

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.

Download the PDF

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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.