← BoneDensity Prep
What’s new in BoneDensity Prep
Release history of the question bank, newest first. Each release lists how many questions were added or revised by ISCD CBDT® domain and ARRT® BD category, and the published documents it is based on.
v2.1October 2026LATEST
95 new questions: quality control, DXA scanning and TBS
95 new original questions focused on the areas the ARRT BD exam weighs most: equipment and quality control, and DXA scanning, plus a full set on trabecular bone score. Each new question is tagged to both the ISCD CBDT outline and the ARRT BD categories, so it appears in both practice modes.
- 648questions in total
- +95added
- 0revised
ISCD CBDT® outline
| Domain | Questions | Added |
|---|
| Bone Concepts | 164 | — |
| Radiation Safety and Science | 59 | — |
| Technology and Equipment | 138 | +31 |
| Scan Acquisition | 78 | +15 |
| Scan Analysis | 156 | +49 |
| Patient Care supplement | 53 | — |
ARRT® BD categories
| Category | Questions |
|---|
| Patient Care | 195 |
| Image Production | 258 |
| Procedures | 195 |
Topics covered
- Quality control: phantom scans, control charts and shifts, tube or detector replacement, adding a second scanner
- Precision and LSC with worked calculations: RMS-SD, %CV, LSC in % and g/cm², combined precision of two technologists, timing of follow-up
- Cross-calibration thresholds
- Lumbar spine, hip and forearm positioning and regions of interest
- Artifacts and vertebral exclusion
- VFA indications and Genant grading
- Calculating T-scores and Z-scores, and reporting
- Trabecular bone score (45 questions): who it applies to, L1–L4 acquisition, artifacts, TBS-adjusted FRAX, and what TBS should not be used for
Based on
v2.0October 2026
553 questions and a new ARRT BD mode
The question bank grew from 181 to 553 original questions. Every question is now mapped to both the ISCD CBDT content outline and the ARRT Bone Densitometry content specifications, and the trainer gained an ARRT-style practice mode.
- 553questions in total
- +372added
- 0revised
ISCD CBDT® outline
| Domain | Questions | Added |
|---|
| Bone Concepts | 164 | +127 |
| Radiation Safety and Science | 59 | +34 |
| Technology and Equipment | 107 | +78 |
| Scan Acquisition | 63 | +34 |
| Scan Analysis | 107 | +69 |
| Patient Care supplement | 53 | +30 |
ARRT® BD categories
| Category | Questions |
|---|
| Patient Care | 195 |
| Image Production | 191 |
| Procedures | 167 |
Topics covered
- Precision assessment and least significant change, with worked calculations
- Quality control, phantoms, control charts, cross-calibration
- VFA indications, TBS, full-length femur imaging and atypical femoral fractures
- FRAX inputs and treatment thresholds
- Current osteoporosis drugs: bisphosphonates, denosumab, abaloparatide, romosozumab
- Medicare coverage (BMMA) and CPT codes 77080, 77085, 77086
- Patient care and safety: transfers, fall prevention, infection control, pregnancy screening
- Informatics: DICOM, PACS, HIS/RIS/EMR, archiving
- Forearm (33% radius), spine labeling and vertebral exclusion, hip positioning
In the trainer
- New switch to practice by ISCD CBDT domains or by ARRT BD categories
- New ARRT BD-style exam simulation: 75 questions weighted 17 / 20 / 38, 90-minute practice timer, score report with an estimated 1–99 scaled score
- Phone layout fixes
Corrections
- Before publication, answer keys that were wrong in our working draft were corrected, for example the mean of the T-score scale (0), the minimum number of vertebrae for diagnosis (two), the VFA imaging range (T4–L4) and fan-beam versus pencil-beam scan time.
Based on
v1.1October 2026
New home at /dexa/ and personal license keys
An update of the trainer itself; the questions did not change.
- 181questions in total
- +0added
- 0revised
In the trainer
- The trainer moved to digitaltrainingprep.com/dexa/, next to CT Tech Prep
- Each purchase now gets a personal license key (DEXA-XXXX-XXXX-XXXX), shown after checkout and emailed; one device at a time, movable with “Deactivate on this device”
- Buyers from before license keys keep their access
v1.0September 2026
BoneDensity Prep launches online
First online release with 181 original questions organized by the five ISCD CBDT content domains plus a patient care supplement.
- 181questions in total
- +181added
- 0revised
ISCD CBDT® outline
| Domain | Questions | Added |
|---|
| Bone Concepts | 37 | +37 |
| Radiation Safety and Science | 25 | +25 |
| Technology and Equipment | 29 | +29 |
| Scan Acquisition | 29 | +29 |
| Scan Analysis | 38 | +38 |
| Patient Care supplement | 23 | +23 |
In the trainer
- Study by domain with instant feedback, explanations and source links
- 150-question CBDT-style exam simulation (210 minutes) with a score report
- Free demo: Bone Concepts
- September 18: the “Begin simulation” button was fixed
Based on
Questions are original study material aligned with the published content outlines and official positions listed above; they are not actual examination items. ARRT® and ISCD® are trademarks of their owners. Digital Training Courses is not affiliated with or endorsed by them.
