ARRT BONE DENSITY EXAM STUDY SET COMPLETE ANSWERS 100% CORRECT (LATEST 2025 / 2026 )

1. Cancellous bone is also known as ?: Trabecular bone
2. How would you start labeling the vertebral bodies on a PA lumbar scan?-
: Start at L4 and count/label up
3. With changesin rotation of the femoral neck,what happens?: IncreasestheBMD
4. If daily QC fails, what should be your first step of action?: -repeat the scan
-if scan fails again, then call for help
5. Although the technology is similar with all of the DXA units, the BMDresults are
different because..........:
-different calibration standards
-algorithms to calculate BMD
-differences in the ROI
-different databases
6. The primary mechanism of action of antiresorptive therapies is the directinteraction with
the : osteoclasts
7. Which site is preferred for determination of fracture prediction?: proximalfemur
8. What is one disease not associated with low BMD?: osteopetrosis
9. DXA results may be influenced by.........:
-body thickness
-degenerative changes
-fractures
-scan mode
10. A great forearm scan should include.......: -forearm centered
-forearm straight