2024-2025 STUDIED - Bone Densitometry - Scan Analysis ,Role of the
Technologist,Radiation Science and Safety Quiz
What artifacts can cause elevated BMD?
Pathology such as scoliosis or fracture
Sclerosis
External artifacts
All the above - Answer All the above
When performing a follow up (serial) scan, the technologist should use the compare or
copy feature in the scanner's software.
True
False - Answer True
Once the scan is complete, the technologist can allow the automated analysis feature to
perform scan analysis, with no need to review the scan.
True
False - Answer False
All serial scans must be consistent with the baseline scan. What extra step must be
taken to insure an accurate follow up hip scan?
Follow up scan should always be performed on fast scan mode.
It is not necessary to use the copy or compare function when doing serial hip scans
The femur rotation, shaft and centering must match the baseline scan as closely as
possible
The neck box is not used in subsequent scans - Answer The femur rotation, shaft and
centering must match the baseline scan as closely as possible
,What is the primary concern with scans that yield falsely elevated BMD?
There may be underlying pathologies that need attention
False BMD elevations can mask osteoporosis
False BMD readings are not possible
False BMD readings indicate a technical problem with the scanner - Answer False BMD
elevations can mask osteoporosis
What region of the forearm has the most cortical bone?
10% UD
The entire forearm
33%, approximately mid-forearm
The forearm is composed of trabecular bone - Answer 33%, approximately mid-forearm
When analyzing a hip scan, when should the technologist manipulate the bone edges
and neck box?
The bone edges and neck box should be manually manipulated every scan
Only the bone edges should be manipulated after each scan
Only when necessary and always according to the manufacturer's specifications
Absolutely never - Answer Only when necessary and always according to the
manufacturer's specifications
The NHANES III database includes both PA spine and proximal femur sites.
True
False - Answer False
This statement is false. The NHANES III only contains proximal femur skeletal site. The
data gathered in this database is used as a reference population in the DXA computer
software.
How many numbers should follow the decimal place (to the right) when expressing BMD
, in a numerical value?²²²²²²²
One
Three
Two
Four - Answer Three
Baseline lumbar spine analysis must include:
Verified patient biographical information
Manual adjustment of gray-scale, brightness or contrast if needed
L1-L4 vertebrae must be clearly separated at the disc spaces and labeled correctly
All the above - Answer All the above
What is the purpose of the Bone Mass Measurement Act that was passed by Congress in
1997?
To legalize the use of dual-energy X-ray absorptiometry for bone density studies
The Act outlined the 5 circumstances in which Medicare would pay for bone
densitometry
The Act is another aspect of HIPAA
The Act outlines protocols for drug companies who manufacture treatment medicines -
Answer The Act outlined the 5 circumstances in which Medicare would pay for bone
densitometry
HIPAA mandated that protected patient information remain protected co not apply to
bone density studies.
True
False - Answer False
This answer is false. HIPAA mandates all patient information remains protected. There
are no exceptions based on the type of medical care.
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