Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

DXA Boards > ASRT Practice Boards > Flashcards

ASRT Practice Boards Flashcards

1
Q

Which of the following is a daily quality control test to check scanner performance?

A

phantom scanning

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The region of interest for vertebral fracture assessment scans includes the ____ through _____ vertebrae.

A

T4;L5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The region of interest for vertebral fracture assessment scans includes the ____ through _____ vertebrae.

A

T4;L5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many sets of sinuses are in the cranium?

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the two types of bone tissue generally found in long bones?

A

cortical and trabecular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The oldest bone cells of the skeleton live about how many years?

A

10 years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

An area of bone that contacts another bone is a(n)

A

articular surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why is the ‘standard anatomical position’ used?

A

To simplify descriptions of the location and orientation of bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When evaluating bone density, what statistical value is calculated by dividing the standard deviation by the mean?

A

CV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which of the following states is true about bone remodeling?

A

Bone mass increases when formation is faster than resorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Osteosarcomas (affect young or old people?)

A

affect primarily adolescents and young adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Osteoarthritis is characterized by:

A

osteophyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What condition can look similar to laminectomy on DXA scans?

A

Spina bifida occulta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Idiopathic scoliosis is treated…

A

with bracing or surgery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following biochemical marker indicate osteoblast activity?

A

Bone-specific alkaline phosphatase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

According to the National Osteoporosis Foundation, women over the age of 50 should take ____ IU of Vitamin D daily.

A

800 - 1,000 IU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Man-made versions of the calcitonin hormone are based on the hormone naturally produced in:

A

salmon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

_____ activate when RANK is combined with _____.

A

Osteoclasts; RANKL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The bisphosphonate medication Alendronate should be taken:

A

In the morning on an empty stomach.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

In addition to iodine-125, what radioactive isotope was used as the radiation source for dual photon absorpitiometry? (Think MRI)

A

gadolinium-153

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Bone-edge detection algorithms are:

A

proprietary to each manufacturer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the minimum distance a bone densitometry technologist should sit from the edge of the scanner table?

A

3 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Operator precision is assessed using:

A

an in vivo test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The patient questionnaire can be filled out after the scanning procedure (T/F).

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is the International System of Units (SI) expression for the roentgen?
coulomb per kilogram
26
The acronym rad stands for?
radiation absorbed dose
27
Which type of lead shielding is required for DXA exams?
no sheilding
28
What is the largest source of artificial radiation?
medical imaging equiptment
29
Somatic effects occur within _____ and common outcomes include_______.
the exposed individual; shortened life span and cancerous mutations
30
Which type of cell is more radiosensitive?
gonadal germ
31
Which type of radiation is NOT considered ionizing radiation?
infrared light
32
Female athlete triad syndrome commonly causes ____ in female athletes.
amenorrhea
33
Klinefelter syndrome affects 1 in every:
500 - 1000 men
34
Which disorder causes children's bones to become soft and weak?
rickets
35
FRAX should only be used on individuals between what ages?
40 - 90
36
Regarding glucocorticoid medication, what is the exposure that is considered a risk factor by FRAX?
5mg per day for 3 months
37
Is Spinal Stenosis a FRAX risk factor?
No
38
Daily consumption of _____ units of alcohol is considered a risk factor by FRAX.
3 units
39
FRAX consideres a previous fracture a risk factor if it was broken after what age?
40 years
40
All of the following are secondary osteoporosis disease processes which may cause bone loss or interfere with individuals reaching their peak bone mass, EXCEPT for:
type II diabetes
41
A fragility fracture can result from what kind of fall?
fall from a standing height, in the absence of other trauma
42
What is the minimum 10 year probability of a major osteoporotic fracture that suggests a diagnosis of osteoporosis?
20%
43
Should FRAX be calculated on those individuals who are on pharmacological therapy?
no
44
Two examples of bisphosphonate-based medications are:
Boniva and Actonel
45
Which of the following is a limitation of FRAX as described by the International Osteoporosis Foundation?
FRAX does not accommodate all known risk factors
46
The FRAX tool is accessible:
on a smartphone app
47
Only one-quarter of vertebral fractures go unreported (T/F).
False
48
What area do the most common osteoporosis-related fractures occur?
Spine (vertebral compression)
49
International Society for Clinical Densitometry (ISCD) recommendations state VFA imaging is indicated if the T-score is _____ and 1 other qualification is met.
less than -1
50
Using the Genant classification method, a severe vertebral fracture has a height reduction of ______.
40% or higher
51
Which terminology is an acceptable description of a vertebral fracture in a VFA report?
mild vertebral fracture
52
Which of the following is a criterion for an osteoporotic fracture diagnosis?
centrally conceived endplate depression
53
Which deformity typically manifests in adolescents and presents with remarkable kyphosis?
Scheuermann's disease
54
If a patient has an obvious compression fracture is that a reason for additional spine imaging?
No
55
If a vertebra is difficult to assess, contrast [as in visual contrast, not IV or oral ed.] and inversion tools may be used to locate vertebra position.
True
56
When is VFA imaging typically performed? (Separate or together with bone density testing?)
during bone mineral density testing
57
Why might a vertebra be excluded from the baseline analysis?
excessive joint hypertrophy (like arthritis) or metallic hardware
58
The total BMD is used to plot ______?
a reference curve
59
Is the iliac crest visualized in the ROI of a hip scan?
No, it is not
60
Is the femoral neck mostly cortical or trabecular bone?
mostly cortical bone
61
The joint between the radius and carpal bones must be visible on a forearm scan for accurate analysis. (T/F)
True
62
What is the preferred region of interest when scanning the forearm?
33%
63
Proper flexion of the patient's elbow during a dual-energy x-ray absorptiometry (DXA) scan of the forearm is _____ degrees.
90 to 105
64
What type of body composition analysis uses a two-compartment method?
bio-electrical impedance
65
What percentage of the American population is overweight?
62%
66
According to the 2015 ISCD official position statements, the minimum acceptable precision testing results for total fat mass should be within:
3%
67
Individuals with a high proportion of fat in the gyroid region of the hips and thighs are considered _____ shaped.
pear
68
What type of tissue is NOT included in lean body mass?
fat
69
What are the two types of calibration methods used by DXA scanners?
internal and external
70
A(n) _________ scanning technique estimates bone mineral density based on three-dimensional scans.
volumetric
71
______ measurements provide a radio to evaluate bone health that is independent of patient body habits.
Bone Mineral Density (BMD)
72
_____ is the measure of variability that shows how spread out data is around the mean.
Standard Deviation (SD)
73
The Third National Health and Nutrition Examination Survey developed a standardized reference database for T-scores of the ________.
hip
74
The MOST critical performance measure for follow-up scans and tracking of a patient's bone mineral density over time is:
precision
75
_________ is a tool used to measure bone micro texture and marker for the risk of osteoporosis.
TBS - Trabecular Bone Score
76
In a graphic display of the spine calibration phantom scan, the upper and lower controls represent + or - ______ percent of the mean.
1.5

DXA Boards (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions