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bone density test with complete verified solutions
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bone density test with complete verified solutions
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bone density test withcomplete verified
solutions
bone densitometry - answer the art and science of
measuring the bone mineral content and bone mineral
density of specific skeletal sites or the entire body
bone measurement values - answer used to assess bone
strength, diagnose diseases associated with low bone
density (like osteoporosis), monitor the effects of therapy
for such diseases, and predict risk of future fractures
dual x-ray absorptionmetry (DXA) - answer the most
versatile technique for bone densitometry
-low radiation dose
-wide availability
-ease of use
-short scan time
-high-resolution images
-good precision
-stable calibration - answer the DXA scan has the
advantages of--
, subtraction technique - answer the differences bw DXA
and radiography are that DXA uses a what?
photon energies - answer dual x-ray means that to
eliminate the contributions of soft tissue and and measure
the x-rat attenuation of bone alone, you do this by
scanning at two different x-ray __ __
diagnosis - answer DXA are only used for the purpose of
confirming correct positioning of the pt and correct
placement of the region of interest, it is not used for?
three - answer how many DXA manufacturers are in the
US?
lower - answer the effective radiation dose for DXA is
considerably __ than for radiography
osteoporosis - answer an undetected and overlooked
disease until the 1920s when radiography revealed the
detection of decreased density in bones
radiographic absorpitiometry - answer involved taking a
radiograph of bone with a known standard placed and
optically comparing the densities
radiogammetry - answer was introduced in the 1960s
partly in response to the measurements of bone loss
performed in astronauts
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