Bone Density Maine Guide b b b
bone ndensitometry n- n ncorrect nanswer- nthe nart nand nscience nof nmeasuring nthe nbone
b b b b b b b b b b b b b
nmineral ncontent nand nbone nmineral ndensity nof nspecific nskeletal nsites nor nthe nentire
b b b b b b b b b b b b b
nbody
b
b nbone nmeasurement nvalues n- n ncorrect nanswer- nused nto nassess nbone nstrength,
b b b b b b b b b b b
ndiagnose ndiseases nassociated nwith nlow nbone ndensity n(like nosteoporosis), nmonitor
b b b b b b b b b b
nthe neffects nof ntherapy nfor nsuch ndiseases, nand npredict nrisk nof nfuture nfractures
b b b b b b b b b b b b b
b ndual nx-ray nabsorptionmetry n(DXA) n- n ncorrect nanswer- nthe nmost nversatile ntechnique
b b b b b b b b b b b
nfor nbone ndensitometry
b b b
n-low nradiation ndose
b b b
-wide navailability n b b
-ease nof nuse b b
-short nscan ntime b b
-high-resolution nimages n b b
-good nprecision b
-stable ncalibration n- n ncorrect nanswer- nthe nDXA nscan nhas nthe nadvantages nof--
b b b b b b b b b b b b
b nsubtraction ntechnique n- n ncorrect nanswer- nthe ndifferences nbw nDXA nand nradiography
b b b b b b b b b b b
nare nthat nDXA nuses na nwhat?
b b b b b b
b nphoton nenergies n- n ncorrect nanswer- ndual nx-ray nmeans nthat nto neliminate nthe
b b b b b b b b b b b b
ncontributions nof nsoft ntissue nand nand nmeasure nthe nx-rat nattenuation nof nbone nalone,
b b b b b b b b b b b b b
nyou ndo nthis nby nscanning nat ntwo ndifferent nx-ray n__ n__
b b b b b b b b b b b
, b ndiagnosis n- n ncorrect nanswer- nDXA nare nonly nused nfor nthe npurpose nof nconfirming
b b b b b b b b b b b b b
ncorrect npositioning nof nthe npt nand ncorrect nplacement nof nthe nregion nof ninterest, nit nis
b b b b b b b b b b b b b b b
nnot nused nfor?
b b b
b nthree n- n ncorrect nanswer- nhow nmany nDXA nmanufacturers nare nin nthe nUS?
b b b b b b b b b b b b
b nlower n- n ncorrect nanswer- nthe neffective nradiation ndose nfor nDXA nis nconsiderably n__
b b b b b b b b b b b b b
nthan nfor nradiography
b b b
b nosteoporosis n- n ncorrect nanswer- nan nundetected nand noverlooked ndisease nuntil nthe b b b b b b b b b b b
n1920s nwhen nradiography nrevealed nthe ndetection nof ndecreased ndensity nin nbones
b b b b b b b b b b b
b nradiographic nabsorpitiometry n- n ncorrect nanswer- ninvolved ntaking na nradiograph nof b b b b b b b b b b
nbone nwith na nknown nstandard nplaced nand noptically ncomparing nthe ndensities
b b b b b b b b b b b
b nradiogammetry n- n ncorrect nanswer- nwas nintroduced nin nthe n1960s npartly nin nresponse b b b b b b b b b b b b
nto nthe nmeasurements nof nbone nloss nperformed nin nastronauts
b b b b b b b b b
b ndecreases n- n ncorrect nanswer- nwith nradiogammetry, nit nwas nfound nthat nas nbone nloss
b b b b b b b b b b b b b
nprogresses, nthe nthickness nof nthe nouter nshell nof nthe nsmall ntubular nbones n___ nas
b b b b b b b b b b b b b b
nthe ninner ncavity nenlarges
b b b b
b nquantitive ncomputed ntomography n- n ncorrect nanswer- nadapted nin nthe nlate n1970s
b b b b b b b b b b b
nwith nthe nuse nof nspecialized nsoftware nand nreference nphantoms nwhich nallowed nfor
b b b b b b b b b b b b
nquantitive nmeasurements nof nthe ncentral narea nof nthe nvertebral nbody nwhere nearly
b b b b b b b b b b b b
nbone nloss noccurs
b b b
b nsingle nphoton nabsorptiometry(SPA)/dual nphoton nabsorptiometry n(DPA) n- n ncorrect
b b b b b b b b
nanswer- nintroduced nin nthe n70s nand n80s nand nis nbased non nthe nphysics nprinciple
b b b b b b b b b b b b b b
nsimilar nto nDXA; nthis nrelies non na nwater nbath nto neliminate nthe neffects nof nsoft ntissue
b b b b b b b b b b b b b b b b
b nDPA n- n ncorrect nanswer- nused nphotons nof n2 nenergies nand nwas nused nto nassess
b b b b b b b b b b b b b b
ncites nin nthe ncentral nskeleton n(l-spine nand nprox nfemur)
b b b b b b b b b
b ncollimated nscintillation ncounter n- n ncorrect nanswer- nwith nthe nDPA, nthe nintensity nof
b b b b b b b b b b b b
nthe nattenuated nbeam nwas nmeasured nby na n______, nand nthe nbone nmineral nwas
b b b b b b b b b b b b b
nquantified
b
b nthe nfirst ncommercial nDXA nscanner n- n ncorrect nanswer- nfirst nintroduced nin n1987 nand
b b b b b b b b b b b b b
nused na nradioisotope nfor nits nsource nbefore nbeing nreplaced nby nan nx-ray ntube
b b b b b b b b b b b b b
b n-smaller
-more nportable b
-less ncomplex n- n ncorrect nanswer- nin nthe nlate n90s, nDXA nscanners nhave nbecome
b b b b b b b b b b b b b
nmore nwhat?
b b
bone ndensitometry n- n ncorrect nanswer- nthe nart nand nscience nof nmeasuring nthe nbone
b b b b b b b b b b b b b
nmineral ncontent nand nbone nmineral ndensity nof nspecific nskeletal nsites nor nthe nentire
b b b b b b b b b b b b b
nbody
b
b nbone nmeasurement nvalues n- n ncorrect nanswer- nused nto nassess nbone nstrength,
b b b b b b b b b b b
ndiagnose ndiseases nassociated nwith nlow nbone ndensity n(like nosteoporosis), nmonitor
b b b b b b b b b b
nthe neffects nof ntherapy nfor nsuch ndiseases, nand npredict nrisk nof nfuture nfractures
b b b b b b b b b b b b b
b ndual nx-ray nabsorptionmetry n(DXA) n- n ncorrect nanswer- nthe nmost nversatile ntechnique
b b b b b b b b b b b
nfor nbone ndensitometry
b b b
n-low nradiation ndose
b b b
-wide navailability n b b
-ease nof nuse b b
-short nscan ntime b b
-high-resolution nimages n b b
-good nprecision b
-stable ncalibration n- n ncorrect nanswer- nthe nDXA nscan nhas nthe nadvantages nof--
b b b b b b b b b b b b
b nsubtraction ntechnique n- n ncorrect nanswer- nthe ndifferences nbw nDXA nand nradiography
b b b b b b b b b b b
nare nthat nDXA nuses na nwhat?
b b b b b b
b nphoton nenergies n- n ncorrect nanswer- ndual nx-ray nmeans nthat nto neliminate nthe
b b b b b b b b b b b b
ncontributions nof nsoft ntissue nand nand nmeasure nthe nx-rat nattenuation nof nbone nalone,
b b b b b b b b b b b b b
nyou ndo nthis nby nscanning nat ntwo ndifferent nx-ray n__ n__
b b b b b b b b b b b
, b ndiagnosis n- n ncorrect nanswer- nDXA nare nonly nused nfor nthe npurpose nof nconfirming
b b b b b b b b b b b b b
ncorrect npositioning nof nthe npt nand ncorrect nplacement nof nthe nregion nof ninterest, nit nis
b b b b b b b b b b b b b b b
nnot nused nfor?
b b b
b nthree n- n ncorrect nanswer- nhow nmany nDXA nmanufacturers nare nin nthe nUS?
b b b b b b b b b b b b
b nlower n- n ncorrect nanswer- nthe neffective nradiation ndose nfor nDXA nis nconsiderably n__
b b b b b b b b b b b b b
nthan nfor nradiography
b b b
b nosteoporosis n- n ncorrect nanswer- nan nundetected nand noverlooked ndisease nuntil nthe b b b b b b b b b b b
n1920s nwhen nradiography nrevealed nthe ndetection nof ndecreased ndensity nin nbones
b b b b b b b b b b b
b nradiographic nabsorpitiometry n- n ncorrect nanswer- ninvolved ntaking na nradiograph nof b b b b b b b b b b
nbone nwith na nknown nstandard nplaced nand noptically ncomparing nthe ndensities
b b b b b b b b b b b
b nradiogammetry n- n ncorrect nanswer- nwas nintroduced nin nthe n1960s npartly nin nresponse b b b b b b b b b b b b
nto nthe nmeasurements nof nbone nloss nperformed nin nastronauts
b b b b b b b b b
b ndecreases n- n ncorrect nanswer- nwith nradiogammetry, nit nwas nfound nthat nas nbone nloss
b b b b b b b b b b b b b
nprogresses, nthe nthickness nof nthe nouter nshell nof nthe nsmall ntubular nbones n___ nas
b b b b b b b b b b b b b b
nthe ninner ncavity nenlarges
b b b b
b nquantitive ncomputed ntomography n- n ncorrect nanswer- nadapted nin nthe nlate n1970s
b b b b b b b b b b b
nwith nthe nuse nof nspecialized nsoftware nand nreference nphantoms nwhich nallowed nfor
b b b b b b b b b b b b
nquantitive nmeasurements nof nthe ncentral narea nof nthe nvertebral nbody nwhere nearly
b b b b b b b b b b b b
nbone nloss noccurs
b b b
b nsingle nphoton nabsorptiometry(SPA)/dual nphoton nabsorptiometry n(DPA) n- n ncorrect
b b b b b b b b
nanswer- nintroduced nin nthe n70s nand n80s nand nis nbased non nthe nphysics nprinciple
b b b b b b b b b b b b b b
nsimilar nto nDXA; nthis nrelies non na nwater nbath nto neliminate nthe neffects nof nsoft ntissue
b b b b b b b b b b b b b b b b
b nDPA n- n ncorrect nanswer- nused nphotons nof n2 nenergies nand nwas nused nto nassess
b b b b b b b b b b b b b b
ncites nin nthe ncentral nskeleton n(l-spine nand nprox nfemur)
b b b b b b b b b
b ncollimated nscintillation ncounter n- n ncorrect nanswer- nwith nthe nDPA, nthe nintensity nof
b b b b b b b b b b b b
nthe nattenuated nbeam nwas nmeasured nby na n______, nand nthe nbone nmineral nwas
b b b b b b b b b b b b b
nquantified
b
b nthe nfirst ncommercial nDXA nscanner n- n ncorrect nanswer- nfirst nintroduced nin n1987 nand
b b b b b b b b b b b b b
nused na nradioisotope nfor nits nsource nbefore nbeing nreplaced nby nan nx-ray ntube
b b b b b b b b b b b b b
b n-smaller
-more nportable b
-less ncomplex n- n ncorrect nanswer- nin nthe nlate n90s, nDXA nscanners nhave nbecome
b b b b b b b b b b b b b
nmore nwhat?
b b