Exam (elaborations)
BONE DENSITOMETRY QUESTIONS WITH CORRECT ANSWERS
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BONE DENSITOMETRY QUESTIONS WITH CORRECT ANSWERS
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BONE DENSITOMETRY QUESTIONSWITH CORRECT ANSWERS
Certification ddis ddthrough ddthe dd_____; dd- ddAnswer ddARRT
Credential ddidentification dd_____; dd- ddAnswer ddRT dd(BD)
Primary ddcertification ddmay ddbe ddin dd______; dd- ddAnswer ddradiography ddNM ddRT
X-ray ddfirst dddemonstrated ddosteoporosis ddin ddthe dd_____; dd- ddAnswer dd1920's
1st ddarticle ddon ddbone ddmass ddquantification ddwas ddissued ddin ddthe dd______; dd-
ddAnswer dd1930's
Bone ddloss ddin ddastronauts ddsparked ddradiogrammetry ddin ddthe dd______; dd- ddAnswer
dd1960's
Quantitative ddComputed ddTomography dd(*QCT*) ddemerged ddin ddthe dd_____; dd-
ddAnswer dd1970's
1st dddedicated ddBD ddunit ddin ddthe dd_______; dd- ddAnswer dd1970's ddand ddearly
dd1980's
1st ddcommercial ddDXA ddscanner ddin dd______; dd- ddAnswer dd*1987*
Development ddof ddsmaller, ddportable ddunits ddfor ddperipheral ddscans ddwas ddin ddthe
ddlate dd_____; dd- ddAnswer dd1990's
Defined ddas dda ddgeneral ddterm ddused ddto dddescribe dd"the ddart ddand ddscience ddof
ddmeasuring ddbone ddmineral ddcontent ddand dddensity ddof ddspecific ddskeletal ddsites ddor
ddthe ddwhole ddbody"; dd- ddAnswer ddBone ddDensitometry;
BD ddis ddused ddto: dd- ddAnswer dd• ddassess ddbone ddstrength;
• dddiagnose dddiseases ddassociated ddwith ddlow ddbone dddensity dd(especially
ddosteoporosis);
• ddmonitor ddtherapy;
• ddpredict ddfracture ddrisk;
Current ddBD ddtechniques dduse dd____________; dd- ddAnswer ddionizing ddradiation ddor
ddultrasound
, Single ddPhoton ddAbsorptiometry dd- ddAnswer dd*SPA*:
• dd1st ddbone dddensitometry ddto ddbe ddused ddclinically;
• ddsingle ddenergy ddmeasurement: ddsealed ddradionuclide ddsource dd(125 ddI);
no ddlonger ddin dduse;
Single ddX-ray ddAbsorptiometry dd- ddAnswer dd*SXA*:
• ddmodification ddof ddthe ddSPA ddforearm ddscanner;
• ddutilizes ddx-ray;
Dual ddPhoton ddAbsorptiometry dd- ddAnswer dd*DPA*:
• dd1st dddual ddBD ddfor ddhip ddand ddspine ddmeasurement;
• ddradioactive ddsource dd(Gd-153);
• dd2 dddifferent ddphoton ddenergies: dd40 ddand dd100keV;
Dual ddX-ray ddAbsorptiometry dd- ddAnswer dd*DXA*:
• ddutilizes dd2 dddifferent ddx-ray ddbeams ddof dddifferent ddenergies ddlevel;
• ddsubtraction ddtecnique: ddsoft ddtissue ddabsorption ddis ddsubtracted ddout ddand ddBMD
ddis ddacquired;
• dd2D ddmeasurement;
*Quantitative* ddComputed ddTomography dd- ddAnswer dd*Q*CT:
• ddapplied ddto ddCT ddscan ddfor ddBD ddvolumetric dd(*3D*) ddmeasurements;
• ddseparation ddof ddthe ddvalues ddfor ddcortical ddand ddtrabecular ddbone ddwithin dd*L-
spine* ddbodies;
• ddutilizes dda dd*phantom* ddscanned ddtogether ddwith ddthe ddpatient ddsimultaneously;
• ddfor ddextremities: dd*p*eripheral ddQCT;
*Quantitative* ddUltrasound dd- ddAnswer dd*Q*US:
• ddMost ddcommonly ddused ddat ddthe dd*heel*;
• ddBased ddon ddBroad-band ddUltrasound ddAttenuation dd(BUA) ddand ddspeed ddof
ddsound dd(SOS); dd• ddless ddexpensive ddandmore ddportable ddthan ddDXA;
• dddoes ddnot dduse ddx-rays;
• ddnot ddproven ddreliable ddin ddthe dddiagnosis ddof ddosteoporosis;
The dd*most ddcommon* ddtechnique ddused ddin ddbone dddensitometry ddis dd- ddAnswer
ddDual-energy ddX-ray ddAbsorptiometry dd(*DXA*);
"Golden ddstandard" ddfor ddnon-invasive ddosteoporosis dddiagnostic;
Brands:
1) ddLunar;
2) ddNorland;
3) ddHologic;
Hip dd& ddSpine ddmeasuremets;
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