ARRT Bone Density Exam Study Set
Questions With Correct Answers
According |to |the |WHO |criteria, |what |is |the |diagnosis |of |osteoporosis |based |on |the |
measurement |of |bone |density? |- |ANSWER✔✔✔-2.5 |SD |or |more |below |the |young |adult |peak |
bone |density
What |is |the |gold |standard |technique |for |measuring |bone |density? |- |ANSWER✔✔✔-DXA
Cancellous |bone |is |also |know |as? |- |ANSWER✔✔✔-Trabecular |Bone
What |is |the |anatomical |landmark |on |the |proximal |femur |that |gives |the |best |visual |indication |
of |the |degree |of |rotation |of |the |proximal |femur? |- |ANSWER✔✔✔-Lesser |Trochanter
Which |lumbar |vertebra |is |described |as |having |a |characteristic |shape |of |an |X |or |and |H |on |a |
DXA |PA |spine |scan? |- |ANSWER✔✔✔-L4
Is |Forteo |a |bisphosphonate? |- |ANSWER✔✔✔-NO
Quantitative |Computated |Tomography |(QCT) |- |ANSWER✔✔✔--measurements |are |volumetric
-trabecular |bone |can |be |isolated |from |cortical |bone
-accuracy |may |be |affected |by |marrow |fat
Peripheral |BMD |measurements |are |advocated |for |_____________? |- |ANSWER✔✔✔-Screening
,What |is |the |most |important |clinical |consequence |of |osteoporosis? |- |ANSWER✔✔✔-Fracture
What |is |the |name |of |the |tool |that |integrates |clinical |information |in |a |quantitative |manner |to |
predict |a |10-year |probability |of |major |osteoporotic |fracture |for |both |men |and |women? |- |
ANSWER✔✔✔-FRAX
What |is |the |major |source |of |precision |error |in |clinical |practice? |- |ANSWER✔✔✔-Technologist
What |is |the |percentage |of |trabecular |bone |in |the |skeleton? |- |ANSWER✔✔✔-20 |%
The |forearm |is |not |used |to |monitor |the |effects |of |therapy |for |osteoporosis |because....... |- |
ANSWER✔✔✔-rate |of |change |in |BMD |is |too |slow
What |site |is |mostly |composed |of |cortical |bone? |- |ANSWER✔✔✔-Proximal |forearm
What |are |the |advantages |of |QUS |over |x-ray |methodologies |for |BMD |measurement? |- |
ANSWER✔✔✔--ultrasound |is |comparatively |inexpensive
-patients |are |not |subjected |to |ionizing |radiation
-ultrasound |exams |are |quick |to |perform
What |is |the |name |of |the |isotope |that |was |used |in |SPA? |- |ANSWER✔✔✔-Iodine-125
What |is |the |texture |index |that |evaluates |the |pixel |gray-level |variations |in |lumber |spine |DXA |
images? |- |ANSWER✔✔✔-TBS |(Trabecular |Bone |Score)
,When |does |type |2 |primary |osteoporosis |generally |occur? |- |ANSWER✔✔✔-after |age |70
What |technique |used |images |of |the |hand |and |an |aluminum |wedge? |- |ANSWER✔✔✔-RA |
(Radiograhic |Absorptiometry)
New |bone |is |formed |by |the |___________? |- |ANSWER✔✔✔-osteoblasts
Cancellous |bone |is |also |known |as |_______________? |- |ANSWER✔✔✔-Trabecular |bone
How |would |you |start |labeling |the |vertebral |bodies |on |a |PA |lumbar |scan? |- |ANSWER✔✔✔-
Start |at |L4 |and |count/label |up
With |changes |in |rotation |of |the |femoral |neck, |what |happens? |- |ANSWER✔✔✔-Increases |the |
BMD
If |daily |QC |fails, |what |should |be |your |first |step |of |action? |- |ANSWER✔✔✔--repeat |the |scan
-if |scan |fails |again, |then |call |for |help
Although |the |technology |is |similar |with |all |of |the |DXA |units, |the |BMD |results |are |different |
because.......... |- |ANSWER✔✔✔--different |calibration |standards
-algorithms |to |calculate |BMD
-differences |in |the |ROI
-different |databases
, The |primary |mechanism |of |action |of |antiresorptive |therapies |is |the |direct |interaction |with |the |
__________________ |- |ANSWER✔✔✔-osteoclasts
Which |site |is |preferred |for |determination |of |fracture |prediction? |- |ANSWER✔✔✔-proximal |
femur
What |is |one |disease |not |associated |with |low |BMD? |- |ANSWER✔✔✔-osteopetrosis
DXA |results |may |be |influenced |by......... |- |ANSWER✔✔✔--body |thickness
-degenerative |changes
-fractures
-scan |mode
A |great |forearm |scan |should |include....... |- |ANSWER✔✔✔--forearm |centered
-forearm |straight
-free |of |artifacts
Phantoms |that |mimic |the |shape |and |size |of |a |skeletal |region |are |called |
______________________________. |- |ANSWER✔✔✔-anthromomorphic |phantoms
What |is |the |formula |used |to |calculate |BMD? |- |ANSWER✔✔✔-BMD |= |BMC/Area
Questions With Correct Answers
According |to |the |WHO |criteria, |what |is |the |diagnosis |of |osteoporosis |based |on |the |
measurement |of |bone |density? |- |ANSWER✔✔✔-2.5 |SD |or |more |below |the |young |adult |peak |
bone |density
What |is |the |gold |standard |technique |for |measuring |bone |density? |- |ANSWER✔✔✔-DXA
Cancellous |bone |is |also |know |as? |- |ANSWER✔✔✔-Trabecular |Bone
What |is |the |anatomical |landmark |on |the |proximal |femur |that |gives |the |best |visual |indication |
of |the |degree |of |rotation |of |the |proximal |femur? |- |ANSWER✔✔✔-Lesser |Trochanter
Which |lumbar |vertebra |is |described |as |having |a |characteristic |shape |of |an |X |or |and |H |on |a |
DXA |PA |spine |scan? |- |ANSWER✔✔✔-L4
Is |Forteo |a |bisphosphonate? |- |ANSWER✔✔✔-NO
Quantitative |Computated |Tomography |(QCT) |- |ANSWER✔✔✔--measurements |are |volumetric
-trabecular |bone |can |be |isolated |from |cortical |bone
-accuracy |may |be |affected |by |marrow |fat
Peripheral |BMD |measurements |are |advocated |for |_____________? |- |ANSWER✔✔✔-Screening
,What |is |the |most |important |clinical |consequence |of |osteoporosis? |- |ANSWER✔✔✔-Fracture
What |is |the |name |of |the |tool |that |integrates |clinical |information |in |a |quantitative |manner |to |
predict |a |10-year |probability |of |major |osteoporotic |fracture |for |both |men |and |women? |- |
ANSWER✔✔✔-FRAX
What |is |the |major |source |of |precision |error |in |clinical |practice? |- |ANSWER✔✔✔-Technologist
What |is |the |percentage |of |trabecular |bone |in |the |skeleton? |- |ANSWER✔✔✔-20 |%
The |forearm |is |not |used |to |monitor |the |effects |of |therapy |for |osteoporosis |because....... |- |
ANSWER✔✔✔-rate |of |change |in |BMD |is |too |slow
What |site |is |mostly |composed |of |cortical |bone? |- |ANSWER✔✔✔-Proximal |forearm
What |are |the |advantages |of |QUS |over |x-ray |methodologies |for |BMD |measurement? |- |
ANSWER✔✔✔--ultrasound |is |comparatively |inexpensive
-patients |are |not |subjected |to |ionizing |radiation
-ultrasound |exams |are |quick |to |perform
What |is |the |name |of |the |isotope |that |was |used |in |SPA? |- |ANSWER✔✔✔-Iodine-125
What |is |the |texture |index |that |evaluates |the |pixel |gray-level |variations |in |lumber |spine |DXA |
images? |- |ANSWER✔✔✔-TBS |(Trabecular |Bone |Score)
,When |does |type |2 |primary |osteoporosis |generally |occur? |- |ANSWER✔✔✔-after |age |70
What |technique |used |images |of |the |hand |and |an |aluminum |wedge? |- |ANSWER✔✔✔-RA |
(Radiograhic |Absorptiometry)
New |bone |is |formed |by |the |___________? |- |ANSWER✔✔✔-osteoblasts
Cancellous |bone |is |also |known |as |_______________? |- |ANSWER✔✔✔-Trabecular |bone
How |would |you |start |labeling |the |vertebral |bodies |on |a |PA |lumbar |scan? |- |ANSWER✔✔✔-
Start |at |L4 |and |count/label |up
With |changes |in |rotation |of |the |femoral |neck, |what |happens? |- |ANSWER✔✔✔-Increases |the |
BMD
If |daily |QC |fails, |what |should |be |your |first |step |of |action? |- |ANSWER✔✔✔--repeat |the |scan
-if |scan |fails |again, |then |call |for |help
Although |the |technology |is |similar |with |all |of |the |DXA |units, |the |BMD |results |are |different |
because.......... |- |ANSWER✔✔✔--different |calibration |standards
-algorithms |to |calculate |BMD
-differences |in |the |ROI
-different |databases
, The |primary |mechanism |of |action |of |antiresorptive |therapies |is |the |direct |interaction |with |the |
__________________ |- |ANSWER✔✔✔-osteoclasts
Which |site |is |preferred |for |determination |of |fracture |prediction? |- |ANSWER✔✔✔-proximal |
femur
What |is |one |disease |not |associated |with |low |BMD? |- |ANSWER✔✔✔-osteopetrosis
DXA |results |may |be |influenced |by......... |- |ANSWER✔✔✔--body |thickness
-degenerative |changes
-fractures
-scan |mode
A |great |forearm |scan |should |include....... |- |ANSWER✔✔✔--forearm |centered
-forearm |straight
-free |of |artifacts
Phantoms |that |mimic |the |shape |and |size |of |a |skeletal |region |are |called |
______________________________. |- |ANSWER✔✔✔-anthromomorphic |phantoms
What |is |the |formula |used |to |calculate |BMD? |- |ANSWER✔✔✔-BMD |= |BMC/Area
