Page 1 of 160
ARRT BONE DENSITY EXAM*** QUESTIONS
AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | DOWNLOAD AND PASS |
LATEST EXAM UPDATE 2026/2027
What is the anatomical landmark on the proximal femur
that gives the best visual indication of the degree of
rotation of the proximal femur?
Lesser Trochanter
Which lumbar vertebra is described as having a
characteristic shape of an X or and H on a DXA PA spine
scan?
L4
What are the bony landmarks you could use to position
for a scan of the proximal femur?
,Page 2 of 160
-pubic bone
-lesser trochanter
What is the most common hip used for a DXA scan of the
proximal femur?
-usually do left hip
-always ask about history of surgery, history of fracture,
previous polio
What are some problems you may have when scanning a
proximal femur?
-hip replacements
-poor bone edge detection
,Page 3 of 160
-bowing of the legs
What is the commonly measured site of the forearm?
33% or 1/3 of the overall length of the ulna
What percentage of cortical bone does 33% of he radias
or ulna contain?
99%
What is the most important landmark when scanning a
forearm?
ulnar styloid process
, Page 4 of 160
Which arm should be scanned when performing a
forearm DXA?
-always scan the nondominant arm
-if nondominant arm had a previous fracture, scan should
be switched over to the dominant arm
Where does the ROI box get placed on a DXA scan of the
forearm?
ROI box gets put at the tip of the ulna
What are some reasons you may have to scan a forearm?
-patient is over table weight limit
-patient has bilateral hip replacements
ARRT BONE DENSITY EXAM*** QUESTIONS
AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | DOWNLOAD AND PASS |
LATEST EXAM UPDATE 2026/2027
What is the anatomical landmark on the proximal femur
that gives the best visual indication of the degree of
rotation of the proximal femur?
Lesser Trochanter
Which lumbar vertebra is described as having a
characteristic shape of an X or and H on a DXA PA spine
scan?
L4
What are the bony landmarks you could use to position
for a scan of the proximal femur?
,Page 2 of 160
-pubic bone
-lesser trochanter
What is the most common hip used for a DXA scan of the
proximal femur?
-usually do left hip
-always ask about history of surgery, history of fracture,
previous polio
What are some problems you may have when scanning a
proximal femur?
-hip replacements
-poor bone edge detection
,Page 3 of 160
-bowing of the legs
What is the commonly measured site of the forearm?
33% or 1/3 of the overall length of the ulna
What percentage of cortical bone does 33% of he radias
or ulna contain?
99%
What is the most important landmark when scanning a
forearm?
ulnar styloid process
, Page 4 of 160
Which arm should be scanned when performing a
forearm DXA?
-always scan the nondominant arm
-if nondominant arm had a previous fracture, scan should
be switched over to the dominant arm
Where does the ROI box get placed on a DXA scan of the
forearm?
ROI box gets put at the tip of the ulna
What are some reasons you may have to scan a forearm?
-patient is over table weight limit
-patient has bilateral hip replacements
