DXA REGISTRY EXAM QUESTIONS AND
ANSWERS 100% CORRECT.
Which of the following is not a modality used for bone density scans?
A. QUS
B. QCT
C. MRI
D. DXA - ANSWERSC (MRI)
Which regions of interest can be used for a DXA scan?
A. Forearm
B. Distal femur
C. Rib
D. Sacrum - ANSWERSA (Forearm)
Pencil beam scanners use a pinhole collimator to emit a pencil-width x-ray beam.
A. True
B. False - ANSWERSA (True)
Which DXA system manufacturer uses the terminology lateral vertebral assessment
(LVA) instead of vertebral fracture assessment (VFA)?
A. Hologic
B. Norlan-Swissray
C. GE
D. Phillips - ANSWERSC (GE)
Some DXA scanners can accommodate patients weighing up to ______ pounds.
A. 300
B. 350
C. 400
D. 450 - ANSWERSD (450)
Under the Bone Mass Measurement Act, Medicare will cover the cost of a bone
densitometry scan every __________ for patients being monitored for a response to an
FDA-approved osteoporosis treatment.
A. 6 months
B. 10 months
,C. 23 months
D. 35 months - ANSWERSC (23 months)
What manufacturers make DXA scanners that use external calibration?
1. Hologic
2. Norland-Swissray
3. GE
A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 3 only - ANSWERSC (2 and 3)
What T-score is within the range indicating osteopenia (low bone mass)?
A. 0.5
B. -0.5
C. 1.5
D. -1.5 - ANSWERSD (-1.5)
Which patient demographic would be evaluated with a Z-score?
1. older men
2. children
3. premenopausal women
A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 3 only - ANSWERSC (2 and 3)
In what year was the Bone Mass Measurement Act passed by Congress?
A. 1997
B. 1998
C. 2001
D. 2005 - ANSWERSA (1997)
Which of the following is not a factor contributing to the need for a bone density scan?
A. Use of glucocorticoids
B. Tolerance of pain
C. Being post-meopausal
D. Patient age - ANSWERSB (Tolerance of pain)
,The National Health and Nutrition Examination Survey III (NHANES III) database should
be used as a reference standard for:
A. Hip T-score
B. Lumbar spine T-score
C. Z-scores
D. Fracture Risk - ANSWERSA (Hip T-score)
Bones are a network of collagen protein and:
A. Cartilage
B. Minerals
C. Carbon
D. Ligaments - ANSWERSB (Minerals)
A bony projection that usually is not as pronounced as a process is a(n):
A. Articular surface
B. Process
C. Eminence
D. Condyle - ANSWERSC (Eminence)
A depressed area that usually is broad or shallow is a(n):
A. Groove
B. Tuberosity
C. Facet
D. Fossa - ANSWERSD (Fossa)
When categorized by range of motion, immovable or nearly immovable fibrous joints
are:
A. Synarthroses
B. Gomphoses
C. Sutures
D. Syndesmoses - ANSWERSA (Synarthoses)
What is an example of a synchondrosis?
A. The joints connecting the cranial bones
B. The joint between each vertebra
C. The joint between the 1st rib and sternum
D. The joint connecting the tibia and fibula at the distal end - ANSWERSC (The joint
between the 1st rib and sternum)
Pivot joints are also called _________ joints.
, A. Ball and socket
B. Rotary
C. Hinge
D. Concave-convex - ANSWERSB (Rotary)
The Haversian canals are linked at right angles by smaller passageways called:
A. Lacunae
B. Volkmann's canals
C. Canaliculi
D. Lamellae - ANSWERSB (Volkmann's canals)
__________ are the cells that break down old bone.
A. Osteoblasts
B. Osteoclasts
C. Osteocytes
D. Osteons - ANSWERSB (Osteoclasts)
What is the primary center for ossification in long bones?
A. Epiphysis
B. Metaphysis
C. Diaphysis
D. Medullary cavity - ANSWERSC (Diaphysis)
What is the 2nd step of bone repair, when the body creates a callus and deposits woven
bone at the edge of the fracture?
A. Reactive stage
B. Regrowth stage
C. Reparative stage
D. Remodeling stage - ANSWERSC (Reparative stage)
Maximum bone density is reached around the age of :
A. 15
B. 20
C. 25
D. 30 - ANSWERSD (30)
Type II Primary Osteoporosis is exclusively related to:
A. Calcium deficiency
B. Vitamin D deficiency
ANSWERS 100% CORRECT.
Which of the following is not a modality used for bone density scans?
A. QUS
B. QCT
C. MRI
D. DXA - ANSWERSC (MRI)
Which regions of interest can be used for a DXA scan?
A. Forearm
B. Distal femur
C. Rib
D. Sacrum - ANSWERSA (Forearm)
Pencil beam scanners use a pinhole collimator to emit a pencil-width x-ray beam.
A. True
B. False - ANSWERSA (True)
Which DXA system manufacturer uses the terminology lateral vertebral assessment
(LVA) instead of vertebral fracture assessment (VFA)?
A. Hologic
B. Norlan-Swissray
C. GE
D. Phillips - ANSWERSC (GE)
Some DXA scanners can accommodate patients weighing up to ______ pounds.
A. 300
B. 350
C. 400
D. 450 - ANSWERSD (450)
Under the Bone Mass Measurement Act, Medicare will cover the cost of a bone
densitometry scan every __________ for patients being monitored for a response to an
FDA-approved osteoporosis treatment.
A. 6 months
B. 10 months
,C. 23 months
D. 35 months - ANSWERSC (23 months)
What manufacturers make DXA scanners that use external calibration?
1. Hologic
2. Norland-Swissray
3. GE
A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 3 only - ANSWERSC (2 and 3)
What T-score is within the range indicating osteopenia (low bone mass)?
A. 0.5
B. -0.5
C. 1.5
D. -1.5 - ANSWERSD (-1.5)
Which patient demographic would be evaluated with a Z-score?
1. older men
2. children
3. premenopausal women
A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 3 only - ANSWERSC (2 and 3)
In what year was the Bone Mass Measurement Act passed by Congress?
A. 1997
B. 1998
C. 2001
D. 2005 - ANSWERSA (1997)
Which of the following is not a factor contributing to the need for a bone density scan?
A. Use of glucocorticoids
B. Tolerance of pain
C. Being post-meopausal
D. Patient age - ANSWERSB (Tolerance of pain)
,The National Health and Nutrition Examination Survey III (NHANES III) database should
be used as a reference standard for:
A. Hip T-score
B. Lumbar spine T-score
C. Z-scores
D. Fracture Risk - ANSWERSA (Hip T-score)
Bones are a network of collagen protein and:
A. Cartilage
B. Minerals
C. Carbon
D. Ligaments - ANSWERSB (Minerals)
A bony projection that usually is not as pronounced as a process is a(n):
A. Articular surface
B. Process
C. Eminence
D. Condyle - ANSWERSC (Eminence)
A depressed area that usually is broad or shallow is a(n):
A. Groove
B. Tuberosity
C. Facet
D. Fossa - ANSWERSD (Fossa)
When categorized by range of motion, immovable or nearly immovable fibrous joints
are:
A. Synarthroses
B. Gomphoses
C. Sutures
D. Syndesmoses - ANSWERSA (Synarthoses)
What is an example of a synchondrosis?
A. The joints connecting the cranial bones
B. The joint between each vertebra
C. The joint between the 1st rib and sternum
D. The joint connecting the tibia and fibula at the distal end - ANSWERSC (The joint
between the 1st rib and sternum)
Pivot joints are also called _________ joints.
, A. Ball and socket
B. Rotary
C. Hinge
D. Concave-convex - ANSWERSB (Rotary)
The Haversian canals are linked at right angles by smaller passageways called:
A. Lacunae
B. Volkmann's canals
C. Canaliculi
D. Lamellae - ANSWERSB (Volkmann's canals)
__________ are the cells that break down old bone.
A. Osteoblasts
B. Osteoclasts
C. Osteocytes
D. Osteons - ANSWERSB (Osteoclasts)
What is the primary center for ossification in long bones?
A. Epiphysis
B. Metaphysis
C. Diaphysis
D. Medullary cavity - ANSWERSC (Diaphysis)
What is the 2nd step of bone repair, when the body creates a callus and deposits woven
bone at the edge of the fracture?
A. Reactive stage
B. Regrowth stage
C. Reparative stage
D. Remodeling stage - ANSWERSC (Reparative stage)
Maximum bone density is reached around the age of :
A. 15
B. 20
C. 25
D. 30 - ANSWERSD (30)
Type II Primary Osteoporosis is exclusively related to:
A. Calcium deficiency
B. Vitamin D deficiency
