EXAM 3 - BONE DENSITOMETRY
QUESTIONS AND ANSWERS
What is bone densitometry? - Correct Answers -Used to measure the bone mineral
content (BMC) and bone mineral density (BMD) of specific skeletal sites in the body
Bone desitometry is used to diagnose? - Correct Answers -osteoporosis, determine
fracture risk, and monitor treatment effectiveness
What is osteoporosis? - Correct Answers -a condition characterized by loss of bone
mass
Bone loss increases with? - Correct Answers -age, immobilization, long-term steroid
therapy, and menopause
Osteoporosis predisposes individuals to? - Correct Answers -vertebral and hip fractures,
as well as fractures at other sites
What is DEXA or DXA? - Correct Answers -Dual X-ray absorptiometry
The results of a DEXA scan are usually reported as a? - Correct Answers -T-score and
Z-score
What is a T-score? - Correct Answers -compares your bone density with that of a
healthy young person
-If score is -1.0 or above, it is normal
-If score is -2.5 or below, defined as osteoporosis
What is a Z-score? - Correct Answers -compares your bone density with that of other
people of your age, gender, and race
The National Osteoporosis Foundation expects the number of individuals that are
affected by osteoporosis to be around? - Correct Answers -54 million
Radiographic images cannot detect bone loss until it? - Correct Answers -reaches 30-50
percent or until there is a pathologic fracture or increased kyphotic curvature of the
thoracic spine
What are osteoclasts? - Correct Answers -remove bone, causing bone resorption
QUESTIONS AND ANSWERS
What is bone densitometry? - Correct Answers -Used to measure the bone mineral
content (BMC) and bone mineral density (BMD) of specific skeletal sites in the body
Bone desitometry is used to diagnose? - Correct Answers -osteoporosis, determine
fracture risk, and monitor treatment effectiveness
What is osteoporosis? - Correct Answers -a condition characterized by loss of bone
mass
Bone loss increases with? - Correct Answers -age, immobilization, long-term steroid
therapy, and menopause
Osteoporosis predisposes individuals to? - Correct Answers -vertebral and hip fractures,
as well as fractures at other sites
What is DEXA or DXA? - Correct Answers -Dual X-ray absorptiometry
The results of a DEXA scan are usually reported as a? - Correct Answers -T-score and
Z-score
What is a T-score? - Correct Answers -compares your bone density with that of a
healthy young person
-If score is -1.0 or above, it is normal
-If score is -2.5 or below, defined as osteoporosis
What is a Z-score? - Correct Answers -compares your bone density with that of other
people of your age, gender, and race
The National Osteoporosis Foundation expects the number of individuals that are
affected by osteoporosis to be around? - Correct Answers -54 million
Radiographic images cannot detect bone loss until it? - Correct Answers -reaches 30-50
percent or until there is a pathologic fracture or increased kyphotic curvature of the
thoracic spine
What are osteoclasts? - Correct Answers -remove bone, causing bone resorption
