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Bone Densitometry Exam Questions
And Improved Responses
According to WHO, for the diagnosis of osteoporosis, based on the measurement of bone
density is
a. 2.5 SDs or more below the young adult peak bone density and a fracture
b. 2.5 SDs or more below the young adult peak bone density
c. More than 1 SD but less than 2.5 SDs below the young adult peak bone density
d. Not more than 1 SD below the young adult peak bone density - answers✔✔2.5 SDs or
more below the young adult peak bone density
What is the most common technique that is used to measure BMD?
a. QUS
b. QCT
c. SXA
d. DXA - answers✔✔DXA
What is the most common osteoporotic fracture?
a. Hip
b. Shoulder
c. Spine
d. Wrist - answers✔✔Spine
In bone densitometry, what is the primary responsibility of the technologist?
a. Beam collimation
b. Distance
c. Shielding
d. Time - answers✔✔Time
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Which of the following is considered an uncontrollable risk factor for osteoporosis?
a. Exercise
b. Lifestyle choices
c. Smoking
d. Race - answers✔✔Race
Which of the following measures more trabecular bone?
a. PA spine
b. Lateral spine
c. QCT spine
d. VFA - answers✔✔QCT spine
Primary osteoporosis Type 1, is related to
a. Aging
b. Disease
c. Medication
d. Menopause - answers✔✔Menopause
Identify the incorrect statement from the following:
a. Caucasian and Asians are at an increased risk of developing osteoporosis compared to other
ethnic groups
b. Most obese patients are at an increased risk of developing osteoporosis
c. Women are at an increased risk of developing osteoporosis compared to men because they
achieve a lower peak bone mass and go through menopause
d. Smoking is a recognized risk factor for the development of osteoporosis - answers✔✔Most
obese patients are at an increased risk of developing osteoporosis
Cancellous bone is also known as
a. Compact bone
b. Cortical bone
c. Trabecular bone
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d. Osteophyte - answers✔✔Trabecular bone
New bone matrix is formed by:
a. Osteoblasts
b. Osteoclasts
c. Cortical bone
d. Cancellous bone - answers✔✔Osteoblasts
What percentage of trabecular bone is found in the PA spine?
a. 1%
b. 33%
c. 50%
d. 66% - answers✔✔66%
Currently, the most accurate method to determine a patient's response to therapy for
osteoporosis is:
a. Serial DXA measurements of the forearm
b. Serial DXA measurements of the hip and spine
c. Serial QUS measurements of the calcaneus
d. Serial QCT measurements of the spine - answers✔✔Serial DXA measurements of the hip
and spine
Which of the following does not help in achieving peak bone mass?
a. Normal puberty
b. Exercise
c. Corticosteroid therapy
d. Adequate calcium and vitamin D intake - answers✔✔Corticosteroid therapy
Which of the following statement is false concerning QUS advantages over x-ray base
methodologies for BMD measurements?
a. QUS units are comparatively inexpensive