1|Page
Bone Density Registry Review Questions and
Answers 100% Pass
According to the WHO criteria, for the diagnosis of osteoporosis, based on the measurement of bone
density is - ANSWER ✔✔-2.5 standard deviations or more below the young adult peak bone density
Name the current gold standard technique for measuring bone density - ANSWER ✔✔-DXA
Cancellous bone is also known as what? - ANSWER ✔✔-Trabecular bone
What is the anatomical landmark of the proximal femur that indicates 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 H on a DXA PA spine
scan? - ANSWER ✔✔-L4
Name all of the bisphosphonates for prevention and treatment of osteoporosis - ANSWER ✔✔-
Alendronate, risedronate, ibandronate
Name the bisphosphonate for treatment only of osteoporosis - ANSWER ✔✔-Zolendronic acid (Reclast)
What medication used to be classified as a SERM and is an estrogen agonist/antagonist and reduces
breast cancer - ANSWER ✔✔-Ralaxofene (Evista)
Is Forteo a bisphosphonate? - ANSWER ✔✔-No, it's an anabolic
Quantitative computed tomography or QCT results are usually reported in - ANSWER ✔✔-Grams per
cubic centimeter g/cm3
Created by Grace Amelia © 2025, All Rights Reserved.
, 2|Page
Quantitative computed tomography is - ANSWER ✔✔-Volumetric measurement of 100% trabecular bone
at the spine
Peripheral bone mineral density 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 ten-
year probability of major osteoporotic fracture for both men and women? - ANSWER ✔✔-FRAX
Ability to measure true value and most important for DXA and assessment of fracture risk - ANSWER
✔✔-Accuracy
Is precision or accuracy mostly affected by technology? - ANSWER ✔✔-Accuracy
The reproducibility of measurements and most important for serial measurements to determine if there
has been interval change - ANSWER ✔✔-Precision
Is accuracy or precision mostly affected by the technologist? - ANSWER ✔✔-Precision
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
Which of the following sites is mostly composed of cortical bone? Distal forearm, femoral neck, proximal
forearm, vertebral bodies - ANSWER ✔✔-Proximal forearm
What is the name of the isotope that was used in single photon absorptiometry - ANSWER ✔✔-Iodine -
125
What is the texture index that evaluates the pixel grey level variations in lumbar spine DXA images? -
ANSWER ✔✔-Trabecular bone score or TBS
Created by Grace Amelia © 2025, All Rights Reserved.
Bone Density Registry Review Questions and
Answers 100% Pass
According to the WHO criteria, for the diagnosis of osteoporosis, based on the measurement of bone
density is - ANSWER ✔✔-2.5 standard deviations or more below the young adult peak bone density
Name the current gold standard technique for measuring bone density - ANSWER ✔✔-DXA
Cancellous bone is also known as what? - ANSWER ✔✔-Trabecular bone
What is the anatomical landmark of the proximal femur that indicates 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 H on a DXA PA spine
scan? - ANSWER ✔✔-L4
Name all of the bisphosphonates for prevention and treatment of osteoporosis - ANSWER ✔✔-
Alendronate, risedronate, ibandronate
Name the bisphosphonate for treatment only of osteoporosis - ANSWER ✔✔-Zolendronic acid (Reclast)
What medication used to be classified as a SERM and is an estrogen agonist/antagonist and reduces
breast cancer - ANSWER ✔✔-Ralaxofene (Evista)
Is Forteo a bisphosphonate? - ANSWER ✔✔-No, it's an anabolic
Quantitative computed tomography or QCT results are usually reported in - ANSWER ✔✔-Grams per
cubic centimeter g/cm3
Created by Grace Amelia © 2025, All Rights Reserved.
, 2|Page
Quantitative computed tomography is - ANSWER ✔✔-Volumetric measurement of 100% trabecular bone
at the spine
Peripheral bone mineral density 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 ten-
year probability of major osteoporotic fracture for both men and women? - ANSWER ✔✔-FRAX
Ability to measure true value and most important for DXA and assessment of fracture risk - ANSWER
✔✔-Accuracy
Is precision or accuracy mostly affected by technology? - ANSWER ✔✔-Accuracy
The reproducibility of measurements and most important for serial measurements to determine if there
has been interval change - ANSWER ✔✔-Precision
Is accuracy or precision mostly affected by the technologist? - ANSWER ✔✔-Precision
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
Which of the following sites is mostly composed of cortical bone? Distal forearm, femoral neck, proximal
forearm, vertebral bodies - ANSWER ✔✔-Proximal forearm
What is the name of the isotope that was used in single photon absorptiometry - ANSWER ✔✔-Iodine -
125
What is the texture index that evaluates the pixel grey level variations in lumbar spine DXA images? -
ANSWER ✔✔-Trabecular bone score or TBS
Created by Grace Amelia © 2025, All Rights Reserved.
