ARRT Bone Density Exam Study Set
Questions And Answers
According to the WHO criteria, what is the diagnosis of
osteoporosis based on the measurement of bone density? -
correct answer ✅2.5 SD or more below the young adult peak bone
density
What is the gold standard technique for measuring bone density? -
correct answer ✅DXA
Cancellous bone is also know as? -
correct answer ✅Trabecular Bone
What is the anatomical landmark on the proximal femur that gives
the best visual indication of the degree of rotation of the proximal
femur? -
correct answer ✅Lesser Trochanter
Which lumbar vertebra is described as having a characteristic shape
of an X or and H on a DXA PA spine scan? -
correct answer ✅L4
Is Forteo a bisphosphonate? -
correct answer ✅NO
,ARRT Bone Density Exam Study Set
Questions And Answers
Quantitative Computated Tomography (QCT) -
correct answer ✅-measurements are volumetric
-trabecular bone can be isolated from cortical bone
-accuracy may be affected by marrow fat
Peripheral BMD measurements are advocated for _____________?
-
correct answer ✅Screening
What is the most important clinical consequence of osteoporosis? -
correct answer ✅Fracture
What is the name of the tool that integrates clinical information in a
quantitative manner to predict a 10-year probability of major
osteoporotic fracture for both men and women? -
correct answer ✅FRAX
,ARRT Bone Density Exam Study Set
Questions And Answers
What is the major source of precision error in clinical practice? -
correct answer ✅Technologist
What is the percentage of trabecular bone in the skeleton? -
correct answer ✅20 %
The forearm is not used to monitor the effects of therapy for
osteoporosis because....... -
correct answer ✅rate of change in BMD is too slow
What site is mostly composed of cortical bone? -
correct answer ✅Proximal forearm
What are the advantages of QUS over x-ray methodologies for BMD
measurement? -
correct answer ✅-ultrasound is comparatively inexpensive
-patients are not subjected to ionizing radiation
-ultrasound exams are quick to perform
, ARRT Bone Density Exam Study Set
Questions And Answers
What is the name of the isotope that was used in SPA? -
correct answer ✅Iodine-125
What is the texture index that evaluates the pixel gray-level
variations in lumber spine DXA images? -
correct answer ✅TBS (Trabecular Bone Score)
When does type 2 primary osteoporosis generally occur? -
correct answer ✅after age 70
What technique used images of the hand and an aluminum wedge?
-
correct answer ✅RA (Radiograhic Absorptiometry)
New bone is formed by the ___________? -
correct answer ✅osteoblasts
Cancellous bone is also known as _______________? -
correct answer ✅Trabecular bone
Questions And Answers
According to the WHO criteria, what is the diagnosis of
osteoporosis based on the measurement of bone density? -
correct answer ✅2.5 SD or more below the young adult peak bone
density
What is the gold standard technique for measuring bone density? -
correct answer ✅DXA
Cancellous bone is also know as? -
correct answer ✅Trabecular Bone
What is the anatomical landmark on the proximal femur that gives
the best visual indication of the degree of rotation of the proximal
femur? -
correct answer ✅Lesser Trochanter
Which lumbar vertebra is described as having a characteristic shape
of an X or and H on a DXA PA spine scan? -
correct answer ✅L4
Is Forteo a bisphosphonate? -
correct answer ✅NO
,ARRT Bone Density Exam Study Set
Questions And Answers
Quantitative Computated Tomography (QCT) -
correct answer ✅-measurements are volumetric
-trabecular bone can be isolated from cortical bone
-accuracy may be affected by marrow fat
Peripheral BMD measurements are advocated for _____________?
-
correct answer ✅Screening
What is the most important clinical consequence of osteoporosis? -
correct answer ✅Fracture
What is the name of the tool that integrates clinical information in a
quantitative manner to predict a 10-year probability of major
osteoporotic fracture for both men and women? -
correct answer ✅FRAX
,ARRT Bone Density Exam Study Set
Questions And Answers
What is the major source of precision error in clinical practice? -
correct answer ✅Technologist
What is the percentage of trabecular bone in the skeleton? -
correct answer ✅20 %
The forearm is not used to monitor the effects of therapy for
osteoporosis because....... -
correct answer ✅rate of change in BMD is too slow
What site is mostly composed of cortical bone? -
correct answer ✅Proximal forearm
What are the advantages of QUS over x-ray methodologies for BMD
measurement? -
correct answer ✅-ultrasound is comparatively inexpensive
-patients are not subjected to ionizing radiation
-ultrasound exams are quick to perform
, ARRT Bone Density Exam Study Set
Questions And Answers
What is the name of the isotope that was used in SPA? -
correct answer ✅Iodine-125
What is the texture index that evaluates the pixel gray-level
variations in lumber spine DXA images? -
correct answer ✅TBS (Trabecular Bone Score)
When does type 2 primary osteoporosis generally occur? -
correct answer ✅after age 70
What technique used images of the hand and an aluminum wedge?
-
correct answer ✅RA (Radiograhic Absorptiometry)
New bone is formed by the ___________? -
correct answer ✅osteoblasts
Cancellous bone is also known as _______________? -
correct answer ✅Trabecular bone
