BONE DENSITY 2026 QUESTIONS AND ANSWERS
GUARANTEE A+
✔✔What therapy mimics the effects of estrogen on bone and has anti-estrogenetic
effects in other tissue? - ✔✔Ralaxofene (Evista)
✔✔In both men and women, bone mass increases until approximately what age? -
✔✔30 years
✔✔If you get a new DXA unit, what must be performed in order to compare studies? -
✔✔Cross calibration - it compares the old machine to the new one
✔✔Which acronym describes the least amount of BMD change that can be statistically
significant? - ✔✔LSC - least significant change
✔✔Two types of bone - ✔✔Cortical and trabecular
✔✔When a patient comes back for a follow up study, regarding the rate of change, what
parameters are being used to calculate the rate of change? - ✔✔BMD
✔✔The shoulders of the patient should be squared with their - ✔✔Pelvis
✔✔What are the preferred sites for the measurement of bone density in children? -
✔✔Spine and total body less head
✔✔What percentage of the skeletal body mass is cortical bone? - ✔✔80%
✔✔On a DXA report, the bone mineral density is expressed as - ✔✔Grams per
centimeter squared g/cm2
✔✔How many times should you scan a patient with in vevo precision study? - ✔✔30
patients and scan them twice, 15 patients and scan them three times
✔✔How many places to the right of the decimal point is used in reporting BMD? - ✔✔3
✔✔The name of the forearm sites are based on what? - ✔✔The location of the site on
the bone in relationship to the overall length of the ulna
✔✔A post menopausal woman with a femoral neck T score of -2.0 SD below a young
adult is to be classified as - ✔✔Osteopenia
✔✔What happens when there is an in balance or uncoupling of the remodeling cycle? -
✔✔Net loss in bone mass
, ✔✔A technologist should perform a precision study in order to - ✔✔Calculate the LSC
✔✔Regarding the Shewart Rules, the control limits are based on what percentage of
the average values? - ✔✔1.5%
✔✔The sum of the data values divided by the number of values - ✔✔Mean
✔✔A DXA system that employs a rare earth filtered x-ray source uses what type of
detector - ✔✔Pulse counting
✔✔The characteristic shapes of the vertebrae seen on the DXA image are primarily
based on the appearance of the - ✔✔Posterior elements
✔✔Cortical bone makes up what question - ✔✔Outer cover of bones
✔✔Percentage of trabecular bone found in the PA spine as measured by DXA -
✔✔66%
✔✔The forearm, pelvis, and scapula all belong to which skeletal classification? -
✔✔Appendicular
✔✔The WHO criteria for diagnosing osteoporosis was initially to apply to - ✔✔Only
postmenopausal Caucasian women
✔✔How many degrees should you rotate the femur when positioning for a proximal
femur scan? - ✔✔15° to 25°
✔✔When should Z scores be used to make a diagnosis, instead of T scores? -
✔✔Males or females under age 20
✔✔What is the name of the isotope used in dual photon absorptiometry -
✔✔Gadolinium - 153
✔✔What bone parameter is measured in grams? - ✔✔BMC
✔✔What does the wards area cover? - ✔✔The region of the proximal femur lying on the
border of the femoral neck and the greater trochanter
✔✔What has the highest percentage of cortical bone? - ✔✔33% radius
✔✔What is the age range used with FRAX? - ✔✔40 to 90 years
GUARANTEE A+
✔✔What therapy mimics the effects of estrogen on bone and has anti-estrogenetic
effects in other tissue? - ✔✔Ralaxofene (Evista)
✔✔In both men and women, bone mass increases until approximately what age? -
✔✔30 years
✔✔If you get a new DXA unit, what must be performed in order to compare studies? -
✔✔Cross calibration - it compares the old machine to the new one
✔✔Which acronym describes the least amount of BMD change that can be statistically
significant? - ✔✔LSC - least significant change
✔✔Two types of bone - ✔✔Cortical and trabecular
✔✔When a patient comes back for a follow up study, regarding the rate of change, what
parameters are being used to calculate the rate of change? - ✔✔BMD
✔✔The shoulders of the patient should be squared with their - ✔✔Pelvis
✔✔What are the preferred sites for the measurement of bone density in children? -
✔✔Spine and total body less head
✔✔What percentage of the skeletal body mass is cortical bone? - ✔✔80%
✔✔On a DXA report, the bone mineral density is expressed as - ✔✔Grams per
centimeter squared g/cm2
✔✔How many times should you scan a patient with in vevo precision study? - ✔✔30
patients and scan them twice, 15 patients and scan them three times
✔✔How many places to the right of the decimal point is used in reporting BMD? - ✔✔3
✔✔The name of the forearm sites are based on what? - ✔✔The location of the site on
the bone in relationship to the overall length of the ulna
✔✔A post menopausal woman with a femoral neck T score of -2.0 SD below a young
adult is to be classified as - ✔✔Osteopenia
✔✔What happens when there is an in balance or uncoupling of the remodeling cycle? -
✔✔Net loss in bone mass
, ✔✔A technologist should perform a precision study in order to - ✔✔Calculate the LSC
✔✔Regarding the Shewart Rules, the control limits are based on what percentage of
the average values? - ✔✔1.5%
✔✔The sum of the data values divided by the number of values - ✔✔Mean
✔✔A DXA system that employs a rare earth filtered x-ray source uses what type of
detector - ✔✔Pulse counting
✔✔The characteristic shapes of the vertebrae seen on the DXA image are primarily
based on the appearance of the - ✔✔Posterior elements
✔✔Cortical bone makes up what question - ✔✔Outer cover of bones
✔✔Percentage of trabecular bone found in the PA spine as measured by DXA -
✔✔66%
✔✔The forearm, pelvis, and scapula all belong to which skeletal classification? -
✔✔Appendicular
✔✔The WHO criteria for diagnosing osteoporosis was initially to apply to - ✔✔Only
postmenopausal Caucasian women
✔✔How many degrees should you rotate the femur when positioning for a proximal
femur scan? - ✔✔15° to 25°
✔✔When should Z scores be used to make a diagnosis, instead of T scores? -
✔✔Males or females under age 20
✔✔What is the name of the isotope used in dual photon absorptiometry -
✔✔Gadolinium - 153
✔✔What bone parameter is measured in grams? - ✔✔BMC
✔✔What does the wards area cover? - ✔✔The region of the proximal femur lying on the
border of the femoral neck and the greater trochanter
✔✔What has the highest percentage of cortical bone? - ✔✔33% radius
✔✔What is the age range used with FRAX? - ✔✔40 to 90 years
