Bone Density Registry Review 2 || 100% Errorless Answers.
Vertebral Fracture Assesment correct answers -Use low does of radiation
-Assess BMD and fractures
-Can't assess soft tissue abnormalities
Carbon Dioxide Fire Extinguisher correct answers Works best for electrical fires
Secondary Osteoporosis correct answers -Occurs because of other medical conditions
(Leukemia, PHPT)
-Can occur at any age
-Can develop from other skeletal disorders
Calcitonin correct answers -Hormone Treatment for Osteoporosis that forms naturally in the
thyroid.
-It can be used to increase bone mass moderately.
-Used to decreas the rate osteoclasts absorb bone.
-Can only be given to postmenopausal women of 5 years or more
Regions of Interest (ROI) correct answers The area selected for bone density scanning and the
area where the calculation of the BMD occurs.
Components of DXA correct answers Workstation unit, phantom and positioning equipment, k-
edge filtration, and energy switching system.
DXA Workstation Components correct answers Display monitor, computer, keyboard, mouse,
printer, power module
Juvenile Osteoporosis correct answers -Diagnosed in children 8-14
-Patient may experience normal gonadal functioning, rapid onset of parin in the bones, or sustain
a fx from a traumatic event
Pencil Beam correct answers -Scan time 5-10 minutes
Laser Radiation correct answers A laser is used to effectively position scanner
L-spine correct answers -Point on the spine that curves (Lordotic Curve)
-3 Main parts (Arch, processes, body)
DXA Scan correct answers -Can measure multiple aspects related to the bone, BMC, BMD, fat-
free mass, and estimates the body's fat percentage. Any changes to the mode geometry can
impact measurements.
Nucleus correct answers -Found inside the intervertebral discs
-Gel filled center
, Ulna correct answers -Has long and curved appearance
-Allows motion and supports arm
-Attaches to triceps brachii, supinator, pronator teres, pronator quadrates, flexor digitorum
superficialis
-Has Trochlear Notch, Coronoid Process, Olecranon Process
Head of Radius correct answers -Disk Shaped
-Proximal end
-Articulates with Radial Notch of Ulna
Proximal Femur Positioning correct answers The Midline needs to be perpindicular with the
neck box
Proximal Femur ROIs correct answers Trochanteric region, Ward's region (triangle), the neck,
and Shaft
Cross-Calibration correct answers -Calculates and compares changes between the initial and new
DXA machines
-Studies are considered as in vivo and in vitro(use phantoms)
-Studies are used for new machins and 60-100 phantoms are used to establish a baseline
measurement for BMD
BMC correct answers -Calculated by BMD and Area
-BMD(g/cm2) x Area(cm2)
-BMD(mg/cm2) x Volume(cm3) -- QCT
External Quality Control correct answers -Facilities are given samples and asked to process them
as they would their own and are then checked by the main facility.
-Takes longer but more accurate results
-Requires calibrated test weight
Internal Quality Control correct answers -Having a group of activities performes by the facility
to ensure that equipment and staff are working properly in the set limits.
-Quicker with less accurate results
Fixed Calibration correct answers -Includes 2 approaches
-Associated with a reference scanned on the machine
AP Spine correct answers -The first scan of a DXA exam
-Takes 10 minutes
Automatic Exposure Control (AEC) correct answers -Made of a set of xray detectors located
behind the patient.
-Measure the radiation incident
BMD correct answers Calculated by
Vertebral Fracture Assesment correct answers -Use low does of radiation
-Assess BMD and fractures
-Can't assess soft tissue abnormalities
Carbon Dioxide Fire Extinguisher correct answers Works best for electrical fires
Secondary Osteoporosis correct answers -Occurs because of other medical conditions
(Leukemia, PHPT)
-Can occur at any age
-Can develop from other skeletal disorders
Calcitonin correct answers -Hormone Treatment for Osteoporosis that forms naturally in the
thyroid.
-It can be used to increase bone mass moderately.
-Used to decreas the rate osteoclasts absorb bone.
-Can only be given to postmenopausal women of 5 years or more
Regions of Interest (ROI) correct answers The area selected for bone density scanning and the
area where the calculation of the BMD occurs.
Components of DXA correct answers Workstation unit, phantom and positioning equipment, k-
edge filtration, and energy switching system.
DXA Workstation Components correct answers Display monitor, computer, keyboard, mouse,
printer, power module
Juvenile Osteoporosis correct answers -Diagnosed in children 8-14
-Patient may experience normal gonadal functioning, rapid onset of parin in the bones, or sustain
a fx from a traumatic event
Pencil Beam correct answers -Scan time 5-10 minutes
Laser Radiation correct answers A laser is used to effectively position scanner
L-spine correct answers -Point on the spine that curves (Lordotic Curve)
-3 Main parts (Arch, processes, body)
DXA Scan correct answers -Can measure multiple aspects related to the bone, BMC, BMD, fat-
free mass, and estimates the body's fat percentage. Any changes to the mode geometry can
impact measurements.
Nucleus correct answers -Found inside the intervertebral discs
-Gel filled center
, Ulna correct answers -Has long and curved appearance
-Allows motion and supports arm
-Attaches to triceps brachii, supinator, pronator teres, pronator quadrates, flexor digitorum
superficialis
-Has Trochlear Notch, Coronoid Process, Olecranon Process
Head of Radius correct answers -Disk Shaped
-Proximal end
-Articulates with Radial Notch of Ulna
Proximal Femur Positioning correct answers The Midline needs to be perpindicular with the
neck box
Proximal Femur ROIs correct answers Trochanteric region, Ward's region (triangle), the neck,
and Shaft
Cross-Calibration correct answers -Calculates and compares changes between the initial and new
DXA machines
-Studies are considered as in vivo and in vitro(use phantoms)
-Studies are used for new machins and 60-100 phantoms are used to establish a baseline
measurement for BMD
BMC correct answers -Calculated by BMD and Area
-BMD(g/cm2) x Area(cm2)
-BMD(mg/cm2) x Volume(cm3) -- QCT
External Quality Control correct answers -Facilities are given samples and asked to process them
as they would their own and are then checked by the main facility.
-Takes longer but more accurate results
-Requires calibrated test weight
Internal Quality Control correct answers -Having a group of activities performes by the facility
to ensure that equipment and staff are working properly in the set limits.
-Quicker with less accurate results
Fixed Calibration correct answers -Includes 2 approaches
-Associated with a reference scanned on the machine
AP Spine correct answers -The first scan of a DXA exam
-Takes 10 minutes
Automatic Exposure Control (AEC) correct answers -Made of a set of xray detectors located
behind the patient.
-Measure the radiation incident
BMD correct answers Calculated by
