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BONE DENSITOMETRY LATEST EXAM 2026
The bones of the inferior and anterior portion of the skull are known as what?
Sternum.
Facial bones.
Cranium.
Temple.
Facial bones.
There are 206 individual bones in the adult body. The bones in the body are
arranged in 2 main divisions. The axial skeleton is composed of the skull, hyoid,
auditory ossicles, ribs, sternum, and vertebral column. The appendicular skeleton is
composed of the lower limbs, upper limbs, pelvic girdle, and pectoral girdle. The
skull is composed of 22 bones. 21 bones in the skull are fused together. The bones
in the superior portion of the skull are referred to as the cranium. The cranium
protects the brain from damage. The bones of the inferior and anterior portion of
the skull are known as facial bones. Facial bones support the mouth, eyes, and
nose.
,The patella is also known as what?
Collarbone.
Kneecap.
Elbow.
Ribcage.
Kneecap.
There are 206 individual bones in the adult body. The appendicular skeleton is
composed of the lower limbs, upper limbs, pelvic girdle, and pectoral girdle. The
largest bone found in the human body is the femur. It is the only bone found in the
thigh region. The kneecap is the patella. The tibia and fibula are the bones found in
the lower leg. Each foot has 7 tarsal bones. The foot has 5 metatarsals. Every toe,
minus the big toe, has 3 phalanges. Each big toe has 2 phalanges.
Bone densitometry scans that are spread months apart to calculate the changes in
bone density is called:
Follow up scanning
Evaluation check ups
Serial scan
Monitoring scan
Serial scan
,Serial scans are performed sequentially, which means they are performed at
intervals for instance at 12 months, 18 months or 12 months. The serial scans are
done to measure the bone density and to determine if there has been changes in the
bone density since the last scan. Serial scans work best if the scans are performed
on the same scanner. If a new scanner is used, it should be calibrated to the original
values and parameters of the original scanner.
VFAs use which of the following?
Multiple injections.
High doses of radiation.
Sound waves.
DEXA.
DEXA
VFA stands for Vertebral fracture assessment. It is used to assess vertebral
fractures and bone mineral density at the same time. VFA’s use DEXA. The
information gathered helps determine a person’s risk of future fractures.
Which of the following can affect bone remodeling?
Pathology.
Hormones.
Age.
, All of the above.
All of the above
The bone remodeling cycle is crucial for both bone mass and skeletal micro-
architecture. Bone remodeling includes osteocytes, osteoclasts, and osteoblasts on
a cellular level. Osteoclasts perform until they are terminated by apoptosis. Then
osteoblasts begin working. The system is initiated by osteocyctes. It is regulated by
both osteoblasts and osteoclasts. The cycle can be affected by age, hormones and
pathology.
One way a precision error occurs is:
The technologist
The manufacturer of the DXA scan
The confidence interval value
The breakdown of the scanning device
The technologist
There are three aspects, the technologist, the patient and the actual equipment, that
impact precision errors and inaccuracies when DXA scans are performed.
Precision is the process of creating the same numerical results when a test is
repeated exactly like the previous test was performed. With precision errors, there
is no way to truly reproduce the same results accurately when performing a
densitometry even if the patient does not have any changes in the bone density.
However, precision assessments or a precision study is conducted to determine if
there is a change by determining if the precision error or precision is exceeded.