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DEXA
(Bone Densitometry)
Bone
is a living tissue that constantly breaks down
and reforms. After age 35, bone breaks down faster
than it forms. Around menopause, bone loss occurs
at a much greater rate, leading to osteoporosis.
You can evaluate the health of your bones with
a bone density exam.
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Preparation |
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You
should not take vitamin pills, calcium
supplements or antacids the morning of the
exam. |
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Have
no nuclear medicine contrast studies in the
three weeks preceding exam. |
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Have
no barium studies in the week preceding the
exam. |
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You
must not be pregnant. |
Exam
The exam should take no more than a total of 30
minutes from start to finish. The testing uses
less radiation than a standard chest x-ray.
Your
readings will then be compared to reference readings
taken from adults of your sex while at their peak
bone mass. The result of the comparison is called
a T-score. This T-score will tell your doctor
where your bone density compares to the normal
range.After
you have had a baseline study done, your doctor
can offer advice about diet, lifestyle and medication
based on your T-score. Treatments are available
that can actually increase your bone density and
slow the rate of loss.
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