DEXA
What is a Bone Density Scan (DEXA)?
It is also called dual-energy x-ray absorptiometry.
DEXA is used to measure bone loss.
DEXA is most often performed on the lower spine, hips, and wrists.
What are some common uses of the procedure?
It is most often used to diagnose osteoporosis.
DEXA is also effective in tracking the effects of treatment for osteoporosis and other conditions that cause bone loss.
It can assess an individual’s risk for developing fractures.
How is the procedure performed?
You will be asked to not take your calcium supplements for at least 24 hours before your exam.
You should wear loose, comfortable clothing, avoiding garments that have zippers, belts, or buttons made of metal.
You will be asked to lie on a large, flat table and an under an “arm” suspended overhead. The arm swings away so it is not over you all the time.
To assess the hip and spine the patient’s foot is placed in a brace that rotates the hip forward.
The patient will be asked to hold still and not talk while the scan arm moves over the top of them.
The patient will also have their height and weight measured.
What are the benefits of DEXA?
DEXA is a quick and painless procedure. It is a non-invasive procedure. The amount of radiation used is extremely small - less than one-tenth the dose of a standard chest x-ray.
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