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Osteoporosis Screening   hip bone on left.. vertebrae on left. The doctor is pointing to a fracture in the spine.
DEXA or Dual Energy X-Ray Absorptiometry exams are one of the ways we can help your physician tell if your bones have lost density. When bones lose density to a certain degree, that is a condition called osteoporosis. Osteoporosis is a disease process that makes your bones lose strength. They become porous and brittle and, understandably, they more easily break. Osteoporosis can lead to fractures in any bone, but the most important to your overall quantity and quality of life are your spine and your hips. Studies have shown that one in five women who fractures her hip will die within one year. 

Women who are most at risk for osteoporosis are women who smoke, are inactive, abuse alcohol, have had inadequate calcium intake,  take certain medicines (steroids and thyroid medicines), had early menopause, are Caucasian or Asian, or are of small build.

In the "good old days", we just took for granted that as women aged they became stooped. We thought that this was an unavoidable process, or certainly not reversible. Things are different now, Thanks to this DEXA technology, we can find out early if you are losing bone density. There are also treatments for osteoporosis that are new. These have been shown to be effective in retaining and even increasing bone density. 

More information on Osteoporosis.

 

 

How DEXA works
DEXA works much like an X-ray, sending a tiny amount of mineral radiation through a targeted part of your body. At SIRA, we target the spine and the hip. This amount of radiation is about 1/20th the amount in a chest X-ray. Denser areas will give off different readings than less dense areas and so the computer can tell us the status of your bones.
 

Amy, a DEXA technologist, explains how the scanner works.

 

 

 

 

bone guy

 

During your exam
Wear comfortable, loose-fitting clothing to your exam. Do not wear clothing with metal buckles, zippers or buttons. A sweat suit is a good choice. We have gowns available should you need to change clothes.

The technologist will take a history asking you about your family history of osteoporosis, previous results of osteoporosis screening tests, fractures, and whether or not you are menopausal.

The exam itself is completely painless and takes less than ten minutes. For the scan of your vertebra, you will lie on a table with your lower legs propped up on a special cushion. Then the technologist will remove the cushion to do the scan of your hip. This process, from start to finish, takes about 20 minutse. 

Be sure to ask your technologist if you have any questions about the exam.

 

 

 

 
You cannot have DEXA if:
  • it has been less than 5 days since you had a procedure involving barium.
  • you are undergoing radioactive iodine therapy for your thyroid.
  • You weigh over 270 pounds.
  • You cannot walk.

 

  Your results

When your doctor orders your exam, you will be told how to get your results. Your results should be in your hands within a week. If it has been over a week and you have not heard, do not assume everything is normal. Call your physician's office for your results or contact SIRA.

 

 

 
Further Reading

National Osteoporosis Foundation This site has much good information written in a way that you can understand. Tips for how to prevent osteoporosis, treat it, and even how to dress fashionably if your posture is affected by osteoporosis.

 

 

     
       
       

 

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