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BMD or Dexa Scan is the assessment of the amount of bone mineral. The measurement is painless and non-invasive and involves low radiation exposure. The test works by measuring a specific bone or set of bones, usually the spine, hip, and wrist. The density of these bones is then compared with an average index based on age, sex, and size. The resulting comparison is used to determine the risk of fractures and the stage of osteoporosis.

Why is a BMD performed?

The prevalence of osteoporosis in women between 35 and 60 years is 25%. If detected early
ones mass can be increased with various drugs. The test is usually performed for:

  • People with risk factors for weak bones, ex: elderly adults, middle aged women.
  • Checking previous bone fractures from minor trauma, rheumatoid arthritis, low body weight, etc.
  • Vertebral abnormalities
  • Individuals receiving, or planning to receive, long-term steroid therapy
  • Primary hyperparathyroidism.
  • Assessing the response or efficacy of drug therapy.
  • Vitamin D deficiency

How is a BMD performed?

You simply lie on a bench or table with the equipment while the test is performed. Avoid wearing clothing with buttons, snaps, or zippers or you may be asked to change into a hospital gown.

Risks of a Bone Mineral Density Test

There is a small risk associated with radiation exposure because BMD uses X-rays. Inform your doctor if you are pregnant or believe you could be pregnant.

After a Bone Mineral Density Test

The test results will be reviewed and your T-scores are based on the bone mineral density of a healthy 30-year-old compared to your own value. A score of 0 is considered ideal.

Depending on the results further evaluation or treatment will be advised.

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