How Do They Do A Bone Density Test?

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Alternative Names

BMD test; Bone density test; Bone densitometry; DEXA scan; DXA; Dual-energy x-ray absorptiometry; p-DEXA


Normal Values

The results of your test are usually reported as a "T score" and "Z score."

  • The T score compares your bone density with that of healthy young women.
  • The Z score compares your bone density with that of other people of your age, gender, and race.

In either score, a negative number means you have thinner bones than the standard. The more negative the number, the higher...

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Bone density scan

Learn about how doctors measure bone density.... Read more »