Bone Mineral Density Test
Alternate Names : BMD Test
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Normal Values
The results of your test are usually reported as a "T score" and "Z score."
- The T score compares your bone density to a 30-year old.
- The Z score compares your bone density to other people of the same age, gender, and race.
In either score, a negative number means you have thinner bones than the standard. The more negative the number, the thinner your bones. A T score is within the normal range if it is a positive number, or at least no more negative than -1.0. (For example, -0.5 is within the normal range, although it is getting borderline.)
Your doctor will help you understand the results.
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