DEAR DR. ROACH: The results for my last bone density test show not only a T-score but also a Z-score. For my spine (L1 through L4), the T-score is -3.4, while the Z-score is -1.4. Can you please ...

Add Yahoo as a preferred source to see more of our stories on Google. Are you due for a bone density test? The U.S. Preventive Services Task Force announced updated osteoporosis screening guidelines ...

Dear Dr. Roach: The results for my last bone density test show not only a T-score but also a Z-score. For my spine (L1 through L4), the T-score is -3.4, while the Z-score is -1.4. Can you please ...

Physicians typically measure two areas—the spine and hip—and then compare your actual bone density to the density your bones should be to resist breaking (which is the bone density of a 30-year-old).

On the T-score scale, 0 represents normal, healthy bone density of a 30-year-old person (the age of peak bone density). T-scores above 0 and slightly below 0 are within the normal range. Your score ...

BMD datasets are machine-specific, therefore the correct DXA manufacturer must be selected. Please note the age ranges available for the instruments (see below-right, or refer to the graphs). If you ...