A bone-density test evaluates the strength of your bones by measuring a small part of one bone or a few bones. These assessed bones represent the rest of your skeleton. The most common test, the DXA test, uses a small amount of x rays for this measurement.
The areas most commonly measured are the hip, the lumbar spine in the lower back, and the forearm. The test results show how your bone density compares to that of a normal young adult, as well as to other people in your age group. The results will show whether your bone density is at a point that places you at higher risk for injury.
Whether your score is low or high, your doctor might recommend adding calcium and vitamin D to your diet, starting a regular exercise program, and using medications to build bone.
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