A process whereby the bone is exposed to two distinct energies of x-rays to determine the amount of calcium and other minerals present. Bone densitometry, which often examines the lower spine, hip, lower arm, wrist, fingers, and heel, reveals the strength and thickness of a bone. It is used to identify osteoporosis, a disorder marked by low Bone Densitometers, to assess how effectively treatment for osteoporosis is working, and to forecast the likelihood that bones may shatter.
Bone densitometry also assesses the amount of fat and muscle in particular body regions, including the arms, legs, and pelvis. Also known as a DEXA scan, a dual energy x-ray absorptiometry, a BMD scan, and a DXA scan. Osteopenia and osteoporosis are mostly diagnosed with a bone density test. Your risk of fracture in the future is also estimated using it. Typically, the spine, lower arm, and hip Bone Densitometers are the sites of the testing technique to gauge bone density. Because just one bone site is checked, portable testing is less accurate than nonportable testing because it can only test the radius, one of the two bones of the lower arm, the wrist, the fingers, or the heel. Typical X-rays could reveal weaker bones. But by the time bone fragility is visible on routine X-rays, it can be too late to be treated. At an early stage when treatment may be helpful, bone densitometry testing can detect declining bone density and strength. Bone mineral density is assessed using a bone density test (BMD). Your BMD is compared to two norms: age-matched adults and healthy young adults (your T-score) (your Z-score). First, the BMD results of healthy 25–35-year–old adults who share your sex and race are compared to your BMD results. The variation between your Bone Densitometers and that of young people in good health is known as the standard deviation (SD). Your T-score is this outcome. Bones with positive T-scores are stronger than those with negative T-scores are weaker than those with negative T-scores. Every SD below normal generally doubles the risk of a bone fracture. In light of this, someone with a BMD that is 1 SD below normal (i.e., a T-score of -1) is twice as likely to suffer a bone fracture as someone with a normal BMD. Once this information is known, those who are at a high risk of bone fracture can receive treatment with the intention of preventing further fractures. A bone density that is more than 2.5 SD below the young adult mean and one or more prior fractures from osteoporosis are considered signs of severe (established) osteoporosis. Second, your Bone Densitometers is contrasted with an age-appropriate standard. It is known as your Z-score. The same formula is used to produce Z-scores, but comparisons are made to people who are similar to you in terms of age, sex, race, height, and weight.
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