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If you are exactly equal to the peak bone mass of an average year-old, you do not deviate at all from the average so your T-score would be 0 standard deviations SD.
Some people have low bone density. You may hear this called osteopenia. Having a T-score between A Z-score compares your bone density to the average bone density of people your own age and gender. For example, if you are a year-old female, a Z-score compares your bone density to the average bone density of year-old females.
A Z-score is helpful in diagnosing secondary osteoporosis and is always used for children, young adults, women who are pre-menopausal, and men under age If you have a very low Z-score more than 2 standard deviations below other individuals your age , your doctor should consider whether other medical conditions or medications may be causing lower than expected bone density.
Although you may have low bone density when you have your first test, your doctor cannot tell if you have lost bone density or if you have always had lower bone density due to family or medical history.
Your peak adult bone mass may have been below that of the average individual. For example, if you have a T-score of There are lab tests that can help your doctor determine if you are currently losing bone density. American Bone Health is here to help guide you to better bone health. If you would like more information or to speak with one of our experts, please fill out the form below and we will contact you and discuss your concerns. This article discusses bone density tests and whether they may be necessary for a person with arthritis.
We also examine other arthritis diagnostic tests and other uses for a bone density test. A bone density test is a painless procedure similar to an X-ray that requires no preparation. The screening takes around 15 minutes and measures the strength, or mineral density, of bone in the hip and lumbar spine.
Doctors may recommend a peripheral bone density test for screening purposes to determine if a standard bone density test is necessary for some individuals. A peripheral test measures bone density in the:. A bone density test determines whether people may have osteoporosis, a condition involving weakened bones and a higher risk of fractures.
The Office of Disease Prevention and Health Promotion states that because osteoporosis has no symptoms, a person may not know they have the condition until they break a bone. Therefore, the lower the score, the lower the bone density. The scoring system is as follows:. Bone density test scores do not indicate arthritis, which is an inflammatory condition of the joints.
However, a doctor may order this screening for rheumatoid arthritis because people with arthritis also tend to have low bone mineral density. According to the National Institutes of Health NIH , individuals with rheumatoid arthritis have a higher risk of osteoporosis due to:. A study states that osteoporosis in people with rheumatoid arthritis occurs at approximately twice the rate than in the general population. Additionally, individuals with rheumatoid arthritis may experience fractures with higher bone mineral densities.
Because of the strong relationship between rheumatoid arthritis and osteoporosis, the study authors proposed using different techniques to measures bone density in early-diagnosed cases. A higher bone density means good bone health. Some factors, including genetics, demographics, body and weight mass index, healthy lifestyle, and so on, contribute to overall bone health.
The obtained bone density test results are compared with the bone mineral density of a healthy young adult.
The person is provided with a T-score that indicates their final results. The results of the Dexa bone density test are measured in standard deviations. A T-score of 0 indicates your bone mineral density is normal. The bone density score can change as per the bone mineral density of the person. Low bone mass: A bone density between -1 or Osteoporosis: A bone density with a The case turns into severe osteoporosis if there is a bone fracture as well.
Take the example of strength training that often leads to building muscle strength and mass, but it also contributes to bone density. The stronger your bones, the less is the chance for a fracture. This content does not have an Arabic version. Overview A bone density test determines if you have osteoporosis — a disorder characterized by bones that are more fragile and more likely to break.
Bone density Open pop-up dialog box Close. Bone density With bone loss, the outer shell of a bone becomes thinner and the interior becomes more porous. Request an Appointment at Mayo Clinic. Locations for bone density testing Open pop-up dialog box Close. Locations for bone density testing Bone density tests are usually done on bones in the spine vertebrae , hip, forearm, wrist, fingers and heel. Share on: Facebook Twitter. Show references Osteoporosis overview.
Accessed Nov. Lewiecki EM. Overview of dual-energy X-ray absorptiometry. Bone densitometry. Radiological Society of North America.
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