Bone densitometry, also known as Dual-energy X-ray Absorptiometry (DXA or DEXA), is a type of imaging test that measures bone mineral density (BMD), primarily in the femur of both hips. It is a key tool in diagnosing and monitoring osteoporosis, a disease characterized by low bone mass and deterioration of bone tissue, leading to increased bone fragility and risk of fracture.
This test is especially significant for assessing the health of the femur bones, as hip fractures can have serious long-term consequences, including chronic pain, reduced mobility, disability, and an increased risk of death. Bone densitometry can help predict the likelihood of future fractures and allow for timely intervention to enhance bone health.
Preparing for a bone densitometry test of both hips is relatively simple:
Note: Home Sample Collection is only for Pathology lab tests.
During the test, you'll be asked to lie on a padded table while a scanner passes over your body, specifically targeting both hip areas. The procedure is non-invasive and pain-free.
A bone densitometry test usually takes around 10-30 minutes.
Yes, the test is generally safe, exposing you to a very minimal amount of radiation, less than the exposure from a standard X-ray.
A bone densitometry test helps diagnose osteoporosis, assess an individual's risk for developing fractures, and monitor osteoporosis treatment. The test is often recommended for postmenopausal women, men aged 50 and above, and those with certain risk factors for osteoporosis.
Your test results will be given as two scores: a T-score and a Z-score. The T-score compares your bone density with what is normally expected in a healthy young adult of your sex, while the Z-score compares your bone density to what is normally expected for someone of your age, sex, weight, and ethnic or racial origin.
If your bone density is lower than normal, you may be diagnosed with osteopenia or osteoporosis. Your doctor will recommend appropriate treatment or preventive measures, which may include medication, dietary changes, exercise, and lifestyle modifications.
Yes, certain lifestyle changes such as regular exercise, maintaining a diet rich in calcium and vitamin D, and avoiding harmful habits like smoking and excessive alcohol consumption can improve bone health.
If your test results are abnormal, you should consult an endocrinologist or a rheumatologist, who specialize in bone health.
Bone densitometry is a crucial diagnostic tool in the battle against osteoporosis, a common yet often silent disease until a fracture occurs. The test is simple, painless, and non-invasive. If you've been advised to undergo this test, rest assured that you are taking an important step in ensuring your long-term bone health. Early detection of osteoporosis can lead to effective treatment strategies that can slow the disease's progression, prevent fractures, and help maintain a high quality of life.