Osteoporosis is a disorder of the bones that renders them weak and brittle. It can present without symptoms and at any age though it is often associated with advanced age. Osteoporosis can be treated with medication and dietary modification and can even be prevented by insuring proper intake of calcium and vitamin D and by engaging in regular exercise. A bone density test (densitometry or DXA scan) determines risk for developing osteoporosis. It measures how many grams of minerals, such as calcium, are present in bones. Osteoporosis testing can also monitor treatment of confirmed cases.
What to expect
Bone density testing is fairly straight-forward and does not take long. It doesn't even require the patient to remove clothing. Two types of machines are used, central devices and peripheral devices. Central devices scan the hip and spine. They are widely regarded as more accurate and scans take a mere 15 minutes to complete. Peripheral devices scan the forearm or wrist, and this type of test is more affordable than testing with central devices.
prepare
Preparation for bone density scan is minimal. It is not painful, not invasive and requires almost no changes in routine ahead of time. Barium swallow or testing with radioisotopes can affect the outcome so the scan shouldn't be scheduled within two weeks of these tests. It is ideal to eat normally before the scan. No intake will interfere with bone density testing other than current intake of calcium and radioisotopes, as mentioned. If osteoporosis has already been diagnosed, current medications should be discontinued for the day of the scan but may be resumed after the test is complete. Calcium supplements should be avoided 24 hours before testing but again, can be resumed shortly thereafter. Results of testing generally take a matter of days to receive back.
Tags: bone density, central devices, density testing, devices scan, intake calcium
