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A bone density scan is a simple, non-invasive test that measures a person's bone density or volume of calcium and minerals within bone tissue. The test uses a low dose X-ray to detect signs of bone thinning and mineral loss. During the procedure, you will lie on a table scanner.
A bone density scan requires little preparation. Wear loose, comfortable clothing with no metal zippers to your appointment. You may eat normally and take medications as prescribed by your doctor the morning of your test. However, do not take any calcium supplements, vitamin pills, or mineral supplements 24 hours prior to your appointment. In addition, you must not have had any exams involving barium or radioisotopes within the last month.