A DXA (dual-energy X-ray absorptiometry) scan is a quick, noninvasive imaging test used to measure bone density and assess the risk of osteoporosis and fractures. The scan most often evaluates the hip and spine and uses very low levels of X-rays to determine how strong your bones are. The test typically takes about 10–20 minutes and does not require needles or injections.
How to Prepare for Your DXA Scan
- Wear comfortable clothing without metal (such as zippers, snaps, or underwire). Otherwise, you may be asked to change into a gown.
- Do not take calcium supplements, multivitamins, or antacids containing calcium (such as Tums®) the day of your exam, as they can affect the accuracy of the results.
- Tell your care team about any vitamins or supplements you take so they can advise you before your appointment.
- Let your scheduler know if you’ve had imaging tests that use contrast (such as barium or iodine) within the past two weeks, as these may require rescheduling your DXA scan.