Various factors limit the utility of repeat DEXA scans more often than every two years, particularly in stable patients. These include the expected rate of bone loss, which is unlikely to be detected at smaller intervals, and measurement error, which may make repeat measures unreliable. This may be compounded if different DEXA machines are used. In stable patients, the interval between scans may be prolonged, or a repeat may not be necessary.
Conditions: Osteoporosis, Osteopenia, Bone Mineral Density (BMD), Fracture
Diagnostic Tests: Dual Energy X-Ray Absorptiometry Scans (DEXA), Bone Density Test
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Sources
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