Bone Densitometry Test (DEXA Scan)

Bone densitometry, most often done with dual-energy X-ray absorptiometry (DEXA), measures bone mineral density. It is used to diagnose osteoporosis, estimate fracture risk, and monitor bone health over time.

• No fasting is required.
• Wear clothing without zippers, belts, or metal buttons.
• Tell your provider if you recently had a barium study or CT with contrast.

You will lie on a padded table while a scanning arm passes over the hip and spine. The procedure is painless, takes about 10–20 minutes, and uses very low radiation.

• The radiation dose is minimal, lower than a standard chest X-ray.
• No known significant risks.

Results are reported as T-scores and Z-scores. Your doctor will explain whether your bone density is normal, low (osteopenia), or consistent with osteoporosis, and may recommend lifestyle changes or medication.