What is a DEXA scan?

What is a DEXA scan?

• A. A blood test measuring calcium and phosphorus
• B. A CT scan of the spine for density
• C. A bone biopsy to assess density
• D. Measurement of bone mineral density that provides T-scores to assess fracture risk

Answer: (D)

Bone mineral density is measured to gauge osteoporosis risk and predict fractures. A DEXA scan uses low-dose X-rays to quantify bone density, typically at the hip and spine, and it provides a T-score that compares a patient’s density with that of a healthy young adult. This T-score framework helps classify bone health and estimate fracture risk, guiding treatment decisions. It isn’t a blood test, a CT density assessment, or a bone biopsy.

Bone mineral density is measured to gauge osteoporosis risk and predict fractures. A DEXA scan uses low-dose X-rays to quantify bone density, typically at the hip and spine, and it provides a T-score that compares a patient’s density with that of a healthy young adult. This T-score framework helps classify bone health and estimate fracture risk, guiding treatment decisions. It isn’t a blood test, a CT density assessment, or a bone biopsy.