DEXA stands for what type of measurement?

DEXA stands for what type of measurement?

• A. Dual-Energy X-ray Absorptiometry
• B. Direct X-ray Assessment
• C. Dynamic External Anomaly Analysis
• D. Digital X-ray and Analysis

Answer: (A)

DEXA measures bone mineral density using two X-ray beams at different energy levels. By comparing how each energy is absorbed, the machine separates bone from soft tissue and calculates bone density (usually expressed in g/cm2). This dual-energy approach is what the term Dual-Energy X-ray Absorptiometry describes, making it the correct and precise name for the technique. Other options don’t fit because they describe generic or unrelated X-ray concepts and don’t capture the dual-energy method used to quantify bone density.

DEXA measures bone mineral density using two X-ray beams at different energy levels. By comparing how each energy is absorbed, the machine separates bone from soft tissue and calculates bone density (usually expressed in g/cm2). This dual-energy approach is what the term Dual-Energy X-ray Absorptiometry describes, making it the correct and precise name for the technique.

Other options don’t fit because they describe generic or unrelated X-ray concepts and don’t capture the dual-energy method used to quantify bone density.