What is the expected T-score range for a healthy individual?

• A. -1.5 or higher
• B. -1.0 or higher
• C. 0.0 or higher
• D. -2.0 or higher

Answer: (B)

The T-score is a standard measurement used in bone densitometry to assess bone mineral density (BMD) compared to a healthy young adult population. A T-score of -1.0 or higher indicates that an individual has normal bone density. This range is generally accepted in clinical practice as representing healthy bone density, meaning that the individual's bones are not at an increased risk for fractures or osteoporosis.

Values lower than -1.0, particularly those between -1.0 and -2.5, suggest osteopenia, which is a condition where bone density is lower than normal but not low enough to be classified as osteoporosis. A T-score of -2.5 or lower indicates osteoporosis, a condition characterized by significantly reduced bone mineral density.

Therefore, since a T-score of -1.0 or higher categorizes an individual as having normal bone density, this choice directly aligns with the established diagnostic criteria for assessing bone health.