A T-score of -2.5 or lower on DXA defines osteoporosis.

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Multiple Choice

A T-score of -2.5 or lower on DXA defines osteoporosis.

Explanation:
T-score thresholds on DXA determine osteoporosis. The T-score compares a person’s bone density to the average of a young healthy adult, in standard deviation units. Clinically, normal density is a T-score of -1.0 or higher, osteopenia is between -1.0 and -2.5, and osteoporosis is a T-score of -2.5 or lower. Therefore, a T-score of -2.5 or lower defines osteoporosis, making the statement true. A result like -3.5 would also indicate osteoporosis, while -1.0 is not osteoporosis.

T-score thresholds on DXA determine osteoporosis. The T-score compares a person’s bone density to the average of a young healthy adult, in standard deviation units. Clinically, normal density is a T-score of -1.0 or higher, osteopenia is between -1.0 and -2.5, and osteoporosis is a T-score of -2.5 or lower. Therefore, a T-score of -2.5 or lower defines osteoporosis, making the statement true. A result like -3.5 would also indicate osteoporosis, while -1.0 is not osteoporosis.

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