CAMRT Radiography Practice Exam

Which T-Score classification indicates severe osteoporosis?

1. -1 or greater

2. Between -1 and -2.5

3. -2.5 or less with fragility fractures

4. -2.5 or less

The correct answer is: -2.5 or less with fragility fractures

The classification for severe osteoporosis aligns with the criteria set by organizations such as the World Health Organization (WHO). A T-score of -2.5 or less indicates low bone mineral density, which is a marker of osteoporosis. However, to classify it specifically as severe osteoporosis, the presence of fragility fractures must be documented. When assessing bone health, the T-score compares an individual's bone density to that of a healthy young adult. A T-score of -1 or greater signifies normal bone density, while scores between -1 and -2.5 indicate osteopenia, which is a precursor to osteoporosis without being classified as osteoporosis itself. The reading of -2.5 or less reflects osteoporosis, but it doesn't specify severity unless fragility fractures are present. Therefore, the most definitive classification of severe osteoporosis is the combination of a T-score of -2.5 or less and the occurrence of fragility fractures, as it indicates a significantly higher risk of further fractures due to compromised bone strength.