Evaluation for secondary causes in osteoporosis management.

• A. It is unnecessary if BMD is low
• B. It only matters after age 80
• C. It has minimal impact on treatment choices
• D. It helps identify reversible factors and tailor therapy

Answer: (D)

Evaluating for secondary causes is crucial because osteoporosis often arises from treatable conditions and medications in addition to bone density. By uncovering factors such as vitamin D deficiency, hyperparathyroidism, thyroid excess, chronic glucocorticoid use, malabsorption, or alcohol use, you can address these issues directly. Correcting a reversible factor can improve bone turnover, enhance the effectiveness of osteoporosis therapies, and sometimes reduce fracture risk beyond what bone-targeted drugs alone achieve. This information helps tailor therapy to the individual—whether that means supplementation, treating an underlying endocrine disorder, or adjusting a medication that harms bone health. It’s not unnecessary when BMD is low, it isn’t limited to the oldest patients, and it clearly influences the treatment approach.