Bone density testing is key to diagnosing osteoporosis in which populations?

• A. Teenagers with sports injuries
• B. Athletes with high bone mass
• C. Men with fragility fractures, older adults with few symptoms, individuals with comorbidities or malnutrition.
• D. Children with obesity

Answer: (C)

Bone density testing is most informative when assessing people with risk factors that directly increase osteoporosis likelihood. In particular, measuring bone mineral density helps diagnose osteoporosis in older adults, where bone loss is common, and in men who have fragility fractures—fractures that occur from a fall from standing height or less, which signals weakened bones rather than high‑energy trauma. It’s also essential for individuals with conditions or treatments that compromise bone health, such as malnutrition, chronic illnesses, or long‑term use of glucocorticoids, because these factors accelerate bone loss and raise fracture risk. By identifying low bone density in these groups, clinicians can confirm osteoporosis or identify osteopenia and then implement treatment or preventive strategies.

Teenagers with sports injuries, athletes with high bone mass, and children with obesity do not represent typical populations for diagnosing osteoporosis via bone density testing. Teens and children have different bone development considerations, and obesity in kids does not by itself indicate osteoporosis, so routine density testing isn’t the primary diagnostic tool for those groups.