Metabolic bone disorders
Orthopedics · Topic 7
Source: NMC CBME Curriculum 2024 · Volume III · Orthopedics · Topic 7 · combined PDF page 448
Practice questions
- A patient is being evaluated for a suspected metabolic bone disorder. Which set of measurements is identified as a useful core biochemical assessment?
- A patient has persistent bone pain and hypophosphatemia. Which additional assessment may help determine whether renal phosphate handling is abnormal?
- A patient has persistent hypophosphatemia, and an FGF23-mediated cause is being considered. Which additional measurement is specifically relevant to this diagnostic question?
- A patient with a metabolic bone disorder has focal persistent pain and suspected insufficiency fracture, but initial imaging has not established the diagnosis. Which modality is emphasized for detecting insufficiency fractures?
- An insufficiency fracture is suspected as the first manifestation of a metabolic bone disorder. Which statement best supports prompt investigation?
- Which description best captures the meaning of bone fragility in metabolic bone disease?
- A review describes metabolic bone disorders broadly as involving an imbalance between which two processes?
- An older adult presents with a low-trauma fracture. Which approach is most consistent with a systematic assessment of possible metabolic causes?
- A patient develops bone disease after gastrectomy. Which combination is described as a plausible contributor?
- In a prospective observation summarized in a review, when was a significant decline in bone mineral density reported after gastrectomy for gastric cancer?
- A patient asks whether a single optimal prevention and treatment regimen for metabolic bone disease after gastrectomy has been established. Which response is best supported?
- A child with inflammatory bowel disease has risk factors for impaired bone metabolism. Which group contains only factors highlighted in reviews of pediatric IBD-associated bone disease?
- Which pair of nutrient deficiencies is specifically noted in observations of children with inflammatory bowel disease and is relevant to bone metabolism?
- A child with inflammatory bowel disease is receiving steroid therapy and has poor nutritional intake. Which interpretation of the bone risk is most appropriate?
- A child has hypophosphatemic rickets, and an FGF23-mediated disorder is suspected. Which targeted treatment is described for X-linked hypophosphatemia?
- Which description correctly identifies asfotase alfa in the treatment of hypophosphatasia?
- A child has a presentation resembling nutritional rickets but has not improved as expected with initial management. Which diagnostic principle is best supported?
- In which setting is nutritional rickets particularly relevant to the differential diagnosis described in the review?
- An adult endocrinologist is asked to participate in the care of a person with a heritable metabolic bone disorder diagnosed in childhood. Which statement best reflects the expected care needs?
- Which skeletal manifestations are consistent with inherited metabolic bone fragility described in the literature?
- A patient with an unusual skeletal phenotype is suspected to have a heritable metabolic bone disorder. Which approach is consistent with current management described for these disorders?
- A child with a primary metabolic bone disorder is being evaluated for cranial complications. Which abnormality should clinicians consider screening for?
- A family is counseling a child with metabolic bone disease after cranial vault remodeling for craniosynostosis. Which statement is best supported by the reported pediatric experience?
- A patient has a fragility fracture and a history suggesting a rare metabolic bone disorder. Which general diagnostic principle is most important before choosing disease-specific treatment?
- A patient with unexplained bone pain has normal or nonspecific early investigations, but clinical suspicion for a metabolic bone disorder remains. Which overall approach is most appropriate?
- Which statement best distinguishes the evidentiary status of targeted therapies discussed for pediatric hypophosphatasia and X-linked hypophosphatemia?
- A young adult with a suspected inherited bone disorder has a history of recurrent fractures. Which statement about inherited metabolic bone disease is most accurate?