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Laboratory assessment of nutritional metabolic bone disease in infants
1Department of Pediatrics, Wayne State University, Detroit, Michigan 48202, USA.
Insights
This study guides assessing infants with metabolic bone disease (MBD) by highlighting history and physical exam importance. It details relevant lab tests, including radiologic, biochemical, and hormonal assessments, to optimize diagnosis and treatment monitoring.
Area of Science:
- Pediatrics
- Biochemistry
- Radiology
Background:
- Infants with suspected metabolic bone disease (MBD) require careful assessment to avoid unnecessary stress and costs.
- Nutrition-related bone disease is a key concern in infant MBD.
Purpose of the Study:
- To provide an overview of assessing infants with suspected MBD, focusing on nutrition-related bone disease.
- To understand how clinical history and physical examination guide laboratory investigations.
- To review the relevance and limitations of various laboratory tests for MBD diagnosis and monitoring.
Main Methods:
- Review of diagnostic radiographs and dual-energy x-ray absorptiometry for bone mass.
- Biochemical measurements assessing mineral homeostasis and bone turnover.
- Analysis of vitamin D metabolites, parathyroid hormone, and calcitonin levels.
Main Results:
- Clinical history and physical examination are crucial for selecting appropriate laboratory investigations.
- Radiologic studies, biochemical markers, and hormonal assays provide essential diagnostic information.
- Understanding the limitations of each test is key to effective MBD assessment.
Conclusions:
- Optimal utilization of laboratory tests in infant MBD assessment relies on relevant clinical information and knowledge of test capabilities.
- A targeted approach to investigations minimizes infant stress and healthcare costs.
- Effective MBD management requires a comprehensive understanding of diagnostic tools and their application.
Objectives:
There are numerous laboratory investigations available for the assessment of an infant with suspected metabolic bone disease (MBD); thus, comprehensive laboratory investigations on every aspect of MBD would impose unnecessary stress to the infant and the costs involved would be prohibitive. An overview of the assessment of an infant with suspected MBD, in particular, nutrition-related bone disease, is presented. Our objectives include an understanding of: 1. the importance of appropriate information from history and physical examination to guide the laboratory investigations; 2. relevance and limitations of specific laboratory investigations: a. radiologic studies include diagnostic radiographs and quantitative bone mass determination by dual energy x-ray absorptiometry, b. biochemical measurements to determine mineral homeostasis and bone turnover, c. vitamin (vitamin D metabolites) and hormonal (parathyroid hormone and calcitonin) measurements; with respect to diagnosis and monitoring of the natural progress or response to therapy.
Conclusion:
Relevant information from clinical history and physical examination, and an understanding of the role and limitations of various laboratory investigations, would allow the optimal utilization of laboratory tests in the assessment of an infant with MBD.