Alpha-2 Globulin
- Sample Type
- Standard
- Fasting
- No
- Unit
- g/dL
Alpha-2 globulin is a fraction of serum proteins identified during electrophoresis. This group includes important proteins such as alpha-2 macroglobulin and haptoglobin. Alpha-2 macroglobulin is a large protease inhibitor, and haptoglobin binds free hemoglobin. This fraction acts as an 'acute phase reactant.' In clinical practice, monitoring this fraction helps in diagnosing inflammatory states and renal disorders like nephrotic syndrome.
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Why Context Matters
Elevations are often non-specific and occur in many inflammatory conditions. Furthermore, in nephrotic syndrome, Alpha-2 macroglobulin increases because its large size prevents it from being lost in the urine, unlike smaller proteins.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Alpha-2 Globulin:
Official Sources
- Globulin Test: MedlinePlus Medical TestMedlinePlus
Research & Guidelines
- PubMed: Alpha-2 Globulin Clinical GuidelinesNCBI / PubMed
Related Indicators
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