Immunology

Alpha-2 Globulin

Normal Range
0.6 - 1.0 g/dL
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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Interactive
g/dL

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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:

Related Indicators

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Medically Reviewed by Dr. Binoy Babu, MBBS

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Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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