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Blood test
 
Overview   Risks   Results   

Quantitative immunoglobulins (nephelometry)

Normal values:

  • IgG: 950 to 1450 mg/dl
  • IgM: 75 to 175 mg/dl
  • IgA: 160 to 260 mg/dl

Note: mg/dl = milligrams per deciliter

What abnormal results mean:

Increased levels of IgG may indicate:

Decreased levels of IgG may indicate:

Increased levels of IgM may indicate:

Decreased levels of IgM may indicate:

Increased levels of IgA may indicate:

Decreased levels of IgA may indicate:

  • agammaglobulinemia (very rare)
  • protein-losing gastroenteropathy
  • hereditary IgA deficiency (1 out of 700 people)


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