An immunoglobulins blood test measures the amount of immunoglobulins in your blood. Immunoglobulins are also called antibodies. Antibodies are proteins that your immune system makes to fight germs, such as viruses and bacteria. Your body makes different kinds of antibodies to fight germs in different parts of the body and at different stages of an infection.
An immunoglobulins blood test can help your health care provider diagnose different types of health conditions that may affect your immune system.
Source: MedlinePlus, U.S. National Library of Medicine
Normal range
- ≤ 1 y
- 27–66 mg/dL
- ≤ 10 y
- 34–274 mg/dL
- ≤ 13 y
- 42–295 mg/dL
- ≤ 16 y
- 52–319 mg/dL
- ≤ 18 y
- 60–337 mg/dL
- ≤ 2 y
- 2–126 mg/dL (varies by lab) ARUP 2–126 · Mayo 36–79 mg/dL
- ≤ 4 y
- 27–246 mg/dL
- ≤ 5 mo
- 7–37 mg/dL
- ≤ 7 y
- 29–256 mg/dL
- ≤ 9 mo
- 16–50 mg/dL
- 10 y – 14 y
- 42–345 mg/dL
- 15 y – 18 y
- 60–349 mg/dL
- 18 y+
- 61–356 mg/dL
- 19 y+
- 68–408 mg/dL
- 3 y – 4 y
- 14–212 mg/dL
- 5 y – 9 y
- 52–226 mg/dL
- Normal
- 90–325 mg/dL
Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges), Mayo Clinic Laboratories (Pediatric Test Catalog), Mayo Clinic Laboratories (Test Catalog).
All 65 source ranges
What an abnormal result can be associated with
- A high result
- Increased circulating IgA concentration
- A low result
- Decreased circulating IgA concentration
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.
Details
- Sample
- Serum or plasma · LOINC
- Collection
- Serum gel tube · Mayo Clinic Laboratories (Test Catalog)
- Part of
- Immunoglobulin panel
- Listed under
- Autoimmune Diseases · Bacterial Infections · Viral Infections
- Code
- LOINC 2458-8 · mg/dL
- Also known as
- Immunoglobulin A, Immune globulin A