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An immunoglobulins test is done to measure the level of immunoglobulins, also known as antibodies, in your blood.


The normal values listed here-called a reference range-are just a guide. These ranges vary from lab to lab, and your lab may have a different range for what's normal. Your lab report should contain the range your lab uses. Also, your doctor will evaluate your results based on your health and other factors. This means that a value that falls outside the normal values listed here may still be normal for you or your lab.

The results listed below are normal values for adults. Children have different values than adults. Results are ready in several days.

Immunoglobulins 1

60-400 milligrams per deciliter (mg/dL) or 600-4,000 milligrams per liter (mg/L)


700-1,500 mg/dL or 7.0-15.0 grams per liter (g/L)


60-300 mg/dL or 600-3,000 mg/L


0-14 mg/dL or 0-140 mg/L


3-423 international units per milliliter (IU/mL) or 3-423 kilo-international units per liter (kIU/L)

High values

Low values

  • IgA. Some people are born with low or absent levels of IgA antibodies. Low levels of IgA occur in some types of leukemia, kidney damage (nephrotic syndrome), a problem with the intestines (enteropathy), and a rare inherited disease that affects muscle coordination (ataxia-telangiectasia). A low level of IgA increases the chance of developing an autoimmune disease.
  • IgG. Low levels of IgG occur in macroglobulinemia. In this disease, the high levels of IgM antibodies stop the growth of cells that make IgG. Other conditions that can cause low levels of IgG include some types of leukemia and a type of kidney damage (nephrotic syndrome). In rare cases some people are born with a lack of IgG antibodies. These people are more likely to develop infections.
  • IgM. Low levels of IgM occur in multiple myeloma, some types of leukemia, and in some inherited types of immune diseases.
  • IgE. Low levels of IgE can occur in a rare inherited disease that affects muscle coordination (ataxia-telangiectasia).

WebMD Medical Reference from Healthwise

Last Updated: September 09, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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