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IgA

Also known as Immunoglobulin A Immunoassay Blood
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What is this test?

Immunoglobulins A Immunoassay Blood test helps to check whether an individual is having normal or abnormal levels of IgA in the blood.

What are Antibodies and their types?

Antibodies are the protective proteins produced by the immune system and known as immunoglobulins Ig. Antibodies are produced when any foreign substance or virus or bacteria enters the body. These foreign substances are known as antigens. Antibodies recognize and attach to the antigens in order to remove them from the body. There are five (5) subtypes of antibodies and they are IgG, IgM, IgA, IgD, IgE.

IgG provides long-term protection as it presents in the circulation for long period after the presence of an antigen. IgM enhances the ingestion of cells by phagocytosis. IgA is also the first defense for intestine, lungs, and nose. They bind antigens to the microbes before they invade tissues and keeps antigens in secretion and when secretion is expelled, antigens are also expelled. IgD helps in the induction of antibody production and presents on the surface of B-cells. IgE binds to the basophils and mast cells.

Why this test is performed?

The doctor may ask you to undergo this test if you are suffering from symptoms such as delayed walking, skin discoloration, decreased mental development, pain in bones, loss of appetite, constipation, etc.

This test is also done if an individual is suffering from recurrent infections such as skin infections, kidney damage, respiratory infections, parasite infections, etc.

If an individual is on the treatment for immunodeficiency Immune system to fight against infections is absent or not working then the doctor may ask to perform this test to evaluate and to check the effectiveness of the treatment.

How often this test should be performed?

If you have been diagnosed with immunodeficiency, your doctor may advise you to get this test done once in a year based on your clinical condition. If you are a healthy individual above the age of 35, your doctor may advise you to undergo this test either on a yearly basis or every other year.

Precautions:

Some medications may change the levels of IgA in the blood and hence you are advised to inform all your current medications to the doctor prior to the test. Rheumatoid factor can give rise to false positive results.

Also known as IgA Immunoassay Blood, Serum IgA Immunoassay Blood, IgA Test, Immunoglobulin A, Serum IgA.

Test Preparation

Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your IgA. Your doctor will give specific instructions depending on your condition on how to prepare for IgA.

There are no specific preparations required for this test.

Understanding your test results

If the test results are lower than the normal range, then it may indicate that the individual is suffering from selective IgA deficiency SIgAD, ataxia-telangiectasia, kidney damage, enteropathy, some types of leukemia, etc.

If the test results are higher than the normal range, then it may indicate that the individual is suffering from IgA multiple myeloma cancer of a type of white blood cells, rheumatoid arthritis, systemic lupus erythematosus SLE, etc.

GenderAge groupsValue
UNISEXAll age groups15% of total immunoglobulin
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