What does a very high IgE level mean?

An increased total IgE level indicates that it is likely that a person has one or more allergies. Allergen-specific IgE levels will increase after an exposure and then decline over time, thus affecting the total IgE level.

What is normal range for IgE levels?

Variations in the upper limit of normal total serum IgE have been reported: they can range from 150 to 1,000 UI/ml; but the usually accepted upper limit is between 150 and 300 UI/ml.

What does 0.35 kU l mean?

Less than 0.10 kU/L: No significant level detected. 0.10-0.34 kU/L: Clinical relevance undetermined. 0.35-0.70 kU/L: Low.

What do IgE test results mean?

Immunoglobulin E (IgE) is a class of antibody (immune protein) associated with allergic reactions. It is normally found in very small amounts in the blood. This test measures the amount of allergen-specific IgE in the blood in order to detect an allergy to a particular substance.

What causes high IgE?

Elevated serum immunoglobulin E(IgE) can be caused by allergies, infections and immune conditions including hyper IgE syndrome (HIES).

Is IgE good or bad?

IgE is most commonly associated with allergic disease and thought to mediate an exaggerated and/or maladaptive immune response to antigens. Once antigen specific IgE has been produced, re-exposure of the host to that particular antigen results in the typical immediate hypersensitivity reaction.

What is the normal IgE range?

IgE Levels. IgE can be easily measured after taking some blood samples. Normal concentration of IgE is low comparing to other antibody isotypes. The normal range of IgE is between 4.2 and 592 U/ml.

What does a high IgE blood test mean?

A low IgE level is something like 4.2 units per milliliter. A high IgE level is above 592 units per milliliter. These high numbers could indicate an infection, cancer, allergic reactions or an autoimmune disease.

What is IgE antibody test?

The IgE antibody test is used to screen for allergies. Antibodies are part of the body’s immune system; they are immunoglobulin (Ig) proteins that bind to foreign invaders like viruses, bacteria or toxins. Allergies develop when the immune system overreacts to harmless foreign particles like pollen, animal dander or dust mites.

What does IgE mean in lab results?

An immunoglobulin E (IgE) test measures the level of IgE, a type of antibody. Antibodies are made by the immune system to protect the body from bacteria, viruses, and allergens. IgE antibodies are normally found in small amounts in the blood, but higher amounts can be a sign that the body overreacts to allergens.