The blood usually has small amounts of IgE antibodies. Higher amounts can be a sign that the body overreacts to allergens, which can lead to an allergic reaction. IgE levels can also be high when the body is fighting an infection from a parasite and from some immune system conditions.
What is an abnormal IgE?
Hyper IgE Syndrome (HIES) is a rare primary immunodeficiencyprimary immunodeficiencyPrimary immunodeficiencies, also known as inborn errors of immunity (IEI), are a group of more than 450 rare, chronic conditions in which part of the body's immune system is missing or does not function correctly.https://primaryimmune.org › about-primary-immunodeficiencAbout Primary Immunodeficiencies | Immune Deficiency Foundation disease characterized by eczema, recurrent staphylococcal skin abscesses, recurrent lung infections, eosinophilia (a high number of eosinophils in the blood) and high serum levels of IgE.
What does 0.35 allergy test mean?
Values under 0.35 mean unlikely sensitization to the allergen. Values between 0.35-0.69 mean doubtful significance. Values between 0.70-3.49 mean there is a possibility. Values between 3.50-17.49 mean a greater possibility.
What does kU l mean for allergies?
See medical report. The ImmunoCAP test demonstrates patient sensitivity to specific allergens reporting in number of kilounits per liter (KU/L). Management Options for ImmunoCAP Specific IgE Blood Test.
What is considered a high IgE level kU L?
According to most labs, IgE levels above 150 kU/L are considered high.
What is kU L?
A new unit (kU/L or IU/mL) was introduced to express the level of IgE in peripheral blood to alleviate the inconvenience in expressing the very low levels of serum IgE. One kU/L is equal to 2.4 ng/mL [4]. Once produced, IgE binds to its receptor FcεR, which are of two main types.
What is normal range for IgE levels?
Normal IgE Levels IgE has the lowest concentration of all antibodies, especially in people without allergies. Normal values may vary in the scientific literature, but the usual reference range is 1.5-144 kU/L (IU/mL) [1, 23].
What is IgE level in allergy?
High levels of total IgE can occur in allergic conditions, parasitic infections, certain immune-related disorders, and malignancies. The sensitivity of specific IgE tests ranges from 60% to 95% and the specificity from 30% to 95%, depending upon the type of allergen and the age of the patient [3].
What does IgE level indicate?
IgE is an antibody found in the blood that is a marker for allergy diseases. People who have elevated IgE levels can have environmental or food allergies. If you get a blood test and it shows that you have an elevated IgE that could mean you are an allergic patient.