Understanding the IgE Test – What It Is and Why It's Important

The IgE Test (Immunoglobulin E Test) is a diagnostic blood test used to detect and measure the amount of IgE antibodies in the blood. IgE antibodies play a key role in allergic reactions. When a person is exposed to an allergen like dust, pollen, food, or insect venom, the immune system may produce IgE antibodies, which trigger allergy symptoms.