What is S-IgE?
The S-IgE test checks the levels of antibodies called immunoglobulins in your bloodstream. Antibodies are proteins made by your immune cells to fight off pathogens like bacteria, viruses, and mold but also food proteins. The immunoglobulin test can show whether there's a problem with your immune system.
IgE antibodies are generally related to allergic reactions. Newer research is also supporting IgE as a biomarker in oncology.
Why test S-IgE?
Discover factors for lifestyle diseases in time and do something about them. This is especially important for people suffering from atopy and frequent allergic reactions to foods or airborne allergens. People with allergies can develop asthma symptoms including postnasal drip, itchy eyes, skin rashes, and eczema.
An S-IgE test is often part of a routine check when you have allergies and/or suffer from food reactions or diverse symptoms such as frequent infections of the sinuses, lungs, stomach, or intestines, chronic diarrhea, fever, unexplained weight loss, eczema, or other skin problems like rashes, dry, red, itchy and scaly skin.
Monitor changes to your blood values as you make lifestyle changes or undergo treatments.
What do the results mean?
What causes low S-IgE?
Low or undetectable S-IgE usually means that your immune system isn't working as it should, and can point to an immunodeficiency disorder. Causes include the use of certain medicines such as steroids and immunosuppressive drugs, chronic disease, long-term autoimmune disease, gut disorders, cancers, and chronic infections. You don’t necessarily have one of these conditions just because your immunoglobulin level is low.
Ultra-low IgE levels are sometimes used as a new biomarker in oncology (cancer).
What causes high S-IgE?
Elevated IgE is a robust biomarker in atopy, allergic disorders, and parasitic infections. Very elevated levels can lead to severe allergic reactions called anaphylactic shock.
No advance preparation is needed for this test.
On the day of the test
Remember to take I.D. with you when going to take a test. Arrive early and sit down quietly for 15 minutes before taking the test.