Total IgE (Immunoglobulin E)
- Sample Type
- Standard
- Fasting
- No
- Unit
- kU/L
The Total IgE test measures the overall concentration of IgE antibodies in the blood. IgE is the antibody class primarily responsible for Type I hypersensitivity reactions (allergic reactions). In an 'Allergy Profile', it acts as a screening marker; elevated levels suggest an 'atopic' constitution—meaning the patient is prone to developing allergies, asthma, or eczema. It is also a critical marker for diagnosing parasitic infections and certain bronchopulmonary conditions like ABPA.
Check Your Result
Check Your Result
Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
Total IgE can be misleading. A patient can have a very high Total IgE without specific clinical allergies, or conversely, a patient can have severe specific allergies (e.g., to honeybees) while maintaining a normal Total IgE level. Smoking and certain viral infections can also artificially raise IgE.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Total IgE (Immunoglobulin E):
Official Sources
- Allergy Blood Test: MedlinePlus Medical TestMedlinePlus
- IgE Allergy Test (IgE Total) - Testing.comTesting.com
Research & Guidelines
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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