Immunoglobulin E (IgE) stands among the five critical classes of proteins in the immune system, playing an important role, especially in allergic reactions. When the body encounters an allergen, IgE is produced and connects to immune cells, causing a series of circumstances that lead to the appearance of allergy symptoms.
This test, which measures the total IgE content in blood serum, is usually ordered when individuals exhibit signs of allergic reactions or infections caused by parasites. Conditions like these can cause an increase in IgE levels. The allergy blood test accurately assesses the presence of immunoglobulin E (IgE) in the bloodstream. In the case of allergies, an individual's IgE level may be higher than normal.
Test NameImmunoglobulin - IgE Total - Serum Test
Sample TypeSerum
Preparations RequiredNo fasting or special preparation is required for this test. You should continue taking your medications unless otherwise instructed by your healthcare provider.
Report Time4 hours
Substances triggering allergies are termed allergens and can encompass a range of materials, including pollen, dust, mold, animal dander, certain foods like nuts and shellfish, and specific medications such as penicillin. Allergy symptoms range from modest reactions like itching and sneezing to more severe manifestations like asthma or, in rare cases, anaphylactic shock.
This diagnostic procedure goes by various names, including IgE allergy test, Quantitative IgE, Immunoglobulin E, Total IgE, Specific IgE, RAST, CAP, or ELISA. These methods aid in a complete evaluation of IgE levels, providing vital information for the diagnosis and management of allergic diseases.
Home Sample Collection Process
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Book your convenient slot
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Sample Collection by Phlebotomist
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Reporting of the sample at lab
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Frequently Asked Questions
The test is essential for diagnosing allergies, parasitic infections, and certain immune deficiencies. By
understanding the IgE levels, healthcare providers can make an informed diagnosis and formulate an
effective treatment plan.
No, fasting is not required for this test.
Normal IgE levels typically range from 10 to 500 IU/mL, but values can vary between different labs. It's
best to discuss your specific results with your healthcare provider.
Yes, this test is safe during pregnancy and breastfeeding. Make sure to inform your healthcare provider
about your status.
Treatment is chosen by the underlying cause of the abnormal levels. This might include medications,
lifestyle changes, or immunotherapy for allergies.
