Total Serum Immunoglobulin E (IgE) Level with Specific Allergen Sensitization Profile

What This Test Measures

The test detects levels of Immunoglobulin E (IgE), a protein your immune system produces in response to allergens. It also evaluates sensitization to specific allergens (e.g., pollen, dust mites, pet dander, foods) via skin prick or blood-based methods. Results help link symptoms to potential triggers.

Why It’s Done

Your doctor may recommend this test if you experience symptoms like sneezing, itching, hives, wheezing, or digestive issues that suggest allergies. It’s often used alongside allergy skin tests or blood tests for confirmation.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The sample is processed to separate serum (liquid part of blood) for testing. No special preparation is needed, but fasting may be advised depending on the specific allergens being tested.

Test Results Interpretation

Results show your baseline IgE level and whether your body is sensitized to specific allergens. Elevated IgE or positive sensitization to certain allergens may indicate an allergic reaction risk, but they don’t confirm a diagnosis alone. Results are used alongside clinical findings and other tests.