Serum Immunoglobulin (Ig) Profile with Allergen-Specific Testing (Screening Mix)

What Does This Test Measure?

Your blood contains several types of immunoglobulins (IgA, IgE, IgG, IgM), each playing a role in immune defense. This test includes a mix of allergen-specific antibodies (IgE) and general immunoglobulin levels to assess your immune response profile. Some components may also detect IgG antibodies to specific allergens, which can indicate past exposure or immune memory.

Why Might You Need This Test?

A doctor may recommend this screening if you have symptoms like sneezing, itching, hives, or breathing difficulties that suggest allergies. It can also help evaluate conditions like asthma, eczema, or chronic sinusitis that may be linked to allergic reactions. Some patients are tested as part of a broader allergy workup before receiving allergy immunotherapy (allergy shots).

How Is the Test Performed?

A small blood sample is drawn from your arm, typically in a clinic or lab. The blood is processed to separate serum (the liquid part) for testing. The test may use immunoassay methods to detect specific antibodies against various allergens, including common triggers like pollen, dust mites, pet dander, or certain foods.

What Are Common Allergens Tested?

This screening typically includes a mix of common environmental and food allergens, such as house dust mites, grass pollen, tree pollen, cat/dog dander, mold spores, peanut, milk, egg, soy, and wheat. The exact mix may vary by lab, so ask your doctor which allergens are included in your specific test.