New Allergens Now Available: Tree Nut Components, Nut Panel & Seafood Panel

The following tests are now available:

Tree Nut Component Allergens

In addition to allergen components for egg, milk, and peanut, the test menu at Spectrum Health Regional Laboratory has expanded to offer component testing for tree nuts.  Component testing measures sIgE antibodies to individual proteins unlike whole allergen testing which measures the presence of specific immunoglobulin E (sIgE) antibodies to a combination of allergenic and non-allergenic proteins.  This next generation testing identifies the source of sensitization and helps the clinician assess the risk of systemic reaction.

Results of component testing can assist with patient selection for oral food challenge as well as possible management recommendations such as immunotherapy and/or allergen avoidance/food elimination.  Because of the diagnostic and management complexities associated with food allergy, referral to an allergy and immunology specialist should be considered when evaluating a patient with suspected food allergies.  For questions related to sIgE testing, contact ImmunoChemistry at 616.267.2770.

Component testing for Brazil Nut, Cashew, Hazelnut, and Walnut must be ordered as follow-up testing to whole allergen results.  They are not available as reflex tests.  Patient specimens are stored frozen for 30 days.  Requests for add-on testing should be faxed to ImmunoChemistry at 616.267.2771


Brazil Nut Component add-on (Epic #LAB3621, SH #7104)

Cashew Nut Component add-on (Epic #LAB3622, SH #7124)

Hazelnut Component add-on (Epic #LAB3623, SH #7106)

Walnut Component add-on (Epic #LAB3624, SH #7123)

Click on the links above for specimen requirements.


New Panels

Two new panels are now available to order:

Nut Panel: The Nut Panel includes the following whole allergens: Almond, Brazil Nut, Cashew, Hazelnut, Macadamia Nut, Peanut, Pecan, Pistachio, and Walnut.

There is significant prevalence of cross-reactive sensitization among peanut and tree nuts.

Seafood Panel: The Seafood Panel includes the following whole allergens: Cod, Crab, Lobster, Shrimp, Salmon, and Tuna


Nut Panel (Epic #LAB3661, SH #7147)

Seafood Panel (EPIC #LAB3662, SH #7148)

Click on the links above for specimen requirements.


The Allergen Specific IgE Testing requisition has been updated. If your office uses paper requisitions, please order new requisitions via the supply order form.

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