California
Hazelnut Allergy Blood Test in California
A blood test that measures IgE antibodies to hazelnut, also called filbert, to help identify a tree nut allergy after reactions to the nut or foods containing it.
Order Hazelnut (Filbert) Allergy Test in California
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Hazelnut (Filbert) Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
This test checks a blood sample for IgE antibodies that bind to hazelnut proteins. It is used when symptoms such as mouth itching, hives, or digestive upset follow eating hazelnuts, filberts, or products that contain them. A healthcare provider interprets the result with the reaction history.
What this test measures
Hazelnut, also known as filbert or cobnut, is a tree nut that can trigger IgE-mediated reactions. Several distinct proteins in the nut, including PR-10, lipid transfer protein, and seed storage proteins, may be involved. The test measures specific IgE antibodies produced against hazelnut proteins.
The sample is collected through a routine blood draw and analyzed in a laboratory. Results typically include hazelnut-specific IgE, total IgE, and a semiquantitative class. Component testing may report individual proteins such as Cor a 1, Cor a 8, Cor a 9, and Cor a 14, which can help a clinician assess reaction patterns.
People order this test after a suspected reaction to hazelnuts or when a broader tree nut evaluation is underway. Because hazelnut proteins also resemble some pollen proteins, a positive result can sometimes reflect cross-reactivity rather than a primary food allergy, which is why clinical context matters.
Hazelnut Allergy Blood Test in California cities
Acalanes Ridge, CA
Hazelnut Allergy Blood Test in Acalanes Ridge.
Acton, CA
Hazelnut Allergy Blood Test in Acton.
Adelanto, CA
Hazelnut Allergy Blood Test in Adelanto.
Agoura Hills, CA
Hazelnut Allergy Blood Test in Agoura Hills.
Agua Dulce, CA
Hazelnut Allergy Blood Test in Agua Dulce.
Ahwahnee, CA
Hazelnut Allergy Blood Test in Ahwahnee.
Airport, CA
Hazelnut Allergy Blood Test in Airport.
Alameda, CA
Hazelnut Allergy Blood Test in Alameda.
Alamo, CA
Hazelnut Allergy Blood Test in Alamo.
Albany, CA
Hazelnut Allergy Blood Test in Albany.
Alhambra, CA
Hazelnut Allergy Blood Test in Alhambra.
Aliso Viejo, CA
Hazelnut Allergy Blood Test in Aliso Viejo.
Allendale, CA
Hazelnut Allergy Blood Test in Allendale.
Alondra Park, CA
Hazelnut Allergy Blood Test in Alondra Park.
Alpine, CA
Hazelnut Allergy Blood Test in Alpine.
Alta Sierra, CA
Hazelnut Allergy Blood Test in Alta Sierra.
Altadena, CA
Hazelnut Allergy Blood Test in Altadena.
Alturas, CA
Hazelnut Allergy Blood Test in Alturas.
Alum Rock, CA
Hazelnut Allergy Blood Test in Alum Rock.
Amador Pines, CA
Hazelnut Allergy Blood Test in Amador Pines.
American Canyon, CA
Hazelnut Allergy Blood Test in American Canyon.
Amesti, CA
Hazelnut Allergy Blood Test in Amesti.
Anaheim, CA
Hazelnut Allergy Blood Test in Anaheim.
Anderson, CA
Hazelnut Allergy Blood Test in Anderson.
Angels, CA
Hazelnut Allergy Blood Test in Angels.
Angwin, CA
Hazelnut Allergy Blood Test in Angwin.
Antelope, CA
Hazelnut Allergy Blood Test in Antelope.
Antioch, CA
Hazelnut Allergy Blood Test in Antioch.
Anza, CA
Hazelnut Allergy Blood Test in Anza.
Apple Valley, CA
Hazelnut Allergy Blood Test in Apple Valley.
Frequently Asked Questions
Where can I get a hazelnut allergy blood test in California?
California has certified laboratories and independent diagnostic centers that offer this panel. Direct-access ordering lets you select a location that fits your schedule.
How much does a hazelnut allergy blood test cost in California?
Pricing varies by provider and location. Check the price shown at checkout, and contact the testing partner for a written estimate if needed.
Is at-home collection available in California?
For select panels, at-home kits can be shipped to California, collected at home, and mailed back for analysis.
How long do results take in California?
Most results are reported within 1-3 business days after collection.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.