Quick Facts
- Sample: Blood
- Fasting: No special preparation is required
- Turnaround: 3-5 business days (may take longer based on weather, holiday, or lab delays)
What This Test Measures
This test measures the level of almond-specific IgE antibodies in your blood. IgE antibodies are produced by the immune system in response to substances it identifies as harmful, and elevated levels to a specific allergen can indicate sensitization to that substance. This test evaluates sensitization to almonds specifically, based on the F020-IgE Almond biomarker, and does not test for any other tree nut, food, or allergen. A blood sample is collected and analyzed in a laboratory to quantify the almond-specific IgE present in your blood.
Benefits
- Measures almond-specific IgE levels from a single blood draw
- Requires no special preparation beforehand
- Provides quantifiable, lab-based results for almond sensitization
- Offers a convenient alternative to in-office allergy testing
- Results are available in a few business days
Who Is This Test For?
- Individuals who have experienced symptoms after eating almonds or almond-containing products
- Individuals wanting to understand their IgE response to almonds specifically
- Individuals working with a healthcare provider to evaluate a possible almond allergy
- Individuals who want lab-based insight into almond sensitization before further evaluation
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. What does this test measure?
This test quantifies almond-specific IgE antibodies in a blood sample, reflecting the biomarker F020-IgE Almond. It measures sensitization to almonds only and does not indicate the presence or absence of a clinical allergy on its own, nor does it test for any other food or tree nut.
2. Who should consider this test, and when?
People who have noticed symptoms after eating almonds or foods containing almonds, such as tingling in the mouth, swelling, hives, digestive upset, or breathing difficulty, may consider this test. It can also be useful for individuals working alongside a healthcare provider to investigate a suspected almond allergy. This test is not intended as a general food allergy screening tool.
3. Do I need to fast or prepare for this test?
No special preparation is required before this test. You can proceed with your normal routine leading up to your blood draw.
4. How quickly will I get results?
Results are typically available in 3-5 business days. Turnaround may take longer depending on weather, holidays, or other lab-related delays.
5. How should I interpret my results, and what if they are abnormal?
Your result reflects the level of almond-specific IgE detected in your blood, and interpretation depends on this value together with your symptom history, exposure history, and any other testing your healthcare provider considers relevant. A detectable IgE level indicates sensitization to almonds but does not by itself confirm a clinical allergy, predict how severe a reaction might be, or establish whether almonds are safe or unsafe for you to eat. If your results fall outside the expected range, review them with a qualified healthcare provider, who can help determine whether further evaluation is appropriate. This test does not diagnose a food allergy or recommend treatment on its own.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
Pre-test preparation
No special preparation is required for this test.
Cross-Reactivity
Cross-reactivity can occur when the immune system recognizes proteins in other foods, pollens, or substances similar to the ones it reacts to in almonds. This test measures only almond-specific IgE and does not test for any of the additional items discussed below. The examples here are not exhaustive, and they're meant to offer general educational context rather than a definitive list. Having a cross-reactive relationship does not mean you will necessarily experience a clinical reaction to another listed allergen, and these relationships are best explored with your healthcare provider in light of your own history and symptoms.
- Birch pollen: Sensitization to birch pollen proteins has been associated with oral allergy syndrome (pollen food allergy syndrome) after eating almonds, typically causing mild, localized mouth or throat symptoms.
- Other tree nuts (e.g., hazelnut, walnut, pistachio, cashew): Cross-sensitization among tree nuts is commonly observed on blood or skin testing, though it does not always translate into a clinical reaction to every nut.
- Peanut: Some individuals sensitized to tree nuts also show cross-sensitization to peanuts, though actual clinical cross-reactivity between peanut and tree nuts is considered less common than the laboratory overlap suggests.
- Certain fruits and vegetables (e.g., peach, apple, celery): Lipid transfer proteins and other shared plant proteins have been linked to cross-reactivity between almonds and some fruits or vegetables, most often associated with mild oral symptoms.
Depending on your symptom history or prior reactions, discussing related allergen testing with your healthcare provider may be worth considering as part of a broader evaluation.
