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's Included
This test measures allergen-specific IgE antibodies to tangerine (also known as mandarin) in your blood. Tangerines belong to the Citrus family, and this test evaluates your immune response to tangerine specifically, using a blood sample. The result reflects IgE sensitization to tangerine only and does not include results for other citrus fruits or other foods.
Benefits
- Measures IgE antibody response to tangerine specifically
- Requires only a standard blood draw, no special preparation
- Offers a simple way to evaluate tangerine sensitization
- Provides results in as little as 3-5 business days
- Supports a conversation with your healthcare provider about symptoms
Who Is This Test For?
- Individuals who have experienced symptoms after eating tangerines or mandarins
- People who noticed tingling, swelling, or itching after tangerine exposure
- Individuals who experienced digestive symptoms after eating tangerines
- People working with a healthcare provider to evaluate a suspected tangerine allergy
- Individuals seeking more information about a specific reaction they've experienced after eating tangerines
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. What does this test measure, and how is it different from other food allergy tests?
This test measures IgE antibodies specific to tangerine (mandarin), one allergen within the broader citrus family. It does not test for other citrus fruits, such as oranges or lemons, or for any other foods. Because it targets a single allergen, it's different from broader food allergy panels that screen for reactions to multiple foods at once. If you suspect sensitivity to other foods, those would need to be evaluated with separate testing.
2. Who should consider this test, and when?
People who have noticed symptoms like tingling in the mouth, swelling, hives, digestive upset, or breathing difficulty after eating tangerines may find this test relevant. Symptoms can appear anywhere from minutes to a few hours after exposure, ranging from mild to severe. This test can offer a starting point for discussing a suspected tangerine reaction with a healthcare provider.
3. Do I need to fast or prepare for this test?
No special preparation is required for this test. You can schedule your blood draw at a local lab without adjusting your diet, medication, or routine beforehand.
4. How quickly will I get results, and how should I interpret them?
Results are typically available in 3-5 business days, though weather, holidays, or lab-specific delays may extend this timeframe. Interpreting your result depends on the exact IgE level, your personal and family history, and any symptoms you've experienced, so it's not something to interpret in isolation. A positive IgE result indicates sensitization to tangerine, but sensitization alone doesn't confirm a clinical food allergy, and a negative result doesn't guarantee that tangerine can be consumed without any reaction. This test does not predict reaction severity.
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.
5. What should I do if my results are abnormal?
If your result comes back elevated, review it with a qualified healthcare provider who can factor in your symptom history and overall health picture. They can help determine whether further evaluation is appropriate. This test result alone isn't a diagnosis, and any decisions about diet or additional testing are best made together with your provider.
Pre-Test preparation
No special preparation is required for this test.
Cross-Reactivity
Cross-reactivity happens when the immune system recognizes similar proteins across different allergen sources, sometimes causing a reaction to more than one substance even though only one was originally the trigger. This test measures IgE specific to tangerine only, and it does not test for any of the pollens, foods, or other substances mentioned below. The examples here are not an exhaustive list, and they're meant to provide general educational context rather than predict how you personally will react. Whether any of these related allergens are relevant to you depends on your individual history, symptoms, and your healthcare provider's guidance, and related allergen testing may be worth discussing with them if that history suggests it.
Grass and tree pollens: Citrus allergens can share structural similarity with certain pollen proteins (such as profilins), which is part of why citrus reactions are sometimes seen alongside pollen sensitivities.
Other citrus fruits (orange, lemon, grapefruit): Because citrus fruits share many of the same proteins, some individuals sensitized to one citrus fruit show IgE reactivity to others in the citrus family, though clinical reactions don't always follow the same pattern as lab sensitization.
Peach and other stone fruits: Certain citrus allergens have shown structural similarity to lipid transfer proteins found in peach, which has been associated in some studies with broader plant food cross-reactivity.
Cypress pollen: Research has identified shared protein families between citrus fruits and cypress pollen, which may help explain why some individuals with cypress pollen sensitivity also react to citrus.
Not everyone sensitized to tangerine will react to these related pollens or foods, and these relationships don't indicate that you should avoid them without further evaluation. If you have a history of reactions to any of these, discussing it with your healthcare provider can help determine whether additional evaluation makes sense for you.
