Quick Facts
- Sample: Blood
- Fasting: No special preparation required
- Turnaround: 3-5 business days. May take longer based on weather, holiday or lab delays.
What This Test Measures
This test measures the amount of mushroom-specific IgE antibodies in your blood sample. IgE antibodies are part of the immune response involved in allergic reactions. The biomarker reported is F212-IgE Mushroom.
This is a single-allergen test. It looks only at IgE directed at mushrooms and does not measure other foods, allergens, or antibody classes. A result reflects the presence and amount of these antibodies. It does not, on its own, confirm a clinical allergy.
Benefits
- Measures mushroom-specific IgE antibodies from a single blood sample
- Focuses on one allergen, mushroom, for a clear and specific result
- No special preparation required before your blood draw
- Provides information you can review with your healthcare provider
- Results are available online in 3-5 business days
Who Is This Test For?
- Adults or children who have had symptoms after eating mushrooms
- People who notice reactions after skin contact with mushrooms
- People who react when exposed to airborne mushroom spores
- People who developed symptoms after years of eating mushrooms without problems
- People who want mushroom IgE information to discuss with their healthcare provider
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. What does this test measure?
Mushroom-specific IgE antibodies are the focus. The test reports F212-IgE Mushroom from a blood sample. Your healthcare provider can use this measurement, along with your history and symptoms, when evaluating a possible mushroom allergy. It is limited to mushrooms and does not report results for other foods or allergens.
2. Who should consider this test, and when?
Consider testing if you have noticed symptoms such as hives, wheezing, swelling of the lips, mouth, or throat, or digestive upset after mushroom exposure. Mushroom allergy can involve eating, skin contact, or inhaling spores, and it can appear at any age. Severe symptoms such as fainting or shortness of breath call for prompt medical attention.
3. Do I need to fast or prepare for this test?
No special preparation is required. You can visit the lab without changing your routine, and no fasting is needed for this blood test.
4. How quickly will I get my results?
Results take 3-5 business days. They may take longer based on weather, holiday or lab delays.
5. How do I interpret my results, and what should I do next?
A mushroom IgE result shows whether antibodies to mushrooms were detected and at what level. It cannot alone establish whether you have a clinical mushroom allergy, and it does not predict reaction severity. Interpretation depends on your result, symptoms, and history. Share your results with a qualified healthcare provider, who can advise on any further evaluation.
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 required.
Cross-Reactivity
Cross-reactivity may occur when the immune system recognizes similar proteins in different allergen sources. This test measures only mushroom-specific IgE and does not test for any of the items below. Established cross-reactivity for mushrooms is limited, and these examples are not exhaustive. They are possible considerations, not confirmed allergies, and a reaction to one does not mean you will react to another. Depending on your history or symptoms, related allergen evaluation may be worth discussing with your healthcare provider.
- Other edible mushroom species: Some people who react to one type of mushroom have been reported to react to others, though this varies from person to person.
- Molds and other fungi: Shared proteins between mushrooms and some molds, such as Alternaria and Cladosporium, have been reported, but clinical significance is uncertain.
