Quick Facts
- Sample: Blood
- Fasting: No special preparation required
- Turnaround: 3-5 business days
What's Included
This test measures allergen-specific IgE antibodies to oregano (F283-IgE Oregano) in a blood sample. IgE antibodies are part of the immune system's response to specific allergens, and elevated levels can indicate sensitization to oregano. The result is reported as a quantitative measurement of oregano-specific IgE, giving insight into your immune system's antibody response to this particular herb. This test evaluates oregano alone and does not measure antibodies to any other food, spice, or substance.
Benefits
- Measures IgE antibody response specifically to oregano
- Uses a simple, minimally invasive blood draw
- Requires no special preparation beforehand
- Provides quantitative results for healthcare provider review
- Delivers results digitally within a few business days
- Offers one data point to discuss with your provider
Who Is This Test For?
- People who suspect a reaction after consuming oregano or oregano-containing dishes
- Individuals working with a healthcare provider to investigate possible oregano sensitization
- People who have noticed symptoms like hives, itching, or swelling after oregano exposure
- Those wanting a convenient blood-based option instead of a skin prick test
- Individuals following up on a healthcare provider's recommendation for oregano-specific testing
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 oregano only, using a blood sample rather than a skin prick. Unlike a food allergy panel, it does not screen for multiple foods or allergens at once, it reflects your immune system's antibody response to this single herb.
2. Who should consider this test, and when?
This test may be relevant if you've experienced symptoms such as hives, itching, swelling, or digestive upset after eating oregano or foods seasoned with it. It can also be a useful option if a healthcare provider has suggested evaluating a possible oregano sensitization.
3. Do I need to fast or prepare for this test?
No special preparation is required for this test. You can visit the lab for your blood draw without fasting or making any adjustments beforehand.
4. How long will it take to get my results?
Results are typically available in 3-5 business days, though timing may be affected by weather, holidays, or lab-specific delays. You'll be able to access your results online once processing is complete.
5. How should I interpret my results, and what if they are abnormal?
Your result reflects the level of oregano-specific IgE detected in your blood sample, and interpretation depends on this measurement together with your symptoms, history, and other relevant factors, which is best done with a healthcare provider. A detected antibody level does not by itself confirm a clinical food allergy, nor does the absence of antibodies guarantee that oregano can be consumed without any reaction. 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 an allergy, recommend treatment, or indicate whether oregano should be eliminated from your diet.
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 may occur when the immune system recognizes similar proteins across different allergens, potentially leading to a reaction to more than one substance. This test measures only oregano-specific IgE antibodies and does not test for any of the additional herbs listed below. The examples provided here are not exhaustive, but they may offer useful context when considering whether related allergens could be relevant based on your history, symptoms, or healthcare provider's guidance.
Oregano belongs to the Lamiaceae (mint) botanical family, and limited case reports and allergen reference literature have described cross-sensitivity between oregano and certain other members of this family. These relationships do not mean that a reaction to one will necessarily occur with another, and testing for oregano does not indicate anything about sensitization to these related herbs.
- Thyme: Case reports have described patients with detectable IgE to both oregano and thyme, and some individuals sensitized to oregano have also reported reactions to thyme.
- Marjoram: Marjoram is closely related to oregano botanically, and limited reports suggest possible shared allergenic proteins between the two.
- Basil: Cross-sensitivity between oregano and basil has been suggested in allergen reference literature, though well-documented clinical cases remain limited.
- Sage: As a fellow Lamiaceae member, sage has been included in some case reports evaluating cross-sensitivity among Lamiaceae herbs, though reactivity patterns vary by individual.
- Mint: Mint has appeared in case studies alongside oregano when evaluating Lamiaceae family cross-sensitivity, with some individuals reacting to mint specifically rather than oregano
Because reported cross-reactivity within the Lamiaceae family is based on limited case literature rather than large-scale studies, these relationships should be considered general context rather than a predictor of individual reactions. If reactions to related Lamiaceae herbs are a concern, discussing your symptoms and history with a healthcare provider can help determine whether additional evaluation may be worth considering.
