Rabbit F213 IgE (F213) Allergy Blood Biomarker Testing
It measures IgE sensitization to rabbit allergen. Get clear next steps with PocketMD guidance and convenient ordering through Vitals Vault labs.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
Rabbit F213 IgE is a blood test that looks for allergen-specific IgE antibodies to rabbit. In plain terms, it helps show whether your immune system is sensitized to rabbit proteins that can trigger allergy symptoms.
This test is most useful when you have symptoms that line up with exposure, such as sneezing, itchy or watery eyes, nasal congestion, cough or wheeze, or hives after handling rabbits or being in a home where rabbits live.
A positive result does not automatically mean you will have a reaction every time you are around rabbits, and a negative result does not rule out every type of rabbit-related problem. The goal is to add objective data to your history so you and your clinician can make more confident decisions about avoidance, treatment, and whether broader allergy testing is needed.
Do I need a Rabbit F213 IgE test?
You may want Rabbit F213 IgE testing if your symptoms reliably flare around rabbits or rabbit environments. Common patterns include nasal allergies (runny nose, sneezing, post-nasal drip), eye irritation, skin itching or hives after contact, or asthma-like symptoms such as chest tightness and wheeze.
This test can also be helpful if you are trying to figure out whether a “pet allergy” is specifically rabbit versus another trigger in the same setting, such as hay, dust mites, or other animals. If you work with rabbits (veterinary, research, farming, grooming) or you are considering bringing a rabbit into your home, testing can support a risk conversation before exposure increases.
You might not need this test if your symptoms are clearly seasonal, you have no rabbit exposure, or your reactions are better explained by infections or irritants (like smoke or strong fragrances). If you have had severe reactions, trouble breathing, or swelling of the lips or throat, treat that as urgent and discuss a safety plan with a clinician.
Testing is meant to support clinician-directed care and shared decision-making. It is not a standalone diagnosis, and your symptom history still matters.
This is typically a CLIA-performed allergen-specific IgE blood assay (immunoassay); results should be interpreted with your symptoms and exposure history, not used as a diagnosis by itself.
Lab testing
Order Rabbit F213 IgE through Vitals Vault when you’re ready to confirm whether rabbit is a likely trigger.
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
Vitals Vault makes it straightforward to order Rabbit F213 IgE when you want an objective data point to discuss with your clinician. You can choose a single test when your question is specific (for example, “Is rabbit a likely trigger for me?”) or pair it with related allergy markers if your symptoms are broader.
After your results are ready, PocketMD can help you translate the numbers into practical next steps, such as what “sensitization” means, when a retest is reasonable, and which companion tests can clarify the picture. You can bring that summary into a visit with your allergist or primary care clinician.
If you are tracking symptoms over time—such as after removing a rabbit from the home, changing work exposure, or starting allergy medications—Vitals Vault also makes it easy to reorder the same test so you can compare results consistently.
- Order online and use a national lab network for blood draw
- PocketMD summaries to support a focused clinician conversation
- Easy reordering when you need follow-up or trend checks
Key benefits of Rabbit F213 IgE testing
- Helps confirm whether rabbit is a plausible trigger when your symptoms follow exposure.
- Separates rabbit sensitization from other common “pet allergy” causes in the same environment.
- Supports asthma and rhinitis planning when animal exposure is hard to avoid (work, family, housing).
- Guides practical avoidance steps, such as cleaning routines and exposure reduction, with more confidence.
- Provides a baseline you can compare against if your exposure changes or symptoms evolve.
- Helps your clinician decide whether broader inhalant or food allergy testing is worth adding.
- Pairs well with PocketMD interpretation so you can turn a lab value into a clear follow-up plan.
What is Rabbit F213 IgE?
Rabbit F213 IgE is a “specific IgE” blood test. It measures the amount of IgE antibody in your blood that binds to rabbit allergen extracts (often associated with rabbit dander, saliva, and urine proteins). IgE is the antibody class involved in immediate-type allergic reactions.
If you are sensitized, your immune system has learned to recognize rabbit proteins as a threat. When you are exposed, that recognition can trigger histamine release and other inflammatory signals, which can lead to symptoms such as sneezing, itchy eyes, hives, or asthma symptoms.
This test does not measure how severe your symptoms will be. It measures sensitization, which is one piece of the puzzle alongside your exposure history, timing of symptoms, exam findings, and sometimes additional testing (like skin testing or other specific IgE markers).
Sensitization vs. clinical allergy
A positive Rabbit F213 IgE means your immune system has IgE that recognizes rabbit proteins. You are more likely to have rabbit-related symptoms, but some people with positive IgE have minimal symptoms, especially if exposure is low. A negative result makes rabbit allergy less likely, but it does not rule out non-IgE reactions or symptoms driven by other triggers in the rabbit environment.
Why rabbit exposure can be tricky
Rabbit allergens can cling to clothing, upholstery, and carpets, and they may be present even when the animal is not in the room. Symptoms can also be confused with hay or bedding exposure, which can carry dust, molds, or pollen. That is why your history and, sometimes, additional testing matter.
What do my Rabbit F213 IgE results mean?
Low Rabbit F213 IgE (negative or very low)
A low result generally means rabbit-specific IgE was not detected or is present at a very low level. If you have no symptoms with rabbit exposure, this usually supports that rabbit is not a major trigger for you. If you do have symptoms, consider whether the real trigger is something nearby (hay, dust mites, molds, other pets) or whether your symptoms are non-allergic (irritant rhinitis, viral illness). If your exposure is intermittent or your symptoms are strongly suggestive, your clinician may still consider skin testing or a broader inhalant panel.
In-range Rabbit F213 IgE (interpretation depends on the lab’s cutoffs)
For allergen-specific IgE, “in range” often means the lab reports a value that falls below a positivity threshold, or it may report a low-level positive class. What matters most is whether the number matches your real-world reactions. If you have mild symptoms only with heavy exposure, a low-level positive can still be meaningful. If you have no symptoms at all, a borderline result may represent sensitization without clinical allergy.
High Rabbit F213 IgE (positive sensitization)
A high result suggests stronger sensitization to rabbit allergens and increases the likelihood that rabbit exposure contributes to your symptoms. It does not prove that rabbit is the only trigger, and it does not predict reaction severity on its own. Use the result to guide next steps: confirm exposure patterns, review asthma control if you wheeze, and discuss avoidance strategies and treatment options with your clinician. If you are considering immunotherapy or you have complex symptoms, your clinician may recommend additional allergen testing to map out the full trigger profile.
Factors that can influence Rabbit F213 IgE
Your recent and ongoing exposure to rabbits can affect how relevant the result is to your current symptoms, even though IgE levels do not change overnight. Having multiple allergies (atopy), eczema, allergic asthma, or allergic rhinitis can make positive specific IgE results more likely across several allergens. Medications like antihistamines do not usually change blood IgE results (they mainly affect symptoms and skin testing), but immune-modifying therapies and certain medical conditions can sometimes affect antibody measurements. Lab methods and reporting classes vary, so compare results using the same lab when you are trending over time.
What’s included
- Rabbit (F213) Ige
Frequently Asked Questions
What does the Rabbit F213 IgE test measure?
It measures allergen-specific IgE antibodies in your blood that bind to rabbit proteins. This helps identify sensitization that can be associated with allergy symptoms when you are exposed to rabbits or rabbit environments.
Do I need to fast for a Rabbit IgE blood test?
Fasting is not usually required for allergen-specific IgE testing. If you are combining this with other labs that do require fasting, follow the instructions for the full order.
Can antihistamines affect Rabbit F213 IgE results?
Antihistamines typically do not change blood IgE measurements, but they can reduce your symptoms and can interfere with skin prick testing. Tell your clinician what you are taking so they can choose the most appropriate testing approach.
If my Rabbit F213 IgE is positive, does that mean I’m definitely allergic to rabbits?
A positive result means sensitization, which increases the likelihood of clinical allergy, but it is not definitive by itself. Your timing of symptoms with exposure, other triggers in the environment, and sometimes additional testing determine whether it is a true clinical rabbit allergy.
If my Rabbit F213 IgE is negative, can I still react around rabbits?
Yes. A negative result makes IgE-mediated rabbit allergy less likely, but symptoms can still come from irritants, infections, or other allergens present with rabbits (such as hay, dust mites, molds, or other pets). If your history is strong, discuss follow-up testing with your clinician.
How soon should I retest Rabbit F213 IgE?
Retesting is usually considered when something meaningful changes, such as removing a rabbit from the home, starting a new treatment plan, or having a clear shift in symptoms. Many people wait several months or longer so trends are easier to interpret, but your clinician can tailor timing to your situation.
What related tests are helpful if I suspect a rabbit allergy?
Companion testing often includes other inhalant allergens that commonly overlap with pet environments, such as dust mites, molds, grasses, and other animal danders. If symptoms occur with eating certain foods or you have hives without clear exposure, your clinician may recommend additional targeted food IgE tests.