What's this test for?

This test is ideal if you're experiencing itching, hives, swelling, stomach upset, or other reactions after eating rhubarb or foods containing it. It checks whether your immune system is producing an allergic response to rhubarb specifically, helping you figure out if this food is the cause of your symptoms. It's also useful if you suspect a rhubarb allergy but haven't been able to confirm it.

What's included in this test?

This test measures allergen-specific IgE antibodies, which are immune proteins your body makes when it identifies a substance like rhubarb as a threat. A higher level of these antibodies suggests your immune system is sensitized to rhubarb, which can explain allergy-type symptoms after exposure. Understanding this single, targeted marker helps you connect specific foods to your symptoms without guesswork.

What happens after I get my results?

Your results will show up in your online account with the normal reference range clearly explained so you know exactly what your number means. If your result is elevated, a simple next step is to avoid rhubarb and related foods and watch for symptom improvement, then retest later if needed to confirm. A downloadable lab report is available from your account for your records, and you can use the trends feature to track this marker over time if you get tested again. If you have a severe reaction like difficulty breathing or swelling of the throat, seek medical care right away.

How can I naturally support my immune system if I have food sensitivities?

Keeping a food and symptom diary can help you spot patterns and avoid trigger foods more easily. Eating a varied, whole-food diet, staying hydrated, and getting enough sleep all support healthy immune function overall. Some people find that reducing processed foods and added sugars helps lower general inflammation, which may ease sensitivity symptoms.

When will I get my results?

Results are typically ready within about 7 days after your sample is collected at the lab. Once ready, they'll be posted directly to your secure online account so you can view and download them at your convenience.

Who should consider this test?

This test is a good fit for anyone who notices symptoms like hives, itching, digestive discomfort, or swelling after eating rhubarb or rhubarb-containing dishes. It's also helpful for people trying to narrow down the cause of unexplained allergic reactions where rhubarb is a suspected trigger. Parents wanting to confirm a suspected food allergy in a family member may also find this test useful.

What symptoms indicate I may need this test?

Common signs include itching or tingling in the mouth, hives or skin rashes, swelling of the lips or face, stomach cramps, nausea, or digestive upset after eating rhubarb. Some people also experience nasal congestion or mild breathing changes. If these symptoms show up consistently after eating rhubarb-containing foods, this test can help confirm the connection.

What does a high IgE result mean?

A high result means your immune system has likely identified rhubarb as an allergen and is producing antibodies against it, which can trigger symptoms like itching, swelling, or digestive upset when you eat it. The higher the level, the more likely rhubarb is contributing to your symptoms, though the exact severity of a reaction can vary from person to person. Avoiding rhubarb and related foods is a practical first step if your result comes back elevated.

How often should I retest?

If you've eliminated rhubarb from your diet and your symptoms have improved, there's usually no need to retest unless symptoms return or you want to confirm your allergy has changed over time. Some people choose to retest every year or two, especially if allergies were diagnosed in childhood, since sensitivities can shift as you age. Retesting after a period of avoidance can also help confirm whether the allergy is still present.

What should I do if my results are abnormal?

If your IgE level is elevated, start by avoiding rhubarb and any foods or products that contain it, and pay attention to whether your symptoms improve. Reading ingredient labels carefully can help you avoid hidden sources of rhubarb in prepared foods. If you experience severe symptoms like difficulty breathing, swelling of the throat, or dizziness after exposure, seek emergency medical care immediately.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Rhubarb Allergy Test - IgE Food Sensitivity Check

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]