What's this test for?

This test is ideal if you're experiencing confusing or inconsistent allergy test results, especially if a standard IgE allergy test came back positive but you don't actually react when exposed to that food, insect, or pollen. Cross-reactive carbohydrate determinants (CCDs) are sugar molecules found in many plants and insect venoms that can cause false-positive results on regular allergy panels. This test helps sort out whether your positive result is a true allergy or just a lab artifact caused by CCD reactivity.

What happens after I get my results?

Your results will show up in your account along with an explanation of what a positive or negative CCD IgE result means. If your result suggests your other allergy tests were false positives, the next step is usually to avoid unnecessary food or environmental restrictions and consider retesting with a more specific allergen panel if new symptoms appear. You can download a standard lab report anytime from your account, and if you test again in the future, the trends feature lets you compare results side by side.

What symptoms indicate I may need this test?

Consider this test if you've had a positive allergy blood test for a food, insect venom, or pollen but never actually experience symptoms like hives, swelling, or breathing trouble when exposed to it. It's also useful if you've been told you're allergic to multiple unrelated things (like a fruit and a pollen), since this pattern often points to cross-reactivity rather than true allergies. Confusing or contradictory allergy testing history is the main sign this test can help clear up.

How can I naturally support healthy immune and allergy responses?

Simple habits like staying hydrated, eating a variety of fresh fruits and vegetables, and getting enough sleep can help keep your immune system balanced. Reducing exposure to known irritants like dust, smoke, and strong chemical scents may also lower overall immune reactivity. Some people find that probiotics and reducing processed foods help calm overall inflammation, though this won't change a CCD reactivity pattern itself. If you have real allergy symptoms, avoiding the confirmed trigger is still the most effective step.

When will I get my results?

Results are typically ready within about 7 days of your sample being processed at the lab. You'll get a notification as soon as your results are posted to your secure online account. If you need results sooner for an urgent situation, look into faster testing options or contact the lab directly.

Who should consider this test?

This test is a good fit for anyone who has had a positive allergy IgE test but no real-world symptoms, or whose allergy testing results seem contradictory or hard to explain. It's also useful for people managing multiple suspected allergies who want to understand which results are likely genuine. If you're trying to avoid unnecessary dietary or lifestyle restrictions based on unclear allergy testing, this test can help clarify the picture.

What is CCD reactivity and why does it matter?

CCD stands for cross-reactive carbohydrate determinants, which are sugar structures found on proteins in many plants, pollens, and insect venoms. Because these sugars are similar across many different species, your immune system can react to them and trigger a positive result on a regular allergy test — even if you're not actually allergic to that specific food or insect. Understanding CCD reactivity matters because it helps avoid unnecessary avoidance of foods or activities based on a false alarm.

What does a positive CCD IgE result mean?

A positive result means your immune system has antibodies against these common plant and insect sugar structures, which likely explains why you tested positive on other allergen panels without having real symptoms. It doesn't necessarily mean you're allergic to any specific food or insect — it's more like a marker that helps explain confusing results elsewhere. In this case, your actual allergy risk should be judged more by your symptom history than by the original positive test.

How often should I retest?

Most people only need this test once, since CCD reactivity tends to be a stable pattern rather than something that changes rapidly over time. You might consider retesting if you develop new or different symptoms years later, or if you're investigating a new suspected allergy and want to rule out cross-reactivity again. There's no routine retesting schedule needed unless your health situation changes.

What should I do if my results are unclear or concerning?

If your CCD result doesn't fully explain your original allergy testing, or if you're still having real symptoms after exposure to a suspected allergen, it's worth looking into more specific component-resolved allergy testing to pinpoint the true cause. Keep a symptom diary noting what you were exposed to and what reaction you had, since this pattern is often more reliable than blood test results alone. If you ever have a severe reaction like difficulty breathing or swelling of the throat, seek emergency medical care right away.

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.

CCD IgE Test - Sort Out False Allergy Results

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

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