What's this test for?

This test is ideal if you're being evaluated for or currently managing Non-Hodgkin's Lymphoma and need to know whether your cancer cells carry the CD20 marker. Knowing your CD20 status helps determine whether a treatment like Rituxan, which targets CD20, is likely to work against your specific lymphoma. It's typically used alongside other diagnostic and treatment-planning steps.

What's included in this test?

This test measures whether the CD20 protein is present on the surface of your lymphoma cells. This single marker matters because it directly predicts whether CD20-targeted antibody treatments, like Rituxan, can attach to and destroy the cancer cells. Knowing this status upfront helps avoid starting a treatment that wouldn't be effective for your particular cancer.

What happens after I get my results?

Your results will show up in your account with a plain-language explanation of what CD20 positive or negative means and how it compares to expected ranges. If your result is positive, a reasonable next step is discussing CD20-targeted treatment options as part of your care plan; if unclear or negative, retesting or additional biomarker testing may be worthwhile. You can download the full standard lab report directly from your account at any time. You'll also be able to track this result over time using the trends feature if you test again in the future.

How can I naturally support my immune system during lymphoma treatment?

While no natural remedy replaces targeted cancer treatment, supporting your body with good sleep, regular gentle movement, and a diet rich in fruits, vegetables, and lean protein can help you feel stronger during treatment. Staying well-hydrated and minimizing alcohol and processed foods may also help your body handle treatment better. Reducing stress through activities like light walking, meditation, or breathing exercises can support overall wellbeing during this time. Always pair these habits with the treatment plan you and your care team have already established.

When will I get my results?

Results for this test are typically ready within about 7 days of your sample being collected. You'll receive a notification once your results are posted to your secure online account. This timeframe allows the lab to properly process and analyze the specialized CD20 marker test.

Who should consider this test?

This test is most relevant for people who have been diagnosed with, or are being worked up for, Non-Hodgkin's Lymphoma, especially B-cell types. It's also useful for anyone whose treatment team is considering CD20-targeted therapies like Rituxan and needs confirmation that the cancer cells express this marker. If you've had prior lymphoma treatment and are exploring next steps, this test can also help guide those decisions.

What symptoms indicate I may need this test?

Symptoms like persistent swollen lymph nodes, unexplained weight loss, night sweats, ongoing fatigue, or recurring fevers can be signs of lymphoma and may prompt this kind of testing. These symptoms alone don't confirm cancer, but combined with other findings, they're often what leads to a CD20 status check. If you're already diagnosed with lymphoma, this test is typically ordered regardless of symptoms to guide treatment choice.

What does a positive CD20 result mean?

A positive result means the CD20 protein is present on your lymphoma cells, which is actually good news for treatment options because it means CD20-targeted therapies like Rituxan have a target to attach to and destroy those cells. This doesn't change your diagnosis, but it does open up an effective treatment pathway. Your full report will explain the result in the context of your specific case.

What does a negative CD20 result mean?

A negative result means your lymphoma cells don't show enough of the CD20 marker, so CD20-targeted treatments like Rituxan likely won't be effective. This isn't a sign your condition is worse, it simply means a different treatment approach targeting other pathways would be more appropriate. Discussing alternative therapy options is the typical next step.

How often should I retest CD20 status?

CD20 status is usually tested once at diagnosis or before starting targeted therapy, since it doesn't typically change quickly. However, if your lymphoma returns after treatment or transforms into a different subtype, retesting can confirm whether CD20-targeted therapy is still a good option. Your treatment timeline will usually guide when retesting makes sense.

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.

Rituxan CD20 Sensitivity Test - Lymphoma Treatment Guide

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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