What's this test for?

This test is ideal if you're working through a biopsy or tissue diagnosis process and need more detail about the cells in a sample. CD3 IHC (immunohistochemistry) is a specialized lab technique used to identify a specific marker on T-cells within tissue, which helps clarify what type of cells are present in a suspicious growth or lymph node sample. It's typically ordered as a follow-up to a biopsy rather than as a standalone screening test.

What's included in this test?

This test looks specifically for the CD3 marker, a protein found on T-cells, using a technique called immunohistochemistry that stains tissue samples so specific cells can be seen and identified under a microscope. This matters because knowing whether T-cells are present, and in what pattern, helps distinguish between different types of tissue changes. A written interpretation from the lab is included to explain the significance of the staining pattern found.

What happens after I get my results?

Your results will be available in your account, along with an explanation of what the findings mean for the tissue sample tested. Because this is a specialized pathology test, the report includes interpretation notes describing what was found and how it compares to expected patterns. You can download the full lab report from your account at any time, and if you have related testing in the future, you'll be able to track your history through the trends feature. If any finding is flagged as urgent, seek medical care right away.

How can I naturally support my immune system?

While this test itself is diagnostic and not something lifestyle changes will alter, supporting your overall immune health can still be worthwhile. Eating a balanced diet rich in fruits, vegetables, and lean protein, getting consistent sleep, managing stress, and staying active all help your immune system function well. Avoiding smoking and excessive alcohol also supports healthier tissue and immune response over time.

When will I get my results?

Results for this test are generally ready within about 7 days, since specialized pathology staining and interpretation take longer than routine bloodwork. You'll receive a notification when your report is ready to view in your account. If your situation feels time-sensitive, keep in mind that pathology tests like this often take longer than standard lab panels because of the detailed tissue analysis involved.

Who should consider this test?

This test is generally considered by people who already have a tissue or biopsy sample that needs further characterization, often as part of working up a lymph node abnormality or suspicious growth. It's not a general screening test and isn't typically ordered without a specific tissue sample already collected. If you've been advised that additional marker testing on a sample would be helpful, this is the type of test that provides that detail.

What is CD3 and why does it matter?

CD3 is a protein marker found on the surface of T-cells, a type of white blood cell that plays a key role in your immune system. Identifying CD3 in a tissue sample helps confirm the presence of T-cells and can help characterize the type of cells involved in a growth or abnormal tissue area. This information is useful for understanding what's happening in a specific sample rather than for general health screening.

What does an unusual CD3 staining pattern mean?

An unusual or unexpected CD3 staining pattern means the T-cells in the sample look different than what's typically expected in normal tissue. This finding on its own doesn't diagnose a specific condition, but it gives more detail about the cell types present in the sample. The full written interpretation in your report will explain what the specific pattern found may suggest.

How often should I retest?

This isn't a routine test you'd repeat on a regular schedule; retesting usually only happens if a new tissue sample needs to be evaluated for a specific reason. There's no standard interval for CD3 IHC testing since it depends entirely on your individual situation and any new samples collected. If retesting is relevant to your situation, it would be based on new tissue availability rather than a set timeline.

What should I do if my results are unusual?

If your report notes an unusual finding, read through the full interpretation included with your results, as it will explain what the finding means in context. Keep a copy of the report for your records, since detailed pathology findings are often useful to have on hand for future reference. If the report suggests urgency or you're experiencing concerning symptoms, seek medical care promptly.

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.

CD3 IHC Test - T-Cell Tissue Analysis & Report

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]

CD3 Immunohistochemistry Tissue Test with Interpretation

CD3, IHC with Interpretation

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

What's this test for?

What's included in this test?

What happens after I get my results?

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CD3 Immunohistochemistry Tissue Test with Interpretation

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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