What's this test for?

This test is ideal if you're being evaluated for prostate cancer and your tissue sample needs further analysis. It's a specialized lab test (immunohistochemistry) that helps identify prostate-specific cells in a tissue sample. This test does not include an interpretation of the results, so it's typically used alongside other diagnostic information.

What's included in this test?

This test uses a technique called immunohistochemistry (IHC) to detect NKX 3.1, a protein marker found in prostate cells. Identifying this marker helps confirm whether tissue cells are prostate in origin, which is a key step when evaluating a possible prostate cancer diagnosis. It's a targeted, single-marker test rather than a broad panel.

What happens after I get my results?

Your results will be available in your account, and the report will explain the test findings. Because this test is provided without interpretation, the raw findings are meant to be used alongside other clinical information rather than acted on alone. You can download the standard lab report directly from your account at any time, and if you order related tests in the future, you'll be able to track results over time using the trends feature. If anything about your results is unclear, it's a good idea to have all your related test findings reviewed together for the full picture.

How can I naturally support prostate health?

Eating more vegetables, especially tomatoes, cruciferous vegetables, and foods rich in healthy fats like fish, can support overall prostate health. Staying physically active and maintaining a healthy weight are also linked to better prostate outcomes. Limiting red meat, processed foods, and excess alcohol may help as well. These habits support general health but don't replace proper diagnostic follow-up for existing concerns.

When will I get my results?

Results for this test are typically available within about 7 days after your sample is processed. Because this is a specialized tissue-based test, it can take a bit longer than standard blood work. You'll be notified as soon as your results are ready to view in your account.

Who should consider this test?

This test is generally considered for men who have had a prostate tissue biopsy or sample taken and need further analysis to confirm whether the cells are prostate in origin. It's often used as a follow-up step in the prostate cancer diagnostic process rather than as an initial screening test. If you've already had imaging or blood work suggesting a possible concern, this test may be a relevant next step.

What symptoms indicate I may need this test?

Symptoms like difficulty urinating, frequent urination (especially at night), blood in urine, or pelvic discomfort can sometimes prompt further prostate evaluation. However, this specific test is usually ordered after a tissue sample has already been collected, not based on symptoms alone. If you're experiencing these symptoms, it's worth getting evaluated further to determine if tissue testing is appropriate.

What is NKX 3.1 and why does it matter?

NKX 3.1 is a protein that is normally found in prostate gland cells. Pathologists use it as a marker to confirm whether cells in a tissue sample originated from the prostate, which is important when trying to pinpoint the source of certain cancers. It's considered a highly specific marker, meaning it's good at correctly identifying prostate-origin tissue.

How often should I retest?

This type of test is not typically repeated on a routine schedule since it's tied to a specific tissue sample from a specific procedure. If you have a new biopsy or tissue sample in the future, a new test may be ordered at that time. Your retesting needs will depend on your individual diagnostic and monitoring plan.

What should I do if my results are abnormal?

Since this test is provided without interpretation, an abnormal or positive finding should be considered alongside your other diagnostic results for the full clinical picture. Keep a copy of your report and any related test results together so they can be reviewed as a complete set. If you have concerning symptoms or urgent findings, 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.

NKX 3.1 IHC Test - Prostate Cancer Marker

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]

NKX 3.1 Prostate Marker Tissue Test (IHC)

NKX 3.1, IHC without 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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NKX 3.1 Prostate Marker Tissue Test (IHC)

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

1,000,000+ blood tests later, here's what our customers say