What's this test for?

This test is ideal if you're experiencing unexplained symptoms after an organ transplant, or if you're being monitored for a viral infection and want to understand how your immune system is responding. It's also useful if a recent lab result showed reduced kidney function and more information about immune activity would help you understand what's going on. Neopterin testing gives insight into your body's immune activation and cellular health status.

What happens after I get my results?

Your results will show up in your online account with the normal range clearly explained next to your value, so you can see exactly where you fall. If your neopterin level is elevated, simple next steps include reviewing recent infections or kidney health with a retest in a few weeks to see if the trend improves, since single elevated readings can happen for many reasons. You can download the full standard lab report directly from your account at any time, and the trends feature lets you track how your levels change over time if you test again in the future. If a result appears extremely abnormal alongside severe symptoms, seek medical care promptly.

What is Neopterin and why does it matter?

Neopterin is a small molecule your immune cells release when they're activated, especially in response to viral infections or when the immune system is working overtime. Doctors and labs use it as a marker to see how active your immune system is at a given moment. It matters because unusually high levels can point to an ongoing infection, reduced kidney function, or immune system stress that's worth paying attention to.

When will I get my results?

Results from this test are typically ready within about 7 days of your sample being processed at the lab. You'll get a notification once your results are posted to your secure online account. This turnaround allows enough time for the specialized testing methods used to measure neopterin accurately.

Who should consider this test?

This test is a good fit for people who have had an organ transplant and are being watched for signs of infection or immune complications. It's also relevant if you have a known viral infection and want to track how your immune system is responding, or if you have existing kidney concerns and want an additional data point on immune activity. People managing chronic conditions tied to immune function may also find this test useful for ongoing monitoring.

What symptoms indicate I may need this test?

Signs that might prompt this test include unexplained fatigue, fever, or flu-like symptoms that persist longer than expected, especially if you're immunocompromised or post-transplant. Recurring infections or a general sense that your body isn't fighting things off as well as it used to can also be a reason to check in. If you've had abnormal kidney function results recently, that's another common trigger for looking into neopterin levels.

How can I naturally support healthy immune function?

Getting consistent, quality sleep is one of the most powerful things you can do since your immune system repairs and regulates itself overnight. Eating a diet rich in colorful fruits, vegetables, and lean protein gives your body the nutrients it needs to keep immune responses balanced. Regular moderate exercise, stress management through activities like walking or meditation, and staying well hydrated all support healthy immune and kidney function over time.

What does high Neopterin mean?

A high neopterin result usually means your immune system is more activated than normal, which can happen during a viral infection, after organ transplant complications, or when kidney function is reduced and the body clears neopterin more slowly. It doesn't pinpoint one exact cause on its own, so it's often looked at alongside your symptoms and other lab values. Retesting after addressing any known infection or kidney issue can help you see if the level comes back down.

What causes high Neopterin levels?

Common causes include active viral infections, immune system activation after a transplant, or impaired kidney function that slows how quickly your body clears neopterin. Chronic inflammatory conditions and certain autoimmune issues can also raise levels. Reviewing recent health changes, medications, and kidney health can help you narrow down the likely cause.

How often should I retest?

If you're monitoring a known infection or post-transplant status, retesting every few weeks to a couple of months is common until levels stabilize. If your first result was in the normal range and you have no ongoing symptoms or risk factors, annual testing or testing only when new symptoms arise is usually enough. Your specific retesting schedule should match how your levels and symptoms are trending over time.

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.

Neopterin Blood Test - Immune Activity & Kidney 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]

Neopterin Blood Test - Immune & Kidney Function

Neopterin, Serum

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 happens after I get my results?

What is Neopterin and why does it matter?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

Find a lab near you

Neopterin Blood Test - Immune & Kidney Function

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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