What's this test for?

This test is ideal if you're experiencing frequent infections, unexplained fatigue, or if you have a known immune condition that needs monitoring. It helps check how well your white blood cells (lymphocytes) respond and multiply when challenged, which reflects how strong your overall immune system is. This is often used when there's concern about immune deficiency, chronic infections, or to track immune status during certain treatments.

What's included in this test?

This test measures how your lymphocytes (a type of white blood cell) respond and grow when exposed to substances called mitogens. Different mitogens challenge your immune cells in different ways, so looking at these responses together gives a fuller picture of how well your immune system can react to threats. This kind of functional testing goes beyond just counting cells — it shows whether they're actually working properly.

What happens after I get my results?

Your results will show up in your account, with each value's normal range clearly explained so you know what's typical versus what stands out. If your lymphocyte response comes back lower than expected, simple next steps include reducing stress, prioritizing sleep, and improving nutrition to support your immune system, then retesting in a few months to see if things have changed. A downloadable lab report is available directly from your account, and you can use the trends feature to track your immune markers over time. If a result comes back significantly abnormal, seeking prompt medical care is recommended.

How can I naturally support my immune system?

Getting consistent, quality sleep is one of the most powerful ways to help your immune cells function well. Eating a balanced diet rich in fruits, vegetables, lean protein, and healthy fats gives your body the nutrients it needs to build a strong immune response. Regular moderate exercise, stress management techniques like meditation, and staying hydrated can also help keep your immune system responsive.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. This timeframe allows the lab to properly culture and measure the lymphocyte response to each mitogen, which takes longer than a standard blood test. You'll be notified as soon as your results are uploaded to your account.

Who should consider this test?

This test is a good fit for anyone with a history of frequent or unusual infections, unexplained chronic fatigue, or a suspected immune system problem. It's also useful for people who want to monitor immune function over time, such as those managing a chronic illness. If you've noticed your body seems to take longer than usual to fight off common illnesses, this can offer useful insight.

What symptoms indicate I may need this test?

Common signs include getting sick more often than people around you, infections that linger longer than they should, unexplained fatigue, or slow wound healing. Recurrent fevers or infections in unusual places on the body can also be a signal. If you've noticed a pattern of your body struggling to bounce back from illness, this test can help clarify what's going on.

What does a low lymphocyte proliferation response mean?

A lower-than-expected response means your immune cells aren't multiplying and reacting as strongly as they should when challenged. This can sometimes point to an underlying issue with immune function, whether from illness, stress, poor nutrition, certain medications, or other factors. Simple lifestyle changes like improving sleep, nutrition, and reducing stress can help, and retesting later can show if your numbers improve.

What causes an abnormal lymphocyte response?

Abnormal results can stem from a variety of causes, including chronic stress, poor nutrition, lack of sleep, certain medications, infections, or underlying health conditions that affect the immune system. Age and lifestyle factors like smoking or excessive alcohol use can also play a role. Identifying and addressing these factors is often the first step toward improving immune function.

How often should I retest?

If your results are within a healthy range and you're not experiencing symptoms, retesting once a year or as part of a routine check-in is generally enough. If your results were abnormal or you're actively working on improving your immune health through lifestyle changes, retesting every 3 to 6 months can help you track progress. Those managing a known immune condition may need more frequent monitoring based on their specific situation.

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.

PWM Lymphocyte Proliferation Test - Immune Function 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]