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Immune function panel for patients with suspected immune deficiency or recurrent infections

Lymphocyte Proliferation Panel — Immune Function Blood Test

Mitogen- and Antigen-induced Lymphocyte Proliferation Panel

  • Assess your immune system's strength
  • Detect slow-healing infection patterns
  • Track immune memory and response
$6930
First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're experiencing frequent infections, slow recovery from illness, or if you have a known condition that may be affecting your immune system. It helps show how well your white blood cells respond and multiply when they encounter germs or foreign substances. This is often used when there's concern about a weakened or overactive immune system that needs a closer look.

What's included in this test?

This panel looks at how your lymphocytes (a type of white blood cell) respond to different triggers. Some triggers are general immune activators, while others act like a memory test, checking whether your immune system remembers past exposures to common germs. Together, these responses give a fuller picture of how well your immune system is working, both in general and in specific memory situations.

What happens after I get my results?

Your results will show up in your online account, with each measurement explained alongside its normal range so you know what's expected. Depending on what the results show, next steps might include simple lifestyle changes to support immune health, retesting after a few months, or seeking prompt medical care if your immune response looks significantly out of range. You can download a standard lab report straight from your account at any time. If you test again down the road, our trends feature lets you track changes over time.

How can I naturally support my immune system?
Getting enough sleep, eating a balanced diet rich in fruits and vegetables, and managing stress are some of the simplest ways to help your immune system work well. Regular moderate exercise and staying hydrated also play a role in healthy immune function. Avoiding smoking and excessive alcohol use can further support your body's natural defenses.
When will I get my results?
Results are typically ready within about 7 days of your sample being processed at the lab. This turnaround allows time for the specialized lab work needed to measure how your immune cells respond to different stimulants. You'll get a notification as soon as your results are ready to view in your account.
Who should consider this test?
This test is a good fit for people who have had repeated or unusual infections, or who have a health condition that might affect their immune system's ability to respond properly. It can also be useful for anyone whose recent bloodwork raised questions about immune function that need more detail. If you've been told your immune system isn't working as expected, this test can offer more clarity.
What symptoms indicate I may need this test?
Frequent colds, infections that take a long time to clear up, unexplained fatigue, or recurring fevers can all be signs worth investigating further. Some people also get this test if they've had unusual reactions to vaccines or infections in the past. If you notice these patterns happening often, it may be worth looking into your immune cell function.
What does a weak lymphocyte response mean?
A weak or low response means your immune cells aren't multiplying and reacting as strongly as expected when exposed to a trigger. This can suggest your body may have a harder time fighting off infections or remembering past germ exposures. Simple steps like improving sleep, nutrition, and stress levels can help, but a very low response may call for prompt medical attention.
What does a strong lymphocyte response mean?
A strong or high response usually means your immune cells are actively multiplying and reacting well to the test triggers, which is generally a good sign of healthy immune function. In some cases, an unusually high response can point to an overactive immune system. Tracking this over time can help you understand what's normal for your body.
How often should I retest this panel?
Retesting frequency really depends on why you took the test in the first place and what your initial results showed. If your results were within the expected range and you feel well, retesting once a year or as symptoms arise is usually enough. If results were unusual, retesting in a few months can help track whether things are improving.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] 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 [email protected], and we'll gladly help you. We've got your back and reply quickly.
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 [email protected]. 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 [email protected].
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 [email protected].

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 [email protected] and we'll gladly help you.

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

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Lymphocyte Proliferation Response to PHA (Mitogen) 65,000 cpm
Demo results
Low Response Normal Response High Response
65,000 cpm

What this means

This value falls below the expected range, suggesting your immune cells aren't multiplying as strongly as expected when stimulated. A low response can mean your immune system may be slower to react to infections or challenges. This isn't a diagnosis on its own and can be affected by many factors, including recent illness or medications.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Find a lab near you

Search Quest Diagnostics and LabCorp locations available through Private MD Labs.

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Lymphocyte Proliferation Panel — Immune Function Blood Test

  • Assess your immune system's strength
  • Detect slow-healing infection patterns
  • Track immune memory and response
$6930
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
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For informational purposes only. Not medical advice.