What's this test for?

This test is designed for people who've had organ transplants and need to monitor their immune system function. It helps doctors understand if your immune-suppressing medications are at the right level - too much increases infection risk, while too little may cause organ rejection. It's also useful if you experience frequent infections or unexplained immune system issues.

What happens after I get my results?

You'll receive detailed doctor notes in plain language explaining your immune cell function status and what it means for your risk of infection or complications. The notes include personalized guidance on whether your immunosuppressive medications may need adjustment and when to follow up with your transplant specialist. Along with your standard lab report, you can track your immune function over time using our trends feature, which is especially valuable for monitoring stability after transplantation.

What's included in this test?

This panel measures Immune Cell Function by assessing intracellular ATP levels in stimulated CD4 lymphocytes. This test measures how well your CD4 immune cells respond when stimulated by checking their energy production (ATP levels). CD4 cells are crucial for fighting infections, and measuring their activity helps assess your overall immune strength. This is particularly important for transplant patients taking immunosuppressive drugs, as it provides insight into whether your immune system is too suppressed (increasing infection risk) or not suppressed enough (increasing rejection risk).

When will I get my results?

Results are most accurate when testing is performed on the same day as your blood draw. Your healthcare provider will typically have results within a few business days. Keep in mind that testing performed one or more days after your blood draw may show falsely low results, so same-day processing is recommended for accuracy.

Who should consider getting this test?

This test is primarily for solid organ transplant recipients (kidney, liver, heart, lung) who take immunosuppressive medications. It's particularly useful if you're experiencing frequent infections, have concerns about rejection, or your doctor needs to fine-tune your medication regimen. It may also be considered for people with unexplained immune dysfunction or chronic infections.

What symptoms indicate I may need this test?

Transplant patients experiencing recurrent infections like urinary tract infections, respiratory infections, or viral reactivations may benefit from this test. Other signs include unexplained fevers, persistent fatigue, slow wound healing, or any indication your body isn't fighting off infections properly. Your transplant team may also order this if you're showing early signs of organ rejection.

How can I support my immune system after transplant?

While you must continue prescribed immunosuppressive medications, you can support overall health by practicing excellent hand hygiene and avoiding sick contacts. Eat a balanced diet rich in fruits, vegetables, and lean proteins, stay hydrated, and get adequate sleep. Avoid raw or undercooked foods that carry infection risk, and keep all follow-up appointments with your transplant team for proper monitoring.

What is cell-mediated immunity and why does it matter?

Cell-mediated immunity is your body's defense system led by CD4 lymphocytes (a type of white blood cell) that directly attacks infected cells and coordinates other immune responses. For transplant patients, these cells must be suppressed enough to prevent organ rejection, but not so much that you can't fight infections. This test measures how actively your CD4 cells respond, helping find that crucial balance.

What does a low immune cell function result mean?

Low immune cell function means your CD4 cells aren't producing much energy when stimulated, indicating your immune system is significantly suppressed. For transplant patients, this suggests you may be at higher risk for infections and your immunosuppressive medication dosage might need adjustment. Your transplant team will use this information along with other factors to optimize your treatment plan.

How often should I retest my immune function?

Testing frequency depends on your individual situation and transplant team's protocols. Early after transplantation, you may be tested more frequently (every few weeks to months) as medications are adjusted. Once stable, testing may occur every 3-6 months or when you experience infections or other complications. Your doctor will determine the best monitoring schedule based on your specific needs and medication regimen.

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.

Immune Function Test - Transplant Monitoring Panel

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]

Blood Test for Immune Function After Organ Transplant

Immune Cell Function

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

What's included in this test?

What happens after I get my results?

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

Blood Test for Immune Function After Organ Transplant

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

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