What's this test for?

This test is ideal if you've received an organ transplant and are taking Tacrolimus (Prograf) to prevent rejection. It helps ensure your medication dose is working effectively without causing harmful side effects like kidney damage or infection risk. Regular monitoring keeps your medication levels in the safe and effective range, protecting both your transplanted organ and your overall health.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining whether your Tacrolimus level is in the therapeutic range and what that means for your transplant health. The notes include specific guidance on whether your medication dose needs adjustment, signs to watch for, and when to follow up with your transplant team. Along with your standard lab report, you can track your Tacrolimus levels over time using our trends feature, which is especially valuable for monitoring medication effectiveness and catching any concerning changes early.

What's included in this test?

This test measures Tacrolimus using highly sensitive LC/MS/MS methodology. This test measures the precise concentration of Tacrolimus in your blood using a highly sensitive LC/MS/MS method, which is the gold standard for immunosuppressant drug monitoring. It reveals how well your body is absorbing and processing the medication, helping your transplant team adjust your dose to prevent organ rejection while minimizing side effects like kidney problems, high blood pressure, or increased infection risk. Maintaining the right Tacrolimus level is critical for long-term transplant success and your quality of life.

How should I prepare for this test?

You should have your blood drawn 1 hour before taking your next Tacrolimus dose, which is known as a trough level. This timing is important because it measures the lowest concentration in your blood before the next dose, giving your doctor the most accurate information for dose adjustments. Continue taking your medication as prescribed unless your transplant team instructs otherwise.

When will I get my results?

Results are typically available within a few business days after your sample reaches the lab. Since this is a specialized test using LC/MS/MS technology, processing may take slightly longer than routine blood work, but you'll receive your results as quickly as possible. Your doctor will review them promptly to ensure your medication dosing remains safe and effective.

Who should consider getting this test?

This test is essential for anyone who has received an organ transplant (kidney, liver, heart, lung, or pancreas) and is taking Tacrolimus as an immunosuppressant medication. Your transplant team will typically order this test regularly after your transplant, especially during the first year when dose adjustments are more common. It's also important if you're experiencing symptoms like tremors, headaches, kidney problems, or infections that might indicate your dose needs adjustment.

What symptoms indicate my Tacrolimus level might be off?

If your Tacrolimus level is too low, you might experience signs of organ rejection like fever, pain over the transplant site, or decreased organ function. If your level is too high, you may notice tremors, headaches, numbness or tingling, nausea, increased blood pressure, kidney problems, or frequent infections. Any of these symptoms warrant immediate contact with your transplant team and possibly retesting your Tacrolimus level.

What is Tacrolimus and why does it matter for transplant patients?

Tacrolimus (brand name Prograf) is an immunosuppressant medication that prevents your immune system from attacking and rejecting your transplanted organ. After transplant surgery, your body naturally sees the new organ as foreign and tries to reject it, so Tacrolimus suppresses this immune response to keep your transplant healthy. Finding the right dose is crucial—too little risks organ rejection, while too much increases your risk of infections, kidney damage, and other side effects.

What does a high Tacrolimus level mean?

A high Tacrolimus level means your body has more of the medication than needed, which increases your risk of side effects like kidney damage, tremors, high blood pressure, headaches, and infections. Your transplant doctor will likely reduce your dose and may retest more frequently until your level stabilizes. It's important not to adjust your medication on your own—always follow your transplant team's instructions.

What does a low Tacrolimus level mean?

A low Tacrolimus level means there isn't enough medication in your system to adequately suppress your immune system, putting you at higher risk of organ rejection. This can happen if you're not absorbing the medication properly, missing doses, or if your body's metabolism has changed. Your doctor will likely increase your dose and monitor you closely with more frequent testing to ensure the new dose is effective.

How often should I retest my Tacrolimus level?

Testing frequency depends on how long ago you received your transplant and how stable your levels are. In the first few months after transplant, you may need testing weekly or even more often as your doctor fine-tunes your dose. Once your levels are stable, testing may occur monthly, then eventually every few months. You'll also need retesting whenever your dose changes, if you start new medications, or if you have symptoms suggesting your level might be off.

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.

Tacrolimus Test - Transplant Medication Monitoring

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]

Tacrolimus Blood Test for Transplant Medication Monitoring

Tacrolimus, Highly Sensitive, LC/MS/MS

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?

How should I prepare for this test?

What's included in this test?

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

Tacrolimus Blood Test for Transplant Medication Monitoring

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