What's this test for?

This test is ideal if you're being treated for inflammatory bowel disease (Crohn's disease or ulcerative colitis) with adalimumab (Humira) and your symptoms aren't improving as expected, or if you're losing your response to the medication over time. It checks whether you have enough of the drug in your blood to control inflammation and whether your body has started making antibodies against it. This information helps explain why a biologic medication may have stopped working well for you.

What happens after I get my results?

Your results will show up in your account with both your adalimumab level and antibody status, along with an explanation of what the ranges mean. Depending on the pattern, next steps may include discussing a dose adjustment, a shorter interval between doses, or a switch to a different biologic therapy. You can download a standard lab report from your account at any time, and if you retest in the future you'll be able to track your drug levels and antibody status over time using the trends feature. If you experience severe abdominal pain, high fever, or other serious symptoms, seek medical care right away.

Who should consider this test?

Anyone currently on adalimumab for Crohn's disease or ulcerative colitis who is having a flare-up, incomplete symptom relief, or a return of symptoms after initially doing well should consider this test. It's also useful for people who want to confirm their medication is working before making any treatment changes. Checking proactively, even when doing well, can catch a declining drug level before symptoms return.

What symptoms indicate I may need this test?

Watch for returning or worsening symptoms like abdominal pain, diarrhea, blood in your stool, unexplained fatigue, or weight loss while on adalimumab. These can signal that your drug level has dropped too low or that your body is fighting off the medication with antibodies. New joint pain or skin rashes can sometimes accompany antibody development as well.

When will I get my results?

Results are typically available within about 7 days of your blood draw. This turnaround allows the lab to run both the drug level and antibody portions of the test accurately. You'll receive a notification once your results are ready to view in your account.

What is adalimumab drug level and why does it matter?

Adalimumab drug level, also called a trough level, measures how much of the medication is still in your bloodstream right before your next dose. Having enough drug on board is important because low levels are often linked to poor symptom control and ongoing inflammation. Experts generally consider a level of 7.5 mcg/mL or higher a good target for people with active disease.

What does high anti-drug antibody mean?

A detectable or high level of anti-drug antibody means your immune system has started to recognize adalimumab as foreign and is working to clear it from your body faster than normal. This often leads to low drug levels and reduced symptom control over time. If antibodies are present along with a low drug level, switching to a different biologic class tends to work better than simply increasing the dose.

What causes low adalimumab levels?

Low levels can happen if you haven't been on the medication long enough to reach a steady state, if your dose or dosing schedule isn't quite right for your body, or if antibodies are clearing the drug too quickly. Other conditions like kidney disease or protein loss through the gut can also cause your body to lose antibodies and drug faster than usual. Missed or delayed doses can contribute too.

How often should I retest?

Retesting is often considered whenever symptoms change, when a dose adjustment is being considered, or periodically during long-term therapy to catch antibody development early. Many people on stable, well-controlled treatment retest every several months, but timing should be based on your individual symptom pattern. Testing sooner is reasonable if you notice a return of symptoms.

What should I do if my results are abnormal?

If your drug level is low and no antibodies are found, an increased dose or shorter interval between doses may help restore control. If antibodies are detected alongside a low drug level, this usually means the current medication is being cleared too fast, and a switch to a different biologic class is often more effective than a dose increase. If your level is therapeutic but you still have symptoms, the inflammation may not be driven by the same pathway this drug targets, making a different treatment approach worth exploring.

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.

Adalimumab Level & Antibody Test - IBD Treatment 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

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