What's this test for?

This test is ideal if you're concerned about possible exposure to tuberculosis (TB), whether from a known contact, travel to a TB-endemic country, or work in a high-risk setting like a healthcare facility, shelter, or correctional facility. It helps identify if your immune system has responded to the bacteria that causes TB. It's also a good option if you've had a BCG vaccine, since it won't be thrown off by that vaccination the way an older skin test can be.

What happens after I get my results?

Your results will appear in your account as either positive, negative, or indeterminate, with an explanation of what each result means. If your result is positive, the next step is usually additional evaluation such as a chest X-ray or symptom review to determine if you have latent infection or active TB disease. A standard lab report is available to download directly from your account, and you can revisit your results anytime using the trends feature. If your result is indeterminate, retesting with a fresh sample is typically recommended.

Who should consider this test?

This test is a good fit if you've been around someone with TB, come from or traveled to a country where TB is common, work in a high-risk environment like a nursing home or homeless shelter, or have a weakened immune system, such as from HIV. Healthcare workers who need routine TB screening also commonly use this test. It's especially useful if you've had the BCG vaccine, since it gives more accurate results than older skin-test methods in that situation.

What symptoms indicate I may need this test?

Consider this test if you have a persistent cough lasting more than three weeks, unexplained weight loss, night sweats, fatigue, or a low-grade fever. These symptoms combined with known or possible TB exposure are a strong reason to get checked. Even without symptoms, if you've had close contact with someone diagnosed with TB, testing is recommended since TB infection can be present without obvious signs.

When will I get my results?

Results are typically ready within about 7 days after your blood sample reaches the lab. This test requires your blood to be incubated at the draw site within 16 hours of collection, so timing your appointment properly helps keep the process on track. You'll receive a notification once your results are posted to your account.

What does a positive result mean?

A positive result means your immune system has reacted in a way that's associated with TB infection, but it doesn't tell you whether you have latent (inactive) infection or active TB disease. Additional evaluation, such as a chest X-ray or symptom check, is needed to figure out which one applies to you. If you have symptoms like a persistent cough, fever, or weight loss along with a positive result, it's important to seek medical care promptly to rule out active disease.

What does a negative result mean?

A negative result generally means there's no evidence your immune system has responded to TB bacteria, making TB infection unlikely at the time of testing. However, if you were exposed very recently, it can take several weeks for your immune system to react, so a repeat test later may be recommended. Negative results are considered highly reliable in people at low risk for TB.

What can cause an indeterminate or unexpected result?

An indeterminate result can happen if your immune system's baseline response is unusually high or if the sample's response to test controls falls outside expected patterns. This can occur with a weakened immune system, certain medications, or issues with how quickly the sample was incubated after the blood draw. If this happens, retesting with a new sample usually resolves the issue.

How often should I retest?

If you have ongoing exposure risk, such as working in a healthcare or high-risk facility, annual retesting is a common practice. If you were recently exposed to someone with active TB, retesting 8-10 weeks after exposure is recommended since it can take that long for a reaction to show up. Otherwise, retesting is generally only needed if you have new exposure or new symptoms.

What should I do if my results are abnormal?

If your result is positive, the recommended next step is further evaluation like a chest X-ray and a review of your symptoms to distinguish between latent infection and active disease. Avoid close contact with others if you have a cough, fever, or night sweats until this is sorted out, since active TB can be contagious. If you experience trouble breathing, coughing up blood, or high fever, seek medical care right away.

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.

TB Blood Test - QuantiFERON Gold Plus Screening

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]

TB Blood Test (QuantiFERON-TB Gold Plus)

QuantiFERON®-TB Gold Plus, 4 Tubes, Draw Site Incubated

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

What's this test for?

What happens after I get my results?

Who should consider this test?

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

Find a lab near you

TB Blood Test (QuantiFERON-TB Gold Plus)

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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