What's this test for?

This test is ideal if you're experiencing an unexplained fever along with symptoms like headache, chills, stomach cramps, or body aches, especially after a tick bite, travel, or contact with farm animals or contaminated food. It checks your blood for antibodies to specific bacteria that cause serious febrile illnesses, helping narrow down what might be causing your fever. It's especially useful if your fever has lasted several days without a clear explanation.

What's included in this test?

This panel checks for antibodies against four different bacteria that commonly cause fever: one spread by ticks, one by fleas, one from contaminated food, and one from contact with farm animals or unpasteurized dairy. Testing for all four at once helps narrow down the cause of a fever when the source isn't obvious from symptoms alone. This is especially helpful because these infections can look similar early on but need different treatments.

What happens after I get my results?

Your results will show up in your account with each antibody level explained alongside its normal range, so you can see exactly what the numbers mean. Because a single result isn't always conclusive for these infections, you may need a second, follow-up test 2-4 weeks later to check for a rising antibody titer, which confirms an active infection. If your fever is severe, worsening, or comes with symptoms like rash, confusion, or difficulty breathing, seek medical care right away rather than waiting on results. You can download the full lab report anytime and use the trends feature to track your antibody levels over time.

How can I naturally support recovery while waiting on results?

While you wait for results, focus on staying well hydrated and getting plenty of rest, since fever increases your body's fluid needs. Eating light, easy-to-digest foods can help if you have stomach symptoms from a possible foodborne infection. Avoid raw or unpasteurized dairy products and undercooked meat until you know what's causing your symptoms. These steps support your body's recovery but don't replace seeking care if your fever is high or persistent.

When will I get my results?

Results are typically ready within about 7 days after your blood is drawn. Because these infections often require comparing antibody levels from two blood draws taken weeks apart, your final interpretation may take longer if a follow-up sample is needed. You'll get a notification as soon as your results are available in your account.

Who should consider this test?

This test is a good option for anyone with an unexplained fever, especially if you've been in an area with ticks or fleas, traveled to regions where these infections are common, eaten potentially contaminated food, or handled farm animals or raw dairy. It's also useful if initial fever workups haven't identified a clear cause. People with ongoing fever lasting more than a few days without an obvious reason are good candidates.

What symptoms indicate I may need this test?

Common signs include a fever that won't go away, headache, chills, muscle or joint aches, and sometimes a rash, especially after a tick or flea bite. Stomach cramps, diarrhea, or nausea after eating questionable food can also point to a need for this test. Fevers that recur or come and go over weeks may suggest an infection like brucellosis.

What does a rising antibody titer mean?

A rising or high antibody titer between an early and later blood sample usually means your body is actively fighting or has recently fought one of these infections. A 4-fold increase in titer level between the two samples is generally what confirms an active infection is present. A single high result without a follow-up comparison is less definitive and may need retesting to interpret properly.

What causes a false-negative result on this test?

False-negative results can happen if you're tested too early, before your body has had time to build up antibodies against the infection. A weakened immune system can also make it harder for your body to produce a detectable antibody response. This is why retesting a few weeks later with a second sample is often necessary for an accurate picture.

How often should I retest?

If your first test is inconclusive or negative but you're still having fever, a retest 2 to 4 weeks after the first sample is usually recommended to check for a rising antibody titer. This paired-sample approach is the standard way to confirm these types of infections. If your symptoms resolve and you feel better, retesting typically isn't needed unless new symptoms develop.

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.

Febrile Antibodies Panel - Fever Cause Blood Test

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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