What's this test for?

This test is ideal if you're experiencing prolonged fatigue, sore throat, swollen glands, or other symptoms that could point to a past or current Epstein-Barr virus infection, the virus that causes mononucleosis. It's also useful if you had mono in the past and want to confirm your immune system has built long-term protection. Many people carry EBV without knowing it, so this test helps clarify whether your symptoms are related to a new infection or an old one.

What's included in this test?

This test measures IgG antibodies against the Epstein-Barr virus nuclear antigen (EBNA), which is a marker your immune system produces well after the initial infection has passed. Because EBNA IgG typically doesn't show up until 3-4 months after infection and then stays with you for life, it's a reliable way to tell whether an EBV infection happened at some point in the past. This single marker helps distinguish old, resolved infections from more recent ones.

What happens after I get my results?

Your results will show up in your account with the normal range clearly explained next to your value, so you can see exactly where you stand. If your result suggests a recent or active infection, next steps usually include rest, hydration, and monitoring symptoms since most cases resolve on their own over a few weeks. You can download the standard lab report directly from your account at any time, and if you test again in the future, the trends feature lets you track your antibody status over time.

How can I naturally support my immune system after an EBV infection?

Getting consistent, quality sleep is one of the best things you can do, since your immune system does much of its recovery work at night. Eating a diet rich in fruits, vegetables, and lean protein gives your body the nutrients it needs to fight off lingering viral activity. Regular light exercise, stress management, and staying well hydrated also support your body's natural defenses. Avoid overexertion during recovery, as pushing too hard too soon can prolong fatigue.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. Once ready, they'll be posted directly to your secure online account, where you can view and download them at your convenience.

Who should consider this test?

This test is a good fit for anyone with symptoms of mono that won't go away, such as extreme fatigue, sore throat, or swollen lymph nodes lasting more than a few weeks. It's also worth considering if you've previously been diagnosed with mono and want to confirm your immune status, or if you're trying to understand whether current symptoms are linked to a new illness versus an old EBV infection.

What symptoms indicate I may need this test?

Common symptoms include persistent fatigue, sore throat, fever, swollen lymph nodes in the neck, and general body aches that last longer than a typical cold or flu. Some people also notice an enlarged spleen or liver, or unusual tiredness that doesn't improve with rest. If these symptoms have lingered for weeks, it may be worth checking your EBV antibody status.

What does a positive EBNA IgG result mean?

A positive EBNA IgG result means your immune system encountered EBV at some point in the past, usually several months to years ago, and has since developed long-term antibodies. This does not mean you have an active infection right now. Since most adults have been exposed to EBV at some point in their lives, a positive result on its own is common and generally not a cause for concern.

What does a negative EBNA IgG result mean?

A negative result usually means you haven't been infected with EBV in the past, or that if you were recently infected, your body hasn't had enough time yet to produce this particular antibody, since EBNA IgG can take 3-4 months to appear. If you have symptoms of a recent infection but a negative EBNA IgG, it may be worth checking again after a few months or looking at other EBV markers.

How often should I retest for EBV antibodies?

Because EBNA IgG stays detectable for life once it appears, there's usually no need for routine retesting once you have a confirmed positive result. If your first test was negative but you had symptoms suggestive of a recent infection, retesting after 3-4 months can help confirm whether an infection occurred. Otherwise, this is typically a one-time test for most people.

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.

EBV Antibody Test - Past Mono Infection 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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