What's this test for?

This test is ideal if you're pregnant or planning to become pregnant and want to know whether a cytomegalovirus (CMV) infection is new or happened in the past. It's also helpful if you've had a positive CMV antibody result and need more detail about timing, since a recent infection during pregnancy carries more risk than one that happened years ago. Many people with CMV have no symptoms at all, so this test is often used to clarify an unclear result rather than to investigate obvious signs of illness.

How should I prepare for this test?

How can I naturally support my immune system? Getting enough sleep, eating a balanced diet rich in fruits and vegetables, staying hydrated, and managing stress all help your immune system function well. Regular moderate exercise and avoiding smoking or excessive alcohol also support your body's ability to respond to viral infections like CMV. These habits won't change past infection status, but they support overall health during and after pregnancy.

What's included in this test?

This test measures the avidity, or binding strength, of your CMV IgG antibodies. Low avidity antibodies suggest a more recent infection, while high avidity antibodies suggest the infection happened months or years ago, which helps clarify timing when a standard CMV antibody test alone isn't enough.

What happens after I get my results?

Your results will be available in your account, with each value's normal range explained so you can see exactly what it means. If your avidity result suggests a recent infection, the report will explain what that could mean for pregnancy planning and when retesting might help confirm the timeline. You can download a standard lab report from your account at any time, and if you test again in the future, the trends feature lets you track your results over time.

When will I get my results?

Results for this test are typically available within about 7 days of your sample being collected at the lab. You'll receive a notification once your results are ready to view in your account. If your timeline is time-sensitive, such as during pregnancy planning, keep this window in mind when deciding when to test.

Who should consider this test?

This test is a good fit for anyone who is pregnant, trying to conceive, or was recently exposed to someone with CMV and wants clarity on infection timing. It's also useful if a previous CMV antibody test came back positive but it's unclear whether the infection is new or old. People with weakened immune systems who want more detail about a CMV exposure may also consider this test.

What symptoms indicate I may need this test?

Most people with CMV have mild or no symptoms, but some notice fatigue, sore throat, swollen glands, or a mild fever similar to a cold. If you're pregnant and were exposed to CMV or had these symptoms recently, this test can help determine if the infection is new. Since symptoms are often vague or absent, testing is usually driven by pregnancy planning or a prior positive antibody result rather than obvious signs.

What is CMV avidity and why does it matter?

CMV avidity testing looks at how strongly your antibodies bind to the virus, which naturally gets stronger over time after infection. Low avidity means your body encountered the virus more recently, usually within the last few months, while high avidity points to an infection from further in the past. This distinction matters most during pregnancy because a recent infection carries a higher chance of passing to the baby than one that happened long ago.

What does a low avidity result mean?

A low avidity result suggests you were infected with CMV relatively recently, generally within the past two to four months. During pregnancy, this timing matters because recent infections carry a higher risk of transmission to the baby than infections from before conception. If you get a low avidity result, retesting in a few weeks can help confirm the trend, since avidity naturally increases over time.

How often should I retest?

If your first result falls in a borderline or unclear range, retesting after two to three weeks can help show whether avidity is rising, which points to an older infection. Otherwise, this test is usually a one-time check tied to a specific pregnancy or exposure event rather than something you repeat routinely. If you're planning future pregnancies and had a recent infection, discuss timing with your care plan before conceiving again.

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.

CMV IgG Avidity Test - Pregnancy Infection Timing

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]