What's this test for?

This test is ideal if you're experiencing symptoms like severe headache, high fever, neck stiffness, confusion, or muscle weakness that suggest a possible brain or spinal cord infection. It looks for antibodies your body makes in response to West Nile virus, specifically in your cerebrospinal fluid (CSF). This is typically used when there's concern about a serious central nervous system infection rather than mild, flu-like illness.

How should I prepare for this test?

How can I naturally support my immune system while recovering from a viral infection? Getting plenty of rest, staying well hydrated, and eating nutrient-dense foods like fruits, vegetables, and lean protein can help your body fight off infection. Avoiding alcohol and getting quality sleep also supports immune recovery. These steps are supportive only and don't replace urgent care if symptoms are severe.

What's included in this test?

This test measures two types of antibodies your immune system makes against West Nile virus in your cerebrospinal fluid. IgM antibodies typically show up early and suggest a recent or current infection, while IgG antibodies usually appear later and can indicate past exposure. Looking at both together helps show whether an infection is new, ongoing, or from the past.

What happens after I get my results?

Your results will show up in your account with each value's normal range clearly explained, so you can see whether IgG and IgM antibodies were found and what that means. If results suggest a recent or active infection, seek medical care right away since this can involve the brain or spinal cord and needs prompt attention. A downloadable standard lab report is available in your account, and you can use the trends feature to track any future related testing over time.

When will I get my results?

Results for this test are typically available within about 7 days after your sample is collected. Because this test involves cerebrospinal fluid analysis, processing can take a bit longer than standard blood work. You'll be notified as soon as your results are ready to view in your account.

Who should consider this test?

This test is generally considered for people with signs of a serious neurological infection, such as sudden high fever with confusion, stiff neck, severe headache, or muscle weakness, especially after potential mosquito exposure. It's also relevant if you live in or have traveled to an area with recent West Nile virus activity. This is not a routine screening test for people without symptoms.

What symptoms indicate I may need this test?

Symptoms that may point to a need for this test include high fever, severe headache, stiff neck, disorientation, tremors, or muscle weakness, particularly if they came on suddenly. Some people also experience seizures or changes in alertness in more serious cases. If you notice any of these symptoms, especially after a mosquito bite, it's important to seek medical care quickly since this can be a medical emergency.

What is West Nile virus and why does it matter?

West Nile virus is a virus spread mainly through mosquito bites that can sometimes affect the brain and spinal cord, causing serious illness. Most people who get infected have no symptoms or mild flu-like signs, but a small number develop severe neurological complications. Testing matters because catching a serious infection early can help guide faster, more appropriate care.

What does a positive IgM result mean?

A positive IgM result usually suggests a recent or active West Nile virus infection, since these antibodies appear early in the course of illness. This is often a sign that your immune system is currently responding to the virus. Because this can indicate a serious infection affecting the nervous system, a positive result should prompt immediate medical attention.

How often should I retest?

This test isn't typically used for routine or repeat monitoring — it's usually ordered once when there's a specific concern about an active neurological infection. If your symptoms change or worsen after initial testing, retesting or additional evaluation may be recommended. Otherwise, this isn't a test people repeat on a regular schedule.

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.

West Nile Virus Antibody Test - CSF 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

[email protected]

West Nile Virus Antibody Test (IgG, IgM) - CSF

West Nile Virus Antibodies (IgG, IgM), CSF

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?

How should I prepare for this test?

What's included in this test?

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West Nile Virus Antibody Test (IgG, IgM) - CSF

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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