What's this test for?

This test is ideal if you're experiencing muscle weakness, especially in your hands and arms, that seems to be getting worse over time without affecting your ability to feel sensations like touch or pain. It helps identify a specific type of nerve condition called multifocal motor neuropathy, which can be mistaken for other muscle or nerve disorders. If you've noticed twitching, cramping, or progressive weakness on one side of your body more than the other, this test can help clarify what's going on.

What's included in this test?

This test measures a single, specific antibody in your blood that is linked to a rare autoimmune nerve condition. Checking for this antibody matters because it helps distinguish this particular type of nerve weakness from other conditions that can look similar on the surface but require completely different management approaches.

What happens after I get my results?

Your results will show up in your account with a clear explanation of what a normal versus abnormal antibody level looks like for this test. If your result comes back positive, the report will explain what that may indicate, and next steps often involve additional nerve-focused testing or monitoring symptoms over time. You can download a standard lab report straight from your account whenever you need it. If you retest in the future, the trends feature lets you track how your antibody levels change over time.

How can I naturally support nerve health?

While this test looks for an antibody linked to an autoimmune nerve issue that isn't caused by lifestyle, there are still things you can do to support your nervous system overall. Eating a diet rich in B vitamins (found in eggs, leafy greens, and whole grains), staying physically active within your comfort level, and managing stress through good sleep can all help support nerve function. Avoiding alcohol and smoking is also known to protect nerve health over time. These steps won't cure an autoimmune condition, but they support your body's overall resilience.

When will I get my results?

Results for this test are typically ready within about 7 days of your blood draw. You'll receive a notification once they're posted to your account, where you can view the details and download your report at any time.

Who should consider this test?

This test is most relevant for people who have unexplained, progressive weakness in their limbs, particularly weakness that doesn't come with numbness or pain. It's also useful for those who've had inconclusive results from other nerve or muscle tests and want to explore a more specific possible cause. People with a family history of autoimmune or nerve conditions may also want to consider it as part of a broader workup.

What symptoms indicate I may need this test?

Common symptoms include gradual muscle weakness (often starting in the hands or forearms), muscle twitching, cramping, and difficulty with fine motor tasks like buttoning a shirt or turning a key. Unlike many other nerve conditions, this type typically does not cause numbness or loss of sensation. If weakness is asymmetric — worse on one side than the other — and slowly progressive, that's a notable sign worth investigating.

What does a positive result mean?

A positive result means the specific antibody was detected in your blood, which is associated with multifocal motor neuropathy, a condition that affects the nerves controlling your muscles. This doesn't automatically confirm a diagnosis on its own, since results are usually considered alongside your symptoms and other testing. If your result is positive, it's a good idea to seek further nerve-specific testing to get a fuller picture of what's happening.

What causes this antibody to be present?

This antibody is typically produced when the immune system mistakenly targets a component of your own nerve cells called a ganglioside. In some cases, this immune response is also connected to a blood condition called IgM monoclonal gammopathy. The exact trigger for why the immune system reacts this way isn't fully understood, but it's considered an autoimmune process rather than something caused by diet or lifestyle.

How often should I retest?

If your first result is negative but you're still experiencing symptoms, retesting after your symptoms progress or change can help capture a clearer picture. If your result is positive, retesting periodically can help track how antibody levels change alongside your symptoms over time. There isn't a strict universal retest interval for this specific antibody, so timing should be guided by how your symptoms evolve.

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.

Ganglioside GD1a Antibody Test - Nerve Weakness 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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