What's this test for?

This test is ideal if you or your child has been noted by a clinician to have features suggestive of Miller-Dieker syndrome, such as distinctive facial features, seizures, or developmental delay. It looks for a missing piece of genetic material on chromosome 17 that is linked to this condition. This test is typically ordered when there's already clinical suspicion based on physical exam findings or symptoms, often to help confirm a diagnosis and guide next steps for care.

What's included in this test?

This test uses a specialized technique called FISH to look closely at a specific region of chromosome 17 for a missing segment. It focuses on the loss of genetic material that affects a particular gene tied to brain development, since that loss is what's known to cause the features seen in this condition. Testing this specific region matters because it can confirm a clinical diagnosis and rule in or out this particular genetic cause.

What happens after I get my results?

Your results will be available in your account, with an explanation of what the finding means and how it compares to a normal result. Because this is a serious genetic finding, next steps often include additional testing such as chromosomal microarray or gene sequencing if this test doesn't detect an abnormality but symptoms persist. You can download the full lab report from your account at any time, and if you retest in the future you'll be able to track results over time using the trends feature. Given the nature of this condition, any positive or unclear result should prompt a conversation with a genetic counseling resource as soon as possible.

What symptoms indicate I may need this test?

Signs that may point to Miller-Dieker syndrome include distinctive facial features, seizures that start early in life, significant developmental delay, and low muscle tone in an infant. Some individuals also have feeding difficulties, small head size, or structural differences in the heart or kidneys. If a child is showing several of these signs together, especially seizures combined with developmental delay, this test can help clarify whether a chromosome 17 deletion is the underlying cause.

Who should consider this test?

This test is generally considered for infants or children who show a combination of distinctive facial features, seizures, and significant developmental delay that raises concern for Miller-Dieker syndrome. It's also relevant for families who already have a diagnosed case and want to understand recurrence risk for future pregnancies. Because this is a specialized genetic test, it's usually pursued after initial clinical evaluation has raised specific concerns rather than as a general screening tool.

When will I get my results?

Results for this test are typically ready within about 7 days of your sample being received at the lab. This timeframe allows for the detailed chromosome analysis required to detect the microdeletion. You'll be notified as soon as your results are posted to your account so you don't need to check repeatedly.

What is Miller-Dieker syndrome and why does it matter?

Miller-Dieker syndrome is a rare genetic condition that affects how the brain develops, leading to a smooth brain surface instead of the normal folded pattern. This can cause seizures, developmental delay, and intellectual disability, along with distinctive facial features and sometimes heart or kidney differences. Understanding this diagnosis matters because it helps guide medical planning, connects families with the right resources and support, and clarifies risk for future pregnancies.

What does a positive result mean?

A positive result means the specific piece of chromosome 17 that's commonly missing in Miller-Dieker syndrome was detected as absent in the sample tested. This finding, together with clinical features, is generally used to confirm the diagnosis. Because this condition is serious and prognosis can be guarded, a positive finding should be discussed with genetic counseling resources to understand what it means for care planning and family planning.

What should I do if my results are unclear or don't match my symptoms?

If this test doesn't detect a deletion but symptoms are still strongly suggestive of Miller-Dieker syndrome, it doesn't rule out the condition completely. Some cases are caused by smaller genetic changes in the same gene that FISH testing can't detect, so follow-up tests like chromosomal microarray or gene sequencing may be recommended. It's important to interpret this result together with the full clinical picture, physical exam findings, and family history rather than in isolation.

How often should I retest?

This is a one-time diagnostic test rather than something you'd repeat routinely, since the genetic finding it looks for doesn't change over time. Retesting might be considered if a first test was inconclusive and a different sample type or method is recommended. For future pregnancies in a family with a known case, separate prenatal testing options would typically be discussed rather than repeating this exact 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! 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.

Miller-Dieker Syndrome FISH Test - Genetic Diagnosis

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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