What's this test for?

This test is ideal if you're pregnant and your provider has collected an amniotic fluid or chorionic villus sample that needs a fast look at chromosome numbers. It helps you get an early, rapid indication of possible chromosome count issues involving chromosomes X, Y, 13, 18, and 21, which are linked to conditions like Down syndrome. It's often used when you and your family want preliminary information sooner than a full chromosome study can provide, while you wait for more complete confirmatory testing.

What's included in this test?

This screen looks at the number of copies of five specific chromosomes rather than a full chromosome map. Focusing on these particular chromosomes matters because extra or missing copies of them are behind the most common chromosome-related conditions seen in pregnancy, so getting a quick count offers useful early information.

What happens after I get my results?

Your results will show up in your account with a clear explanation of what a normal chromosome count looks like for each of the chromosomes checked. Because this is a screening result, the practical next step is always to pair it with a full chromosome study or microarray test for confirmation before any decisions are made. You can download the standard lab report directly from your account at any time. If you order related follow-up testing later, you'll be able to track and compare results over time using the trends feature.

When will I get my results?

Results are typically ready within about 7 days of your sample being received at the lab. This turnaround is faster than a traditional chromosome study, which is one reason this screen is often used to give you preliminary information sooner. Keep in mind you'll still want a full chromosome study to confirm anything this screen flags.

Who should consider this test?

This screen is generally considered when you're pregnant and a prenatal sample (amniotic fluid or chorionic villus tissue) has already been collected for genetic evaluation. It's especially relevant if you want faster preliminary information while a full chromosome study is still in progress. Anyone with a personal or family history that raises concern about chromosome-related conditions may also find this an informative early step.

What symptoms indicate I may need this test?

This isn't a symptom-based test for you as the parent — it's about checking the pregnancy sample itself, not physical symptoms you'd feel. It's typically considered based on factors like maternal age, screening blood test results, ultrasound findings, or family history rather than any symptoms. If any of those factors apply to your pregnancy, this screen may be a helpful early step.

What is a chromosome screening test and why does it matter?

A chromosome screening test counts how many copies of certain chromosomes are present in a sample, since having too many or too few copies can affect development. This particular screen checks chromosomes X, Y, 13, 18, and 21 because extra or missing copies of these are linked to well-known conditions. Catching this information early gives you and your family more time to understand next steps and plan for additional testing.

What does an abnormal chromosome count mean on this screen?

An abnormal count means the sample showed more or fewer copies of a chromosome than expected, which can point toward a chromosome-related condition. Because this is only a screening result, it should never be treated as a final answer on its own. The practical next step is always a full chromosome study or microarray test to confirm or rule out the finding.

What causes an abnormal result on this screen?

Abnormal counts usually happen because of a natural error in how chromosomes divide during egg or sperm formation, which becomes more common as maternal age increases. It isn't caused by anything you did during pregnancy. Confirmatory testing is the only way to understand the specific cause and what it means for your pregnancy.

What should I do if my results are abnormal?

If your screen shows an abnormal count, the most important next step is to pursue the full chromosome study or microarray test for confirmation, since screening results alone should never guide major decisions. In the meantime, keep your other prenatal appointments and follow-up testing on schedule. Having your confirmatory results ready will give you and your family clearer, more complete information to work from.

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.

FISH Prenatal Screen - Rapid Chromosome 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]

FISH Prenatal Chromosome Screening Test