What's this test for?

This test is ideal if you're being evaluated for a specific genetic condition or a cancer that involves changes to a particular chromosome. It uses a targeted probe to look closely at one chromosome to spot abnormalities that regular blood tests can't detect. It's often used to help clarify a diagnosis or track a condition already identified through other testing.

How should I prepare for this test?

How can I naturally support healthy cell function while awaiting genetic testing? While this test itself doesn't require lifestyle changes to prepare, supporting your body with a balanced diet, adequate sleep, and stress management can help your overall health while you go through the testing process. Staying hydrated also makes blood draws easier and more comfortable. See the pre-collection instructions on your order confirmation for any sample-specific requirements.

What's included in this test?

This test uses a single fluorescent probe designed to target one specific chromosome or chromosomal region. It matters because certain chromosome changes, like extra copies, missing pieces, or rearrangements, are linked to genetic conditions and certain cancers. Testing a specific chromosome region gives a focused answer for the condition already suspected.

What happens after I get my results?

Your results will show up in your online account along with an explanation of what a normal versus abnormal finding looks like for this specific probe. Because this is a specialized genetic test, next steps usually depend on the exact finding, so the report will outline what the result pattern typically means. You can download a standard lab report from your account at any time, and if you retest in the future, you can track changes over time using the trends feature.

When will I get my results?

Results for this specialized chromosome test are typically ready within about 7 days of your sample being received at the lab. This turnaround reflects the detailed lab work needed to analyze the chromosome probe under a microscope. You'll receive a notification as soon as your results are posted to your account.

Who should consider this test?

This test is a good fit for people who have a family history of a specific genetic condition, have been told a chromosome abnormality runs in their family, or are following up on findings from another test or scan. It's also used for people already diagnosed with certain cancers to check for chromosome changes that can affect treatment planning. If a specific probe has been recommended based on your situation, this is the targeted test for that need.

What symptoms indicate I may need this test?

Because this test targets a specific chromosome, it's usually recommended based on family history, a prior abnormal test result, or symptoms tied to a known genetic syndrome rather than general symptoms alone. Signs like developmental delays, unusual growth patterns, unexplained bruising or bleeding, or a cancer diagnosis with an unclear subtype are common reasons this test gets ordered. If you've already been told you need a specific chromosome probe, this test lets you get it done directly.

What is chromosome analysis and why does it matter?

Chromosomes are the structures inside your cells that carry your genetic information, and changes to their number or structure can cause health conditions or affect how a cancer behaves. This test, called FISH (fluorescence in situ hybridization), uses a glowing probe that sticks to one specific chromosome so lab technicians can see it clearly under a microscope. It matters because it can confirm a suspected genetic condition or help guide next steps for cancer care with precision testing.

How often should I retest?

Most people only need this test once to confirm a diagnosis, since chromosome patterns from birth generally don't change over time. However, if you're monitoring a cancer for treatment response, retesting may be recommended periodically to check whether the chromosome abnormality is still present or has changed. Your results report will note if repeat testing makes sense for your specific situation.

What should I do if my results are abnormal?

If your result shows a chromosome abnormality, the report will explain what that specific finding typically means. Because these results can be complex, it's a good idea to bring your report to any follow-up appointments related to your condition so it can be reviewed alongside your medical history. If you notice sudden or severe symptoms, seek medical care right away.

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 Chromosome Probe Test - Genetic & Cancer Screening

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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