Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles
FISH probe test for detecting chromosomal changes linked to cancer risk

FISH Genetic Probe Test for Chromosomal Abnormalities

FISH, Locus-specific Probe (x2)

  • Detect specific chromosomal genetic changes
  • Screen for cancer-related genetic markers
  • Monitor known chromosomal condition progress
$3934
LegitScript certified merchant
First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're being evaluated for a suspected genetic or chromosomal condition, including certain types of cancer or inherited disorders. It's often used to look for specific chromosomal changes, such as missing, extra, or rearranged genetic material, that can help explain a diagnosis or guide next steps. This test is typically ordered as a follow-up to other findings rather than as a first screening step.

What happens after I get my results?

Your results will show up in your account, with an explanation of what a normal versus abnormal finding looks like for the specific probes used. Depending on what's found, next steps might include repeat testing, additional genetic studies, or lifestyle and monitoring adjustments if a condition is confirmed. You can download a standard lab report from your account at any time, and if you test again in the future, you'll be able to track results over time using the trends feature.

What symptoms indicate I may need this test?

You might consider this test if you've had unusual results on other blood work, a family history of a genetic condition, or symptoms that suggest a chromosomal abnormality, such as unexplained developmental issues or a cancer diagnosis that needs further genetic classification. Some people are directed to this test after an abnormal biopsy or bone marrow result. If you're unsure whether this applies to you, reviewing your specific situation with a genetic counselor or lab specialist before ordering can help confirm it's the right test.

How can I naturally support healthy cell function?
While you can't change your chromosomes through lifestyle, supporting your overall cell health with a balanced diet, regular exercise, adequate sleep, and avoiding tobacco and excess alcohol can help your body function at its best. Reducing exposure to environmental toxins and radiation where possible is also a reasonable precaution. These habits won't reverse a chromosomal finding but can support your general health while you manage results.
When will I get my results?
Results for this FISH test are typically available within about 7 days of your sample being processed at the lab. Turnaround can vary slightly depending on the specific probes used and lab workload. 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 by people who have already had abnormal findings on other tests, a known family history of a specific genetic condition, or a cancer diagnosis that needs further chromosomal classification. It's also used in some cases to confirm or monitor certain blood cancers. Because it targets specific probes, it's usually chosen based on a particular condition being investigated rather than as a general screening tool.
What is FISH testing and why does it matter?
FISH stands for fluorescence in situ hybridization, a lab method that uses glow-in-the-dark tags to find specific pieces of genetic material on your chromosomes. It matters because it can detect small chromosomal changes that regular tests might miss, which can be important for confirming a diagnosis or figuring out the best path forward. This precision makes it a valuable tool for certain cancers and inherited conditions.
What does an abnormal FISH result mean?
An abnormal result means the specific chromosomal change the test was looking for was found, such as an extra copy, missing piece, or rearrangement of genetic material. What this means for you depends heavily on which probes were used and your personal health context, since the same change can mean different things in different situations. The report will explain what was detected so you can understand the finding clearly.
How often should I retest?
Retesting frequency depends entirely on why the test was ordered in the first place, for example, monitoring treatment response in a blood cancer might call for repeat testing every few months, while a one-time diagnostic question may not need retesting at all. There's no universal schedule for this test since it's so condition-specific. Following the guidance tied to your specific situation is the best approach.
What should I do if my results are abnormal?
If your results come back abnormal, start by carefully reading the explanation in your report to understand exactly what was found. Consider discussing the finding with a genetic counselor or specialist who can help translate the result into a clear picture of what it means for your health. If the finding relates to an urgent condition, seek medical care promptly rather than waiting.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] 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 [email protected], and we'll gladly help you. We've got your back and reply quickly.
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 [email protected]. 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 [email protected].
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 [email protected].

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 [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Chromosomal Rearrangement (FISH Probe Result) Negative
Demo results
Negative (No Rearrangement Detected) Positive (Rearrangement Detected)
Negative

What this means

A negative result means the specific chromosomal change the probes were looking for was not detected in your sample. This is generally a reassuring finding, though it doesn't rule out other genetic or chromosomal issues not covered by these particular probes. Your full report will explain exactly which regions were tested.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Find a lab near you

Search Quest Diagnostics and LabCorp locations available through Private MD Labs.

Find a lab

FISH Genetic Probe Test for Chromosomal Abnormalities

  • Detect specific chromosomal genetic changes
  • Screen for cancer-related genetic markers
  • Monitor known chromosomal condition progress
$3934
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
Ask Me Anything

Your 24/7 Personal Lab Guide

Hi. Tell me what you want to check. I'll find the right blood test for you.

Just now
For informational purposes only. Not medical advice.