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Genetic test for atrial fibrillation and stroke risk assessment

Cardio IQ 4q25 Atrial Fibrillation Risk Gene Test

Cardio IQ® 4q25-AF Risk Genotype

  • Screen for irregular heartbeat risk
  • Assess inherited stroke risk factors
  • Detect genetic heart rhythm markers
$1750
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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 concerned about your risk for atrial fibrillation (an irregular heartbeat) or cardioembolic stroke, especially if these conditions run in your family. It looks at a specific spot in your DNA linked to a higher chance of developing these heart rhythm problems. It's a good option if you want to understand your genetic risk before symptoms ever appear.

What's included in this test?

This test looks at a single genetic marker near the 4q25 region of your DNA that has been closely tied to atrial fibrillation risk. It matters because carrying certain versions of this marker can raise your chances of developing an irregular heartbeat and, in turn, increase stroke risk — information that can help you take earlier, more informed steps for your heart health.

What happens after I get my results?

Your results will show up in your account along with an explanation of what your genotype result means. Depending on what's found, next steps might include lifestyle changes like managing blood pressure, cutting back on alcohol, staying active, or simply being more aware of irregular heartbeat symptoms so you can act quickly if they show up. You can download the full lab report from your account at any time, and since this is a one-time genetic result, there's no need to retest it — though you can keep it saved and track any related heart health tests over time using the trends feature.

Who should consider this test?
This test is a good fit if you have a family history of atrial fibrillation or stroke, or if you've had unexplained heart palpitations and want more insight into your genetic risk. It's also useful for people who want a fuller picture of their cardiovascular risk alongside other heart health screenings. Anyone proactively planning their long-term heart health may find this genetic insight valuable.
When will I get my results?
Results are typically ready within about 7 days of your sample being processed at the lab. Once ready, you'll be able to view and download them directly from your account. You'll get a notification as soon as they're available so you're not left checking in repeatedly.
What symptoms indicate I may need this test?
Symptoms like a racing or fluttering heartbeat, dizziness, shortness of breath, or fatigue can sometimes point to atrial fibrillation, especially if they come and go unexpectedly. If you've experienced any of these along with a family history of heart rhythm issues or stroke, this test can help clarify whether genetics are playing a role. Even without symptoms, a strong family history alone can be a good reason to check your risk.
How can I naturally support heart rhythm health?
Simple habits can go a long way in supporting a healthy heart rhythm — this includes limiting alcohol and caffeine, managing stress, staying active with regular moderate exercise, and getting good quality sleep. Keeping blood pressure and weight in a healthy range also reduces strain on your heart. Eating a diet rich in fruits, vegetables, and omega-3 fats (like fish) is another simple way to support long-term heart health.
What is atrial fibrillation and why does it matter?
Atrial fibrillation, often called AFib, is a condition where the heart beats irregularly instead of in a steady rhythm. It matters because this irregular beating can cause blood to pool and form clots, which raises the risk of stroke if a clot travels to the brain. Catching a higher genetic risk early gives you the chance to make heart-healthy changes before any problems develop.
What causes an increased genetic risk for atrial fibrillation?
Certain inherited variations in DNA, like the one measured in this test near the 4q25 region, can make the heart's electrical signaling more prone to irregularities. This genetic risk is separate from lifestyle factors like high blood pressure or thyroid issues, though those can add to the overall risk. Having the higher-risk version of this marker doesn't mean you will definitely develop AFib — it simply means your baseline risk is higher than average.
What should I do if my results show increased risk?
If your results show a higher genetic risk, it's a good idea to pay closer attention to any new heart rhythm symptoms like palpitations or dizziness and to work on lowering the lifestyle factors within your control, such as alcohol intake, stress, and blood pressure. Regular check-ins on your heart health, including blood pressure monitoring, can help you stay ahead of any changes. If you ever experience sudden chest pain, severe shortness of breath, or fainting, seek medical care right away.
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
4q25 Atrial Fibrillation Risk Genotype Heterozygous (Risk Allele Present)
Demo results
No Risk Allele Risk Allele Present
Heterozygous (Risk Allele Present)

What this means

This result shows you carry one copy of the genetic variant near 4q25 linked to increased atrial fibrillation risk. This means your baseline risk of developing an irregular heartbeat is somewhat higher than someone without this variant, though it doesn't guarantee you'll develop the condition. Lifestyle habits still play a big role in your overall heart rhythm health.

* 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.

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Cardio IQ 4q25 Atrial Fibrillation Risk Gene Test

  • Screen for irregular heartbeat risk
  • Assess inherited stroke risk factors
  • Detect genetic heart rhythm markers
$1750
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
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For informational purposes only. Not medical advice.