Myriad states the Prequel prenatal screen typically takes 7 to 10 days and the Foresight carrier screen takes about 14 days from when the lab receives your sample. Results go to your provider.
Few stretches of pregnancy feel as slow as the wait for genetic test results. The blood draw takes minutes, but the days that follow can drag on — especially when a patient portal reads “clinical review” without explaining what that means or how long it might take.
The honest answer about Myriad lab review depends on which test you took and how quickly your provider reviews the results. Myriad states the Prequel NIPT typically takes 7 to 10 days from the time the sample arrives at the lab, while the Foresight carrier screen takes about 14 days. These numbers represent lab processing time — once results are sent to your provider, the clinical review step adds its own variable delay.
What The Two Main Myriad Timelines Actually Say
Myriad offers two common prenatal tests, and each runs on a slightly different schedule once the sample reaches the lab.
The Prequel® Prenatal Screen (a non-invasive prenatal test that screens for chromosomal conditions) has a stated turnaround of 7 to 10 days after sample receipt. Myriad notes that this timeline comes with no increased risk to the pregnancy — it’s the standard processing window for this test.
The Foresight® Carrier Screen, which checks for over 200 recessive conditions, takes longer because it involves more extensive analysis. According to Myriad’s official FAQ, results are available approximately 14 calendar days after sample receipt. Because this panel looks at far more DNA, the extra week is typical for tests of this scope.
Why The “Clinical Review” Status Confuses So Many People
The status that causes the most worry isn’t actually a lab delay — it’s the handoff between Myriad and your provider. Understanding this step can make the wait feel less mysterious.
- What “clinical review” actually means: This status means the lab results are ready and have been sent to your ordering provider for review. It is a standard administrative step, not a sign that something is wrong.
- How long it usually takes: The clinical review step can take anywhere from a day to over a week, depending on how quickly your provider’s office reviews the report and whether they want to discuss it with you in person.
- Why it isn’t instant: Myriad delivers complex genetic reports. Your provider needs time to check the findings, consider them alongside your medical history, and plan how to share the information clearly with you.
- What you can do: If the status has been “clinical review” for longer than a few days, a direct call to your physician’s office is a reasonable next step. They can check their portal and give you an estimated timeline.
- What not to worry about: A long clinical review usually does not mean a problem with the sample or the results. It most often signals a busy office or a policy of delivering results only during scheduled appointments.
Knowing that the delay is often on the provider side rather than the lab side can shift your focus from refreshing a portal page to having a direct conversation with your clinic.
How Genetic Testing Turnaround Compares Across Labs
Myriad’s timelines are fairly standard for prenatal testing, but seeing them alongside other options provides helpful context. MedlinePlus puts the general genetic testing window at a few days to weeks — see its page on genetic test results timeline for a broader look at what influences turnaround times.
The table below compares Myriad’s stated timelines with other common testing scenarios so you can see where they fall on the spectrum.
| Test / Lab Type | Typical Turnaround Time | Notes |
|---|---|---|
| Myriad Prequel NIPT | 7 to 10 days | Starts after lab receives sample |
| Myriad Foresight Carrier Screen | ~14 days | More extensive gene panel |
| Invitae Diagnostic Panel | 10 to 21 days | Another major lab’s standard window |
| Unity Screen (NIPT) | ~1 to 2 weeks | Chromosomal results in ~7 days |
| General Single Gene / Panel | 2 to 6 weeks | Per National Ataxia Foundation |
| Large Exome / Genome Sequencing | Several weeks to months | Most complex type of genetic test |
As the table shows, Myriad’s stated timelines fall on the faster end for prenatal screening. The full wait for the patient, however, includes the clinical review step, which adds some variability depending on your provider’s workflow.
Steps to Take While You Wait for Myriad Lab Results
Waiting is the hardest part, but a few small actions can help you feel more in control while the process moves along.
- Confirm your sample arrived. Check with your provider’s office or Myriad’s tracking portal to make sure the blood sample was received by the lab. The timeline clock starts at receipt, not at the draw.
- Ask about their disclosure policy. Some clinics release results via a patient portal as soon as they review them. Others wait until a scheduled appointment. Knowing this upfront sets accurate expectations.
- Follow up after the standard window passes. If it’s been 10 days for a Prequel test or 14 days for a Foresight test and you haven’t heard anything, a polite call to your provider’s office is appropriate.
- Prepare questions for your results appointment. Write down what you want to know — residual risk, next steps, carrier status details — so that when results arrive, you make the most of the discussion.
- Check your insurance coverage. Most health plans cover genetic testing when ordered by a physician, but confirming Myriad is an in-network lab can prevent surprise bills.
These steps won’t speed up the lab itself, but they can reduce the passive anxiety of waiting by giving you a clearer picture of what’s happening at each stage.
Factors That Can Affect Your Myriad Results Timeline
While Myriad provides standard timelines, a few variables can shift the window in either direction. Sample quality matters — if the initial blood draw doesn’t contain enough fetal DNA or gets compromised in transit, the lab may need a redraw, which resets the clock. Busy periods at the lab, such as end-of-year volume, can also add a few days.
If your provider orders additional reflex testing or custom panels, the analysis may take slightly longer than the standard test. And as noted earlier, the clinical review step depends entirely on the provider’s workflow. Myriad’s own materials explain this directly, and their Foresight carrier screen FAQ is a useful reference for understanding what each status update means.
Rush services are another factor, though they are more common in diagnostic genetic testing than routine prenatal screening. Some labs offer expedited processing for an additional fee, but Myriad does not list a standard rush option for its prenatal tests on its public patient pages.
| Factor | How It Affects Timeline |
|---|---|
| Sample Quality | Poor sample may require a redraw, adding days or weeks |
| Provider Review Speed | Can add 1 day to over a week after results are ready |
| Lab Volume / Holidays | Standard processing may slow by a few days |
| Additional Testing Ordered | Reflex or custom panels extend lab analysis time |
The Bottom Line
The wait for Myriad genetic test results is typically 7 to 14 calendar days from the time the lab receives your sample, depending on whether you took the Prequel or Foresight screen. The longest stretch is often the clinical review step — which is simply your provider reviewing the report before sharing it with you.
If your portal status hasn’t changed past Myriad’s stated window, a direct call to your OB or midwife’s office is a reliable next step. They can check the report on their end and walk you through what the results mean for your pregnancy.