Genetic Testing Excellence

Quest Diagnostics offers a comprehensive array of genetic testing and related services. We deliver:

Call 1.866.GENE.INFO (1.866.436.3463) or email us today for information about any of the solutions above. If calling from outside the U.S. call (678) 406-1198.


Advanced technologies

Your patients can have complicated needs. They not only turn to you for the guidance and understanding to face challenges or make difficult decisions, but they also depend on you for accurate results.

And you can depend on us. We’re here to support the important work you do every day. Our advanced genetic testing technologies extend your diagnostic capabilities and technological reach through:

  • High-resolution chromosomal microarrays
  • Advanced sequencing using next-generation platforms
  • Cutting-edge automated platforms

You can trust our experience. We’ve been innovators in genetic testing since the 1970s, and we offer a comprehensive menu of over 700 genetic tests. We have experience with complex and rare cases, covering a broad spectrum of genetics areas.

QNatal® Advanced: noninvasive prenatal screening with excellent accuracy

You can also continue to rely on Quest for the latest tests and technologies, such as our state-of-the-art QNatal® Advanced noninvasive prenatal screening, developed and performed by Quest Diagnostics. QNatal® Advanced offers high-risk obstetric patients a noninvasive way to determine the risk of birth defects through a blood test. By measuring traces of fetal DNA found in maternal blood, the test can pinpoint fetal aneuploidies with excellent accuracy across all common fetal chromosomal abnormalities. QNatal® Advanced can be performed from as early as 10 weeks gestation, and it can also determine the sex of the fetus. 

Solid Tumor Core Panel from Quest Diagnostics

Just as no 2 patients are alike, no 2 cancers are alike. Despite advances in cancer treatment, some patients still face a lack of options, especially when it comes to rare, aggressive, or late-stage disease.

Solid Tumor Core Panel from Quest Diagnostics is here to help change that. By combining state-of-the-art solid tumor genetic sequencing with powerful data analysis, Solid Tumor Core Panel can quickly uncover a wide range of highly personalized information–including obscure references that may have been previously unidentified.

A Quest Diagnostics medical director reviews and confirms the results. Clinicians receive a report that provides therapy and clinical trial information that has been personalized to your patient, including mutations and therapeutic associations that have been graded through clearly-defined levels of evidence.

An extensive test menu, with options that match specific patient needs

Our menu of over 700 genetic tests is one of the most comprehensive in the industry today. From maternal serum screening to late-onset disease testing, our innovative test menu gives you access to diagnostic capabilities across your patients’ lifetimes, including:

  • Extensive prenatal and postnatal genetic testing
  • Testing for conditions such as autism and developmental delay
  • Comprehensive cystic fibrosis panel
  • Cancer diagnostics, including full gene sequencing, as well as tests for genetic mutations associated with colorectal and gynecologic cancers and leukemia
  • Pharmacogenetic tests for a variety of conditions to help determine appropriate treatment for patients

Our test offerings are aligned with professional society and national clinical guidelines to help you practice clinically responsible medicine.

See our full range of genetic tests

Support from expert medical specialists and genetic counselors dedicated to assisting you and your patients—including patients with rare conditions

Male doctor talking to female patient
Our Quest Diagnostics Genetics Center can help you determine the appropriate plan of care.
You can get answers, assistance, and advice from board-certified geneticists, medical directors, and genetic counselors by
calling 1.866.GENE.INFO (1.866.436.3463).

Our highly trained geneticists and genetic counselors can help support you as you care for your patients by providing:

  • Clinical consultations and test information
  • Expert interpretive assistance on test results
  • Guidance to optimize test selection and planning
  • Assistance with collection and review of patient medical and family information

Our experts provide clinical support services for prenatal genetics as well as molecular genetics, biochemical genetics, cytogenetics, and oncology-related genetics.