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GTR Home > Tests > QNatal Advanced

Overview

Test order codeHelp: 92777

Test name

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QNatal Advanced (prenatal cfDNA screening)

Purpose of the test

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This is a clinical test intended for Help: Screening

Condition

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How to order

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10 ml whole blood collected in a Streck cell-free (black/tan tiger-top) tube ONLY. DO NOT DRAW before 10 weeks gestation
Order URL Help: https://testdirectory.questdiagnostics.com/test/home

Specimen source

Peripheral (whole) blood

Methodology

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Molecular Genetics
CSequence analysis of the entire coding region
Next-Generation (NGS)/Massively parallel sequencing (MPS)

Summary of what is tested

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Clinical utility

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Not provided

Clinical validity

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Not provided

Testing strategy

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https://testdirectory.questdiagnostics.com 000 10 ml whole blood collected in a Streck cell-free (black/tan tiger-top) tube ONLY. DO NOT DRAW before 10 weeks gestation

Practice guidelines

  • NSGC, 2021
    National Society of Genetic Counselors Position Statement: Prenatal Cell-Free DNA Screening
  • ACMG ACT, 2021
    American College of Medical Genetics and Genomics Noninvasive Prenatal Screening via Cell-Free DNA ACT Sheet, Trisomy 21/Down syndrome: Positive Cell Free DNA Screen, 2021

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.