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Mutation-specific Sequencing, Whole Blood

CPT: 81403

Synonyms

  • Sequencing, Follow-up

Special Instructions

Indicate the specific gene and mutation to be analyzed on the test request form. Failure to indicate the gene and mutation will result in testing delays.


Expected Turnaround Time

13 - 21 days




Specimen Requirements


Specimen

Whole blood


Volume

Whole blood: 10 mL whole blood or 20 mL if ordering multiple tests


Container

Whole blood: Yellow-top (ACD-A) tube or lavender-top (EDTA) tube


Storage Instructions

Maintain specimen at room temperature.


Test Details


Use

This test is available for family testing when a mutation has been specifically identified through universal carrier screening (Inheritest® Gene-specific Sequencing, NGS [451910]; Inheritest® Ashkenazi Jewish Carrier Screening Panel, NGS [451920]; Inheritest® Comprehensive Panel, NGS [451950]; or Inheritest® Society-guided Screening Panel, NGS [451960]; or VistaSeq® Hereditary Cancer Panel [481220] or VistaSeq® Hereditary Cancer Panel Without BRCA [481240]); or through GeneSeq: Cardio testing. (See links to tests in Related Information).


Limitations

This analysis does not rule out the presence of disease-causing mutations in other regions of the gene(s) analyzed or in other genes, and it does not rule out the presence of large deletion or duplication mutations or complex rearrangements. False-positive results or false-negative results may occur for reasons that include: Genetic variants, technical handling, blood transfusions, bone marrow transplantation, mislabeling of samples or erroneous representation of family relationships.

This test was developed, and its performance characteristics determined, by Esoterix Genetic Laboratories LLC. It has not been cleared or approved by the US Food and Drug Administration (FDA).


Methodology

DNA is isolated and specific gene regions amplified by the polymerase chain reaction (PCR). Targeted mutations are detected by direct DNA sequencing using capillary gel electrophoresis and fluorescence detection.


For Providers

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