Alphabetical Test listing

GeneSeq® PLUS, HEXA-994

Tay-Sachs disease

This test is used for carrier and diagnostic testing for Tay-Sachs disease.


Technologies used do not detect germline mosaicism and do not rule out the presence of large chromosomal aberrations including rearrangements and gene fusions, or variants in regions or genes not included in this test, or possible inter/intragenic interactions between variants or repeat expansions.

Variant classification and/or interpretation may change over time if more information becomes available. False positive or false negative results may occur for reasons that include: rare genetic variants, sex chromosome abnormalities, pseudogene interference, blood transfusions, bone marrow transplantation, somatic or tissue-specific mosaicism, mislabeled samples or erroneous representation of family relationships.

This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.

Whole blood
8.5 mL
3 mL

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times to prevent clotting


Yellow ACD-A


Lavender (EDTA), 4mL


Ambient (preferred) - 14 days

Refrigerated - 30 days

  • Frozen speicmens
  • Hemolyzed specimens
  • QNS
LabCorp (482884); R-LC
14-21 days

Next Generation Sequencing

This test may require preauthorization from the insurance provider. Check the payer guidelines and, if needed, obtain the pre-authorization prior to sample collection.

Medical necessity

Hospital clients submitting a request for this assay on an outpatient with Medicare should complete and submit a Molecular Medical billing request form along with the sample.

  • Complete and submit the form to notify us of the need for Allina Health Laboratory to bill insurance for Molecular testing performed
  • All information requested is required in order for your request to be completed

Molecular Medicare billing request