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Laboratory:

Clinical Biochemistry (METABOLIC)

Test Name:

HEXOSAMINIDASE - (S)

Test Code: NAGS

Clinical Information:

Test Indications: This test is used for the carrier detection and diagnosis of Tay-Sachs or Sandhoff disease.

This test IS NOT USEFUL FOR PREGNANT FEMALES or those treated with hormonal contraception. See HEXOSAMINIDASE A (WBC).

GM2 activator deficiency is not detected with this assay.

Method: Heat inactivation, Fluorometric

Test performed: Mayo Clinic Laboratories

For questions/information: Call Metabolic Lab at 204-787-4530 and ask for the Biochemical Geneticist.

Collection Devices:

Preferred Device:	1 - Serum Separator (SST) Tube(s) - Full Tube Collection Serum Separator (SST) Tube(s) - Full Tube Collection Manufacturer: Becton Dickinson Catalogue #: 367986
Alternate Device:	1 - Serum Tube(s), NO GEL - Full Tube Collection Serum Tube(s), NO GEL - Full Tube Collection Manufacturer: Becton Dickinson Catalogue #: 366430

Specimen Required:

Serum: 1.0 mL

Pediatric Serum: 0.5 mL

Aliquot store and keep serum frozen

Stability: see below

Referral:

Send the requisition (or a clear copy) with the sample.

Aliquot, store and ship serum frozen at Metabolic Lab (HSC).

Stability: see below.

Requisition:

_SH Biochemical Genetics Laboratory Requisition (R250-10-69)

Reference Values:

Provided with report

Availability:

Within 3 Weeks