Days Set Up
Varies
Analytic Time

8 - 15 days

Soft Order Code
NAGS/NAGR/NAGW

Test Updated:

Synonyms

Tay-Sachs
Tay-Sachs, G[M2] Gangliosidosis
Tay-Sachs
Tay-Sachs, G[M2] Gangliosidosis
Tay-Sachs
Tay-Sachs, G[M2] Gangliosidosis
Tay-Sachs
HEXOSAMINIDASE A, TOTAL, LEUK
HEXOSAMINIDASE A, TOTAL, SERUM
HEXOSAMINIDASE A,TOT,WBC/MOLE
Tay-Sachs Dx and Carrier Detec
NAGW TEXT
NAGW %A
NAGW TEXT
NAGW TOTAL
HEXO TEXT
HEXO TEXT
NAGS %A
NAGS TOTAL
NAGW %A
NAGW TEXT
NAGW TOTAL
TSD AMND'T
TSD FINAL
TSD INTERP
TSD RESULT
TSD SOURCE
TSD SPEC
PERCENT A
HEXOSAMINIDASE A/TOTAL, LEUKO
PERCENT A
PERCENT A
HEXOSAMINIDASE A/TOTAL, LEUKO
TSDP

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MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Heat Inactivation, Fluorometric, Automated

Test Usage

Preferred test to order for Tay-Sachs disease, carriers of Tay Sachs, Sandhoff's disease, and carriers of Sandhoff's.

Reference Range

HEXOSAMINIDASE TOTAL, LEUKOCYTES: <=15 yrs: >=20 nmol/min/mg, >=16 yrs: 16.4 - 36.2 nmol/min/mg; HEXOSAMINIDASE PERCENT A, LEUKOCYTES: <=15 yrs: 20 - 80% of total, >=16 yrs: 63 - 75% of total; HEXOSAMINIDASE TOTAL, SERUM: <=15 yrs: >=20 nmol/min/mL, >=16 yrs: 10.4 - 23.8 nmol/min/mL; HEXOSAMINIDASE PERCENT A, SERUM: <=15 yrs: 20 - 90% of total, >=16 yrs: 56 - 80% of total.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

MALES (serum): Collect specimen in a red top tube from a fasting patient. Centrifuge, aliquot serum into a plastic vial and freeze (do not refreeze thawed serum). FEMALES (leukocytes): Collect blood in 7 mL yellow top tube (ACD) solution A or B from a fasting patient. Refrigerate intact ACD tube (frozen ACD tube is unacceptable). ACD specimen must arrive within 48 hours of collection.

Red Top Tube
Normal Volume
Serum: 1 mL serum; Leukocytes: 7.0 mL ACD (solution A or B) whole blood
Minimum Volume
Serum: 0.5 mL serum; Leukocytes: 5.0 mL ACD (solution A or B) whole blood

Billing Information

CPT Code
83080 per specimen
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.