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Test ID: NAGW    
Hexosaminidase A and Total Hexosaminidase, Leukocytes

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Useful For Suggests clinical disorders or settings where the test may be helpful

Carrier detection and diagnosis of Tay-Sachs disease


Carrier detection and diagnosis of Sandhoff disease (testing option-this is not the recommended test)

Genetics Test Information Provides information that may help with selection of the correct test or proper submission of the test request

Enzyme testing only. See NAGR / Hexosaminidase A and Total, Leukocytes/Molecular Reflex for comprehensive diagnostic and carrier testing.

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

See Tay-Sachs Disease Carrier Testing Protocol in Special Instructions.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

Heat Inactivation, Fluorometric, Semiautomated

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Hexosaminidase A and Total, WBC

Aliases Lists additional common names for a test, as an aid in searching

GM2 Gangliosidosis
Hex A Deficiency
Hexosaminidase A
Hexosaminidase A and Total
Hexosaminidase Total (WBC)
Sandhoff Carrier Screening
Sandhoff Carrier Testing
Sandhoff Disease
Sandhoff Disease Carrier Screening
Tay Sachs Carrier Screening
Tay Sachs Carrier Testing
Tay Sachs Disease
Tay Sachs Disease Carrier Screening
Tay-Sachs Carrier Screening
Tay-Sachs Carrier Testing
Tay-Sachs Disease (TSD)
TSD (Tay-Sachs Disease)
Hexosaminidase A and B