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Hexosaminidase/Tay-Sachs
MessageMayo Clinic test code: NAGW
Test Code
Z1638
Alias/See Also
LAB3000451
CPT Codes
83080 X2
Includes
Hexosaminidase A and Total Hexosaminidase, Leukocytes
Preferred Specimen
6 mL whole blood collected in Yellow top (ACD solution B)
Minimum Volume
5 mL
Other Acceptable Specimens
6 mL whole blood collected in Yellow top (ACD solution A)
Instructions
Send specimen in original tube. Do not aliquot.
Transport Temperature
Refrigerated
Specimen Stability
Ambient: 6 days
Refrigerated: 6 days
Refrigerated: 6 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Heat Inactivation, Fluorometric, Semi-Automated
Setup Schedule
Preanalytical processing: Monday through Saturday
Assay Performed: Friday
Assay Performed: Friday
Report Available
4 to 8 days
Reference Range
See Patient Report for Reference Range and/or Interpretation of Results
Clinical Significance
-This test can be used for diagnosis and carrier testing for Tay-Sachs disease or Sandhoff disease.
-Results for hexosaminidase A and total enzyme analysis are reported with recommendations for additional testing when appropriate. All follow-up testing must be ordered separately on new specimens.
-This test is appropriate for males and pregnant or nonpregnant females.
-Results for hexosaminidase A and total enzyme analysis are reported with recommendations for additional testing when appropriate. All follow-up testing must be ordered separately on new specimens.
-This test is appropriate for males and pregnant or nonpregnant females.
Performing Laboratory
Mayo Clinic Laboratories
