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Test Code G6SW N-Acetylgalactosamine-6-Sulfatase, Leukocytes

Useful For

 Assisting in the diagnosis of Morquio A disease

Reporting Name

N-Acetylgalactosamine 6 Slft, WBC

Specimen Type

Whole Blood ACD


Specimen Required


For optimal isolation of leukocytes, it is recommended the specimen arrive within 96 hours of draw to be stabilized. Draw specimen Monday through Thursday only and not the day before a holiday. Specimen should be drawn and packaged as close to shipping time as possible.

 

Container/Tube:

Preferred: Yellow top (ACD solution B)

Acceptable: Yellow top (ACD solution A)

Specimen Volume: 6 mL

Collection Instructions: Do not transfer blood to other containers.

Forms: New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (T576) is available in Special Instructions.


Specimen Minimum Volume

5 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood ACD Refrigerated (preferred) 7 days
  Ambient  7 days

Reference Values

≥92 nmol/17 hour/mg protein

Day(s) and Time(s) Performed

Varies

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

82657

LOINC Code Information

Test ID Test Order Name Order LOINC Value
G6SW N-Acetylgalactosamine 6 Slft, WBC In Process

 

Result ID Test Result Name Result LOINC Value
62409 N-Acetylgalactosamine 6 Slft, WBC In Process
35778 Interpretation (G6SW) 59462-2
35777 Reviewed By No LOINC Needed

Method Name

Fluorometric