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Test ID GALCR Galactocerebrosidase Reflex, Leukocytes


Specimen Required


Only orderable as a reflex. For more information see LSD6W / Lysosomal Storage Disorders, Six-Enzyme Panel, Leukocytes.


Useful For

Diagnosis of Krabbe disease as a confirmatory reflex of the six-enzyme panel

 

Follow-up testing for evaluation of an abnormal newborn screening result for Krabbe disease

 

This test is not recommended for carrier detection because of the wide range of enzymatic activities observed in carriers and noncarriers.

Method Name

Only orderable as a reflex. For more information see LSD6W / Lysosomal Storage Disorders, Six-Enzyme Panel, Leukocytes.

 

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Reporting Name

Galactocerebrosidase Reflex, WBC

Specimen Type

Whole Blood ACD

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole Blood ACD Refrigerated (preferred) 4 days
  Ambient  72 hours

Reference Values

Only orderable as a reflex. For more information see LSD6W / Lysosomal Storage Disorders, Six-Enzyme Panel, Leukocytes.

 

≥0.30 nmol/hour/mg protein

Day(s) and Time(s) Performed

Specimens are processed Monday through Sunday.

Assay is performed: Varies

Performing Laboratory

Mayo Clinic 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

82542

NY State Approved

Yes