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Test ID BLOD1312 Beta-Galactosidase, Leukocytes

Useful For

Aiding in the diagnosis of GM1 gangliosidosis, Morquio B disease, and galactosialidosis

 

This test is not suitable for carrier detection.

Specimen Type

Whole Blood ACD


Shipping Instructions


For optimal isolation of leukocytes, it is recommended the specimen arrive refrigerated within 6 days of collection to be stabilized. Pre-analytical processing is performed Monday through Friday and Sunday. This test may be canceled if specimens are outside of stability when processing occurs. Collect and package specimens for arrival on days when processing is performed.



Necessary Information


Provide a reason for testing with each specimen.



Specimen Required


Container/Tube:

Preferred: Yellow top (ACD solution B)

Acceptable: Yellow top (ACD solution A)

Specimen Volume: 6 mL

Collection Instructions: Send specimen in original tube. Do not aliquot.


Reject Due To

Gross hemolysis Reject

Specimen Minimum Volume

5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole Blood ACD Refrigerated (preferred) 6 days YELLOW TOP/ACD
  Ambient  6 days YELLOW TOP/ACD

Day(s) Performed

Preanalytical processing: Monday through Friday, Sunday

Assay performed: Tuesday

Report Available

2 to 8 days

Method Name

Fluorometric

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82657

Reporting Name

Beta-Galactosidase, Leukocytes

Reference Values

≥1.56 nmol/min/mg

Test Classification

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

Forms

1. New York Clients-Informed consent is required. Document on the request form or electronic order that a copy is on file. The following documents are available:

-Informed Consent for Genetic Testing (T576)

-Informed Consent for Genetic Testing-Spanish (T826)

2. Biochemical Genetics Patient Information (T602)

3. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.

Secondary ID

8486

Testing Algorithm

For information see Lysosomal Disorders Diagnostic Algorithm, Part 1.

Sanford Laboratories - Enterprise Additional Information:

SANFORD LABORATORY INTERFACE BUILD INFORMATION

Result Code  Result Code Description 
16052 Beta-Galactosidase, Leukocytes
16086 Interpretation (BGA)
16087 Reviewed By