ALPHA-GALACTOSIDASE, SERUM

Test Documentation
Specimen Required
Draw blood in a red top tube. Centrifuge, separate and send 2.0 mL seurm (0.2 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
SST

Rejection Criteria
Gross hemolysis, gross lipemia, gross icterus

Methodology
Alpha-galactosidase is a lysosomal enzyme active at an acidic pH. The enzyme hydrolyzes artificial substrates such as 4-methylumbelliferyl and alpha-D galactopyranoside. The 4-methylumbelliferone liberated is measured by fluorometry.

Stability
Room temperature: Unacceptable; Refrigerated: 24 hours; Frozen: 14 days

Reference Range
0.074-0.457 U/L
Note: Results from this assay are not useful for carrier determination. Carriers usually have levels in the normal range.

Performed
Tuesday

Turnaround Time10-17 days
Test CodeAGAS
CPT-4 Code (s)
82657
LOINC Codes
Source:   31208-2  
Reason for referral:   42349-1  
Method:   49549-9  
Alpha-Galactosidase, S:   1813-5  
Interpretation:   59462-2  

Warde
Medical
Laboratory