Alpha-Galactosidase Enzyme Activity, Serum
Test Mnemonic
ALPGAL
CPT Codes
- 82657 - QTY (1)
LOINC ®
1813-5
Aliases
- Anderson Fabry Disease
- GLA Deficiency
- Soft AGAS
- Fabry Disease Enzyme Test
Includes
- Alpha-Galactosidase, Interpretation
- Alpha-Galactosidase, Review
- Alpha-Galactosidase, Serum
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | SST (Gold) | Frozen, Critical | CRITICAL FROZEN. Transfer 2 mL serum to a standard aliquot tube. Separate specimens must be submitted when multiple tests are ordered. Physician name and phone number are required. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | No additive (Red) | Frozen, Critical | CRITICAL FROZEN. Transfer 2 mL serum to a standard aliquot tube. Separate specimens must be submitted when multiple tests are ordered. Physician name and phone number are required. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Unacceptable |
| Refrigerated | 24 hours |
| Frozen | 2 weeks |
Days Performed
Varies
Turnaround Time
9 - 19 days
Methodology
| Name | Description |
|---|---|
| Fluorometry (FLM) |
Reference Range
Special Info
CRITICAL FROZEN. Thawed specimens are unacceptable. Separate specimens must be submitted when multiple tests are ordered. Physician name and phone number are required. This test is New York DOH approved.
Clinical Info
Enzyme testing is reliable for diagnosing Fabry disease in males; it does not detect carriers. For carrier status, DNA analysis is recommended.