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HelpTest Code FGADASO Glutamic Acid Decarboxylase (GAD) Autoantibody
Additional Codes
Mayo forwards to LabCorp for testing.
Specimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL Serum
Collection Instructions:
1. Centrifuge and aliquot 0.5 mL of serum into a plastic vial.
2. Send refrigerated.
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Reporting Name
GAD-65 AutoantibodySpecimen Type
SerumSpecimen Minimum Volume
Serum: 0.4 mL
Note: This volume does not allow for repeat testing.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Ambient | 14 days | |
| Frozen | 14 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Specimen other than serum | Reject |
Reference Values
0.0-5.0 units/mL
Cautions
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.
Day(s) Performed
Monday through Saturday
Report Available
5 to 8 daysPerforming Laboratory
LabCorp BurlingtonCPT Code Information
86341
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FGADA | GAD-65 Autoantibody | Not Provided |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| FGADA | GAD-65 Autoantibody | 56540-8 |