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HelpTest Code GM1BM Ganglioside Antibody Panel, Serum
Additional Codes
MAYO: GM1B
EPIC: LAB5284
Reporting Name
Ganglioside Ab Panel, SUseful For
Supporting the diagnosis of an autoimmune neuropathy
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| IGG_M | IgG Monos. GM1 | No | Yes |
| IGM_M | IgM Monos. GM1 | No | Yes |
| IGG_A | IgG Asialo. GM1 | No | Yes |
| IGM_A | IgM Asialo. GM1 | No | Yes |
| IGG_D | IgG Disialo. GD1b | No | Yes |
| IGM_D | IgM Disialo. GD1b | No | Yes |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumSpecimen Required
Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 1 mL
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reference Values
Profile Information:
IGG_M: Negative
IGM_M: Negative
IGG_A: Negative
IGM_A: Negative
IGG_D: Negative
IGM_D: Negative
Reflex Information:
IGMTS: <1:2000
IMMTS: <1:4000
IGATS: <1:16000
IMATS: <1:8000
IGDTS: <1:2000
IMDTS: <1:2000
Day(s) Performed
Tuesday, Thursday
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
83516 x 6
83520 x 6 (if applicable)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| GM1B | Ganglioside Ab Panel, S | 82455-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 4414 | IgG Asialo. GM1 | 63212-5 |
| 4416 | IgG Disialo. GD1b | 94868-7 |
| 4412 | IgG Monos. GM1 | 63243-0 |
| 4415 | IgM Asialo. GM1 | 63384-2 |
| 4417 | IgM Disialo. GD1b | 94870-3 |
| 4413 | IgM Monos. GM1 | 63247-1 |
Report Available
5 to 8 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Forms
If not ordering electronically, complete, print, and send a Neurology Specialty Testing Client Test Request (T732) with the specimen.
Secondary ID
83189Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| IGMTS | IgG Monos GM1 Titer, S | No | No |
| IMMTS | IgM Monos GM1 Titer, S | No | No |
| IGATS | IgG Asialo GM1 Titer, S | No | No |
| IMATS | IgM Asialo GM1 Titer, S | No | No |
| IGDTS | IgG Disialo GD1b Titer, S | No | No |
| IMDTS | IgM Disialo GD1b Titer, S | No | No |
Testing Algorithm
Screening tests are performed for IgG and IgM antibodies to GM1 and GD1b. If positive, the appropriate titer will be performed at an additional charge.
See Ganglioside Antibody Panel Algorithm in Special Instructions.