Myelin Associated Glycoprotein IgM (MAG IgM) Antibody
Order Name
MAG IGM
Test Number: 5523200
Revision Date 12/12/2022
Test Number: 5523200
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Myelin Associated Glycoprotein IgM (MAG IgM) Antibody
|
Enzyme-Linked Immunosorbent Assay (ELISA) | 17314-6 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1 mL (0.1 mL) | Serum | Clot Activator (SST or Red No-Gel) | Frozen |
| Instructions | Notes: 0.1 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Gel-barrier tube or red-top tube Specimen Storage: FREEZE Specimen Collection: Separate serum from cells. Transfer the serum into a LabCorp PP transpak frozen purple tube with screw cap (LabCorp No 49482) Freeze immediately. Maintain frozen at <=-20C until tested. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED. Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: 1 year (stability provided by manufacturer. |
|||
| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 7 days |
| Clinical Use | High concentrations of IgM MAG autoantibodies are found in approximately 50% of patients with peripheral neuropathies accompanied by IgM monoclonal gammopathies. Lower concentrations of MAG IgM autoantibodies can also be found in patients with inflammatory neuropathies, multiple sclerosis, systemic lupus erythematosus and healthy individuals. |
| Performing Labcorp Test Code | 140120 |
| Notes | BUHLMANN™ anti-MAG ELISA. This assay measures antibodies to purified human MAG and has been employed in numerous clinical studies. ?Labcorp Test Code: 140120 |
| CPT Code(s) | 83516 |
| Lab Section | Reference Lab |