Myasthenia Gravis Eval Adult
Order Name
MYAGRAV
Revision Date 07/20/2015
Revision Date 07/20/2015
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Myasthenia Gravis Eval Adult
|
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 3.0 mL ( 2.0 mL) | Serum | Red Top | Refrigerated |
| Alternate 1 | 3.0 mL ( 2.0 mL) | Serum | Serum Gel Tube | Refrigerated |
| Instructions | COLLECTION INSTRUCTIONS: Patient should have no general anesthetic or muscle-relaxant drugs in the previous 24 hours. PROCESSING INSTRUCTIONS: Collect blood and allow 30 minutes for specimen to clot. Centrifuge, transfer serum into aliquot tube, and refrigerate. STABILITY: Room Temperature: 72 hours Refrigerated (preferred): 28 days STORAGE: Refrigerated REJECT DUE TO: Gross Hemolysis Gross Lipemia Gross Icterus |
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| Reference Range | ACh RECEPTOR (MUSCLE) BINDING ANTIBODY < or =0.02 nmol/L ACh RECEPTOR (MUSCLE) MODULATING ANTIBODIES 0-20% (reported as __% loss of AChR) STRIATIONAL (STRIATED MUSCLE) ANTIBODIES <1:60 |
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| Methodology | ARBI/8338, ARMO/83378, GANG/84321, GD65S/81596, VGKC/89165: Radioimmunoassay (RIA) STR/8746: Enzyme Immunoassay (EIA) CRMWS/83107: Western Blot |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Monday through Friday |
| Expected TAT | 3-7 days |
| CPT Code(s) | 83519-59-ACh receptor (muscle) binding antibody 83519-59-ACh receptor (muscle) modulating antibodies 83520-Striational (striated muscle) antibodies 83519-59-AChR ganglionic neuronal antibody (if appropriate) 83519-59-Neuronal VGKC autoantibody (if appropriate) 84182-CRMP-5-IgG Western blot (if appropriate) 86341-GAD65 antibody assay (if appropriate) |
| Lab Section | NRLS-Mayo Medical Laboratories |