Muscle-Specific Kinase (MuSK) Autoantibody
Order Name
MUSKm
Revision Date 10/22/2019
Revision Date 10/22/2019
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Muscle-Specific Kinase (MuSK) Autoantibody
|
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 1.5 mL (1.0 mL) | Serum | Serum Gel Tube | Refrigerated |
| Alternate 1 | 1.5 mL (1.0 mL) | Serum | Red Top | Refrigerated |
| Instructions | Label specimen with Mobilab label or with patient name (first and last), date of birth, date and time of collection, collector initials, and test(s) being ordered. | |||
| Reference Range | < or =0.02 nmol/L Interpretation A positive result, in the appropriate clinical context, confirms the diagnosis of autoimmune muscle-specific kinase myasthenia gravis. Seropositivity justifies consideration of immunotherapy. |
|||
| Methodology | Radioimmunoassay (RIA) | |||
| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Tuesday,Thursday; 6 a.m. |
| Expected TAT | 4 Days |
| Notes | Specimen Stability: Refrigerated (preferred) - 28 Days Frozen - 28 Days Ambient - 72 Hours |
| CPT Code(s) | 83519 |
| Lab Section | NRLS-Mayo Medical Laboratories |