A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
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General Information
Alias: Muscle Specific Receptor Tyrosine Kinase, Misc Lab Test Order
Performed: Varies
Turn Around Time: 9-15 days
CPT Codes: 83519
Performed By: Referral Lab
Clinical Utility: A positive result, in the context of congruent clinical findings, confirms the diagnosis of autoimmune MuSK
myasthenia gravis. Though a positive MuSK result is specific for the diagnosis of MuSK MG, a negative MuSK result does not rule out a MG diagnosis.
Link:
Muscle Specific Kinase (MuSK) Antibodies
Components
Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
MuSK Antibodies |
Radioimmunoprecipitation Assay (RIPA) |
|
|
|
<1.0 (a result of 1.0 or higher is positive) |
U/mL |
Specimen Requirements
Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
Blood |
Red no Gel, 6 mL |
|
|
Deliver within 6 hours of collection |
Room Temperature |
Transport serum specimen refrigerated |