Test Overview
Test Methodology
RIA
Test Usage
Diagnosis of autoimmune muscle-specific kinase (MuSK) myasthenia gravis. Second-order test to aid in the diagnosis of autoimmune myasthenia gravis when first-line serologic tests are negative. Establishing a quantitative baseline value for MuSK antibodies that allows comparison with future levels if weakness is worsening.
Reference Range *
< or =0.02 nmol/L
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Tuesday, Thursday
Analytic Time
3 days
Soft Order Code
MMUSK
MiChart Code
MuSK Antibody, Mayo Sendout
Synonyms
- MUSK
- MuSK Ab
- Muscle-specific receptor tyrosine kinase (MuSK) Antibody
Laboratory
Sendout
Reference Laboratory
Mayo MUSK
Section
Special Testing
Specimen Requirements
Additional Information
Test sent to Mayo Medical Laboratories.
Billing
CPT Code
83519
Fee Code
21611