Muscle specific kinase antibodies-994
Test info
Muscle specific kinase antibodies
994
LAB994
MSO
AChR seronegative MG
Anti-MuSK
MG
MG antibodies
MuSK antibodies
Myasthenia Gravis
ACh receptor
Anti-MuSK
MG
MG antibodies
MuSK antibodies
Myasthenia Gravis
ACh receptor
- Diagnosis of muscle-specific kinase (MuSK) myasthenia gravis.
- Secondary or reflex test to aid in the diagnosis of autoimmune myasthenia gravis when first-line tests (acetylcholine receptor antibodies) are negative.
- Serial measurement of MuSK antibodies to monitor MuSK MG treatment as MuSK antibody titer correlate with disease severity.
Specimen
Serum
1.0 mL
0.5 mL
Submission of the minimum volume does not allow for repeat testing
Submission of the minimum volume does not allow for repeat testing
Immediately following collection, mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Gold serum separator (SST) tube
- Allow sample to clot
- Spin within two (2) hours of sample collection
- Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen -1 year
Freeze/thaw cycles - stable x6
- Gross hemolysis
- Lipemic sample
Performance
Esoterix Endocrinology (804600) via LabCorp (504600): R-NX
Th
8 - 13 days
Radioimmunoprecipitation Assay (RIPA)
Clinical and Interpretive info
< 1.0 U/mL
Billing
86366
All charges for this test will be billed back to the requesting site
Result 51716-9
Tracking
05/24/2019
01/04/2024
12/20/2023