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Striated Muscle Antibody with Reflex to Titer : 266
Test CodeSTMUS or 266
Alias/See Also
Anti-Skeletal Muscle Antibody, Skeletal Muscle Antibody, Anti-striated Muscle Antibody, Striational Antibody
CPT Codes
86255
Includes
If Striated Muscle Antibody Screen is positive, then Striated Muscle Antibody Titer will be performed at an additional charge (CPT code(s): 86256) (STMABB, 266-2)
Instructions
Serum separator tube.
Transport Container
Centrifuge serum separator tube and transport, 0.5 mL (Min: 0.1 mL).
Transport Temperature
Refrigerated.
Specimen Stability
Room temperature: 4 days; Refrigerated: 14 days; Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis; Grossly lipemic; Grossly icteric
Methodology
Immunofluorescent Assay
Setup Schedule
Tuesday - Saturday
Report Available
3-5 days (From receipt at performing laboratory)
Limitations
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Reference Range
Negative
Clinical Significance
Striated Muscle Antibody is more commonly detected in patients over age 60 years with myasthenia gravis than in younger patients. There is a strong correlation between the presence of Striated Muscle Antibody and thymoma in patients with myasthenia gravis.
Performing Laboratory
Quest Diagnostics
