Anti-IBM Antibody (Anti-cN-1A)

Anti-cN-1A autoantibodies in idiopathic inflammatory myopathy (IIM) patients appear to be disease-specific for sIBM and are rarely detected in other autoimmune conditions. Anti-cN-1A autoantibodies have a moderate sensitivity, but their high specificity for sIBM may be helpful in the diagnosis of this infrequent and difficult-to-diagnose myopathy. This assay can augment and accelerate the suspected diagnosis of sIBM using sera where muscle biopsy is delayed and/or unfeasible.

Test Code: 230
Download File: RDL_IBM-Inclusion-Body-Myositis_11-2015.pdf
CPT Code: 83520
Methodology: EIA (LDT)
Specimen Requirements: 2 mL serum or plasma, refrigerated or frozen
Turn Around Time: 7 Days
Special Instructions: None