Test Code SS-B AB Sjogren's SS-B/La Antibody
Specimen Type
Blood
Minimum Volume
1.0 mL
Container
Plain Red
Serum/Refrigerate
Turnaround Time
Batch tested Tuesday, Wednesday and Friday.
Testing days subject to change based on volume
Methodology
Fluorescent Enzymatic Immunoassay
Reference Range
≤6.9 unit/mL Negative
Notes
Antibody results should not be used alone for diagnosis and must be interpreted in light of clinical manifestations and other test results.
SS-B/La antibodies are the serological hallmark of Sjogren’s syndrome, but a small portion of patients remain SS-B/La negative. Although a strong association of neonatal lupus erythematosus (NLE) with anti SS-A/Ro was recognized first, the majority of mothers with babies with NLE are now known to have serum SS-B/La antibodies as well.
CPT Code
86235