Specimen: 2 mL (1 mL min.) serum from 1 SST. Ship refrigerated or frozen.
Stability (Room): 2 hrs
Stability (Refrigerated): 1 week
Stability (Frozen): 4 weeks
Method: Enzyme Immunoassay
Comment: Also see EXTRACTABLE NUCLEAR ANTIGENS.
Price: Contact Medilab
Turnaround time (TAT): 10 – 15 days
Usage: SSA/Ro & SSB/La are extractable nuclear antigens. SS-A/Ro antibodies occur in patients with Sjogren’s syndrome (90%), Lupus erythematosus (40-60%) & Rheumatoid arthritis. SS-B/La antibodies occur in patients with Sjogren’s syndrome (60%) &Lupus erythematosus (15%). This assay is useful for evaluating patients with signs and symptoms of connective tissue disorder in whom ANA is positive.
Disease: Autoimmune disorders
Components: *SS-A/Ro *SS-B/La
Home Collection: Available
Pre-test Information: Available