Specimen Requirements
Title
ENA ANTIBODIES (anti-RNP/anti-Sm)
Specimen Requirement
1 SST/1.0 mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.
Methodology
Stability
Room Temp 8 hours;Refrigerated 48 hours;Frozen 14 days
Reference Range
By report*
Turnaround
2 days Performed Mon, Wed, Thurs, Fri
Clinical Use
Detect antibodies associated with SLE and mixed connective tissue disease. Anti-Sm is highly specific for SLE. Anti-RNP is found with a variety of rheumatoid diseases with high titers associated mainly with MCTD.
Test Code
ENAW