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