Turnaround Time: Expected Turnaround Time 14 - 21 days
Test Type: 1 mL Serum
Stability Time:

Room temperature 7 days Refrigerated 14 days Frozen 60 days Freeze/thaw cycles Stable x1

Reference Range:

Units <20


Aids in the diagnosis of Systemic Lupus Erythematosus (SLE), and related connective tissue diseases such as Sjogren's Syndrome. Anti-Sm is highly specific for SLE. Anti U1-RNP is found with a varitey of rheumatoid diseases with high titers associated mainly with MCTD.

Collection Details:

Collection Instructions:

Red-top tube or gel-barrier tube Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.