|Plasma Separator Tube 4.5 mL
Call laboratory for additional acceptable specimen collection containers.
3.0 mL whole blood from light green top tube or TWO
24 hrs/day, 7 days a week, including holidays.
3 hours (upon receipt in laboratory)
1.0 AI (antibody index) or less
Smith (Sm) antibodies are specific for lupus erythematosus (LE) and
occur in approximately 30% of LE patients. Levels of Sm antibodies
remain relatively constant over time in patient with LE and are
typically found in patients that also have RNP antibodies.
Assay methodology and reference ranges changed February 25, 2013.
Multiplex flow immunoassay