F-Actin (Smooth Muscle) Antibody, IgG by ELISA with Reflex to Smooth Muscle Antibody, IgG Titer FACTIN
|Method(s)||Semi-Quantitative Enzyme-Linked Immunosorbent Assay/Semi-Quantitative Indirect Fluorescent Antibody|
One 5 mL gold (SST) top tube.
Separate from cells as soon as possible or within 2 hours of collection. Transfer1 mL serum at 2-8°C (Min: 0.25 mL)
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Plasma. Contaminated, heat-inactivated, hemolyzed, or lipemic specimens.
|CPTCode||83516; if reflexed, add 86256|
In viral hepatitis the titers are generally less than 1:80 and are transient. The titers in primary biliary cirrhosis are also low, ranging from 1:20 to 1:40. If F-Actin is 20 Units or greater, then Smooth Muscle Antibody, IgG IFA titer will be added.
|Preferred Specimen Collection Device(s)|