May be helpful in evaluating for autoimmune liver disease. For a more comprehensive reflex panel, refer to Autoimmune Liver Disease Evaluation with Reflex to Smooth Muscle Antibody (SMA), IgG by IFA (2007210).
- Patient Preparation
- Serum separator tube
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)
- Storage/Transport Temperature
- Unacceptable Conditions
- Contaminated, hemolyzed, or severly lipemic specimens.
- Ambient: 48 hours, Refrigerated: 2 weeks; Frozen: 1 year
|Less than 1:20||Negative - No Antibody detected.|
|1:20-1:80||Weak Positive - Suggest repeat testing in two to three weeks with fresh specimen.|
|1:160 or greater||Positive - Suggestive of autoimmune hepatitis or chronic active hepatitis.|
|Component Test Code*||Component Chart Name||LOINC|
|0051244||Smooth Muscle Ab, IgG Titer||47977-4|