Reference Interval:
| Test Number
| Components
| Reference Interval
| | 0055248 | F-Actin (Smooth Muscle) Antibody, IgG
| 19 Units or less: Negative
20-30 Units: Weak Positive - Suggest repeat testing in two to three weeks with fresh specimen.
31 Units or greater: Positive - Suggestive of autoimmune hepatitis or chronic active hepatitis.
| | 0051244 | Smooth Muscle Antibody, IgG Titer
| <1:20 = Normal - 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.
|
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| Interpretive Data: |
Refer to report.
|
| Note: |
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 ³20 Units, then Smooth Muscle Ab, IgG IFA titer will be added.
|
| CPT Code(s): |
83516 Actin IgG; if reflexed, add 86256 ASMR Titer
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