Autoimmune Liver Disease Panel
Label Mnemonic: ALDP
Epic code: LAB8698
Downtime form: A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery
Commercial Mailout Laboratory
6240-8 RCP
356-8593
Specimen(s):
Serum
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 1.5 mL Serum
Absolute Minimum: 1.0 mL Serum
Testing Schedule:
Monday through Friday; 9 am and 4 pm, Saturday; 12 pm
Turn Around Time:
3 days upon receipt at reference laboratory
Reference Range:
SMOOTH MUSCLE ANTIBODIES
Negative
If positive, results are titered.
Reference values apply to all ages

MITOCHONDRIAL ANTIBODIES (M2)
Negative: <0.1 Units
Borderline: 0.1-0.3 Units
Weakly positive: 0.4-0.9 Units
Positive: > or =1.0 Units
Reference values apply to all ages.

ANTINUCLEAR ANTIBODIES (ANA2)
Negative: < or =1.0 Units
Weakly positive: 1.1-2.9 Units
Positive: 3.0-5.9 Units
Strongly positive: > or =6.0 Units
Reference values apply to all ages.
Interpretive Data:
The presence of smooth muscle antibodies (SMAs) and/or antinuclear antibodies (ANAs) is consistent with a diagnosis of chronic autoimmune hepatitis, in patients with clinical and/or laboratory evidence of hepatocellular damage.

The presence of anti-mitochondrial antibodies (AMAs) is consistent with a diagnosis of primary biliary cirrhosis, in patients with clinical and/or laboratory evidence of hepatobiliary damage.
Comments:
Useful for:
Evaluation of patients with suspected autoimmune liver disease, specifically autoimmune hepatitis or primary biliary cirrhosis.

Evaluation of patients with liver disease of unknown etiology.
Methodology:
AMA: Enzyme Immunoassay (EIA)
SMA: Indirect Immunofluorescence
ANA2: Enzyme-Linked Immunosorbent Assay (ELISA)
CPT Code:
83516 x1, 86038 x1, 86255 x1
86256-Smooth Muscle Antibodies Titer (if appropriate)