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HelpTest Code FAT1G Anti-TIF-1gamma Antibody
Specimen Required
Collection Container/Tube: Red
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Acceptable: SST
Collection Instructions: Draw blood in a plain red-top tube(s), serum gel tube is acceptable. Spin down and send 1 mL of serum refrigerated in a plastic vial.
Method Name
Enzyme-linked immunosorbent assay (ELISA)
Reporting Name
Anti-TIF-1gamma AbSpecimen Type
SerumSpecimen Minimum Volume
0.3 mL (volume does NOT allow for repeat testing)
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 60 days | ||
| Ambient | 7 days |
Reject Due To
| Gross hemolysis: | Reject |
| Thawing: | Warm OK; Cold OK |
| Gross lipemia: | Reject |
| Gross icterus | Reject |
| Other: | Anything other than serum; bacterial contamination |
Clinical Information
Anti-TIF-1(P155) antibodies are present in 15-38% of adult DM and 20-30% in JDM. Highly associated with malignancy which is found in 50-75% of positive adult patients; 89% specificity and 78% sensitivity for diagnosing cancer associated DM; no cancer association in children.
Reference Values
Reference Range: <20
Â
Interpretation:
Negative: <20 units
Weak Positive: 20 - 39 units
Moderate Positive: 40 - 80 units
Strong Positive: >80 units
Performing Laboratory
Esoterix EndocrinologyTest Classification
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.CPT Code Information
86235
Day(s) Performed
Monday through Friday