Lupus Panel 3 with ANA, IFA with Reflex to Titer and Pattern
Test Code
Clinical Significance
Lupus Panel 3 with ANA, IFA with Reflex to Titer and Pattern - This panel can be helpful in the diagnosis and management of systemic lupus erythematosus (SLE). The panel simultaneously tests for antinuclear antibodies (ANAs) with an immunofluorescence assay (IFA), performed on human epithelial type 2 (HEp-2) cells, as well as 6 specific autoantibodies associated with SLE and 3 biomarkers associated with disease activity. For specimens with positive ANA IFA results, reflex testing for ANA titer and pattern is performed.
The ANA testing has high sensitivity (97%) for SLE but limited specificity (34%) [1]. Anti-dsDNA and anti-Sm antibodies are less sensitive ...
Test Resources
Clinical Focus
Autoimmune Rheumatic and Related DiseasesTest Details
DNA (ds) Antibody
Sjogren's Antibodies (SS-A, SS-B)
Sm Antibody
RNP Antibody
Chromatin (Nucleosomal) Antibody
Complement Component C3c and C4c
Complement, Total (CH50)
If ANA Screen, IFA is positive, then ANA Titer and Pattern will be performed at an additional charge (CPT code(s): 86039).
Methodology
Reference Range(s)
Alternative Name(s)
Preferred Specimen(s)
1 mL serum collected in each of 4 separate tubes
Minimum Volume
0.5 mL serum collected in each of 4 separate tubes
Transport Container
Transport tubes (x4)
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 7 days
Reject Criteria
Gross hemolysis • Lipemia • Received thawed • Microbial contamination may interfere • Grossly icteric
Setup Schedule
Refrigerated: Unacceptable
Frozen: 7 days