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Rheumatoid Arthritis Diagnostic Panel 3
Test Code19878
CPT Codes
86200, 86235 (x2), 83520 (x3)
Includes
Rheumatoid Factor (IgA, IgG, IgM)
Cyclic Citrullinated Peptide (CCP) IgG
Sjogren's Antibodies (SS-A, SS-B)
Cyclic Citrullinated Peptide (CCP) IgG
Sjogren's Antibodies (SS-A, SS-B)
Preferred Specimen
3.5 mL serum collected in each of three separate tubes
Patient Preparation
Overnight fasting is preferred
Minimum Volume
1.9 mL (x3)
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Grossly icteric • Heat treated samples • Lithium and heparin plasma
Methodology
Immunoassay (IA)
Setup Schedule
Set up and Report available: See individual assays
Reference Range
| Rheumatoid Factor (IgA) |
| ≤6 Negative |
| >6 Positive |
| Rheumatoid Factor (IgG) |
| ≤6 Negative |
| >6 Positive |
| Rheumatoid Factor (IgM) |
| ≤6 Negative |
| >6 Positive |
| CCP Antibody (IgG) |
| <20 Negative |
| 20-39 Weak positive |
| 40-59 Moderate Positive |
| >59 Strong positive |
| Sjogren's Antibody (SS-A) |
| <1.0 Negative |
| Sjogren's Antibody (SS-B) |
| <1.0 Negative |
Clinical Significance
This assay may be useful in supporting or ruling out a diagnosis of rheumatoid arthritis.
