Early and Established Rheumatoid Arthritis (RA) Panel
Ordering Recommendation
Use to identify rheumatoid arthritis (RA). This panel may have enhanced sensitivity due to the inclusion of 14-3-3 eta protein alongside conventional rheumatoid factor (RF) and anticyclic citrullinated peptide (anti-CCP) antibody. 14-3-3 eta is also used to stratify disease activity and monitor treatment effectiveness.
New York DOH Approval Status
Specimen Required
Fasting specimen preferred.
Serum separator tube (SST) or red top.
Allow serum to clot completely at room temperature before centrifuging. Transfer 2 mL serum to an ARUP standard transport tube. (Min: 1 mL) Serum is the only acceptable specimen type for this assay without a disclaimer.
Refrigerated.
Nonserum, contaminated, heat-inactivated, hemolyzed, icteric, or severely lipemic specimens.
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month (should not be thawed more than once)
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)/Quantitative Immunoturbidimetry/Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)
Performed
Sun-Sat
Reported
1-8 days
Reference Interval
Test Number |
Components |
Reference Interval |
---|---|---|
14-3-3 eta Protein, Serum | 0.19 ng/mL or less | |
Cyclic Citrullinated Peptide Ab, IgG/A | 19 Units or less | |
Rheumatoid Factor | 0-14 IU/mL |
Interpretive Data
Refer to report.
Analyte Specific Reagent (ASR)
Note
Hotline History
Hotline History
CPT Codes
83520; 86200; 86431
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050465 | Rheumatoid Factor | 11572-5 |
3016633 | Cyclic Citrullinated Peptide Ab, IgG/A | 57093-7 |
3017892 | 14-3-3 eta Protein, Serum | 75880-5 |
Aliases
- 14-3-3 eta
- 14.3.3 eta
- CCP and RF
- RA Panel
- RF and CCP IgG
- Rheumatoid Arthritis Profile