Rheumatoid factor (RF) test
Date:
October 19, 2026
Category:
Rheumatoid factor (RF) test
Determines rheumatoid factor in serum or plasma. Intended for professional use (in vitro diagnostics).
Contact our sales team for availability and delivery time
What is this test?
The rapid rheumatoid factor (RF) test detects RF autoantibodies in serum, plasma, or whole blood. It aids in the evaluation of patients suspected of having rheumatoid arthritis or another autoimmune disease. RF may also be positive in healthy individuals, so the result is evaluated alongside clinical data and other tests.
Technical information
- Method
- Lateral flow chromatographic immunoassay
- Result in
- 10 min
- Storage temperature
- 2–30 °C
- Shelf life
- 24 months
- Sensitivity
- 98 %
- Specificity
- 97.7 %
- Accuracy
- 97.8 %
- Equipment
- Not required – visual reading
- Compliance
- CE-marked in vitro diagnostic device
Variants and order codes
| Code | Specimen | Format | Pack size | Cut-off |
|---|---|---|---|---|
| AF-YADJEZ | Serum / plasma | Cassette | 20 tests | 25 IU/mL |