Rheumatoid factor
| Material: | 1 ml serum | Reference range | < 14 IE/ml |
| Indication | Suspicion for rheumatoid arthritis, prognosis of disease activity |
| Please note | Rheumatoid factor is while sensitive not specific for rheumatoid arthritis. Various other diseases can also cause eleveted RF-titres like lupus erythematodes, sclerodermia, sjögren syndrome, infectuous mononucleosis, hepatitis B. Sligthly elevated titres are also found physiologically within elderly people. The determination of anti-CCP-antibodies offers superior specificity for rheumatoid arthritis. |
| Accredited | ja |
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