Rheumatoid factor (RF) is an anti-?-globulin antibody thought to be directed against the Fc portion of the immunoglobulins. A large portion of patients with rheumatoid arthritis (RA) are RF positive, but the role RF plays in RA is uncertain. About 25% of patients with RA are RF negative but may become positive later in their disease course. In addition to RA, RF can be seen in systemic lupus erythematosus (SLE), chronic inflammatory processes, old age, infections, liver disease, multiple myeloma, sarcoid, and Sj
Product features:
Product code 41025:
Immunoturbidimetric method.
For testing RF in the human serum and plasma.
Ready to use reagents.
No prozone effect up to 800 iU/mL.
Very good correlation with other commercially available reagents.
Calibrator included in the pack.
Multi points calibration (5 levels serial dilution)
AMR: between 6 and 160 iU/mL.
Can be programmed on fully automated instruments and on semiautomatic analyzers.
2 levels of controls-optional
Product code 41020:
Immunoturbidimetric method.
For testing RF in the human serum and plasma.
Ready to use reagents.
No prozone effect up to 1500 iU/mL.
Very good correlation with other commercially available reagents.
Calibrator included in the pack.
Multi points calibration (5 levels serial dilution)
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