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Rheumatoid Factor : 4418
Test CodeRHEFAC or 4418
Alias/See Also
RF
CPT Codes
86431
Transport Container
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature.
Specimen Stability
Room temperature: 5 days; Refrigerated: 7 days; Frozen: 90 days
Methodology
Immunoturbidimetric
Setup Schedule
Sunday -Saturday
Report Available
1 day
Reference Range
<14 IU/mL
Clinical Significance
Elevated RF is found in collagen vascular diseases such as SLE, rheumatoid arthritis, scleroderma, Sjogren's syndrome, and in other conditions such as leprosy, tuberculosis, syphilis, malignancy, thyroid disease and in a significant percentage of otherwise normal elderly patients.
Performing Laboratory
med fusion