| Synonyms:
| RF, RA |
| Specimen: | Blood; (1) SST (serum separator), Red (no preservative) or Green (lithium heparin) top vacutainer tube. |
| Volume: | Full primary tube |
| Minimum Volume: | 300 microL serum |
| Collection: | If tube other than an SST is collected, transfer serum or plasma to a tightly capped plastic aliquot tube within 2 hours of collection for transport.
Refrigerate at 2-8°C for 7 days; freeze at -20°C for up to 3 months.
|
| Rejection Criteria: | Improper labeling. |
| Reference Range: | Less than 15 IU/mL |
| Methodology: | |
| Test Use: | Measurements of RF are used as an aid in the diagnosis of rheumatoid arthritis. |
| Additional Information: | No Additional Information Listed |
| Testing Includes: | |
| Testing Facility: | |