Rheumatoid Factor
CPT Code(s): | 86431 |
Specimen Required: | Patient Preparation:Fasting specimen preferred. Collect:Serum separator tube or plasma separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA). Specimen Preparation:Allow specimen to clot completely at room temperature. Transfer 0.5 mL serum or plasma to an RDL Standard Transport Tube. (Min: 0.5 mL) Storage/Transport Temperature:Refrigerated. Stability:After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month (should not be thawed more than once) |
New York DOH Approval Status: | This test is New York DOH approved. |
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