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Test Code 15384; SQ: RFSRQ Rheumatoid Factor Screen with Reflex to Titer, Synovial Fluid

Specimen Collection Instructions

1 mL synovial fluid (0.3 mL minimum volume) collected in a sterile screw-cap vial. Specimen should be sent refrigerated (cold packs) to Quest. 

 

Stability

Room temperature: 24 hours

Refrigerated: 7 days

Frozen: 21 days

Methodology

Latex Agglutination (LA)

Reference range(s)

Rheumatoid Factor, LA Screen: Negative

Rheumatoid Factor, LA Titer: <1.5