ARUP's Laboratory Test Directory

Rheumatoid Factor, Body Fluid : 2003347

Mnemonic: RA-FL

Methodology: Quantitative Immunoturbidimetry
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Body fluid.

Specimen Preparation: Centrifuge to remove cellular material. Transfer 1 mL body fluid to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature: Refrigerated.

Remarks: Indicate source on the test request form.

Unacceptable Conditions: Breast milk and salivary fluid. Specimens too viscous to be aspirated by instrument.

Stability (collection to initiation of testing): After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 2 weeks (should not be thawed more than once)

Reference Interval:
A reference interval has not been established for body fluid specimens.
Interpretive Data: This test is FDA cleared, but is not labeled for use with body fluid specimens.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 86431