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Test Code ZW242 Rheumatoid Factor Pleural Fluid  Rheumatoid Factor Pleural Fluid 

Important Note

1. Must be ordered as a .Mayo Misc

2. For the Code use: ZW242

3. For the Test Name use:  Rheumatoid Factor Pleural Fluid 

4. In the Order Notes put: ARUP #2003347

5. Specimen source must be provided.

 

 

Additional Codes

  • RF body fluids

Specimen Requirements

 CSF, Pericardial, Pleural, or Synovial fluid. Centrifuge to remove cellular material. Transfer 1 mL body fluid to screw top tube.

Minimum Volume: 0.5 mL

Unacceptable: Specimen types other than those listed. Specimens too viscous to be aspirated by instrument.

 

Performing Laboratory

ARUP

We send to Mayo who then sends to ARUP

Shipping Requirements

Specimen Stability:

Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month (should not be thawed more than once)

LOINC Codes

2003348 Rheumatoid Factor, Body Fluid 30231-5
2013048 Rheumatoid Factor Fluid Source 31208-2