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Test Code LAB206 Rheumatoid Factor (RF), Plasma or Serum

Reporting Title

RF

Methodology

Immunoturbidimetric Assay

Useful for diagnosis and prognosis of rheumatoid arthritis.

Performing Laboratory

OhioHealth Laboratory Services-RMH Special Testing

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.
Note:

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

 

Alternate:

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.  EDTA is also acceptable

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 8 days
     
  Frozen  3 months

 

Specimen Transport Temperature

Refrigerate/Ambient OK/Frozen OK

Reference Values

<14 IU/mL

Day(s) Test Set Up

Monday through Friday; 24/7

Saturday and Sunday; Day shift

Test Classification and CPT Coding

86431