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