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Sidebar Content

Mayo Clinic Laboratories

 

sidebar content for test

Mayo Clinic Laboratories

Test ID FRHFG Rheumatoid Factor (IgG,IgA,IgM)

Method Name

Enzyme Linked Immunosorbent Immunoassay

Reporting Name

Rheumatoid Factor (IgG,IgA,IgM)

Specimen Type

Serum

Draw blood in a plain red-top tube(s), serum gel tube(s) is not acceptable. Spin down and send 1.8 mL of serum refrigerated in a plastic vial.

Specimen Minimum Volume

0.9 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 8 days
  Frozen  28 days

Reference Values

Rheumatoid Factor (IgG)            ≤6      Negative

                                                >6        Positive

 

Rheumatoid Factor (IgA)            ≤6      Negative

                                                >6        Positive

 

Rheumatoid Factor (IgM)           ≤6      Negative

                                                >6        Positive

 

Day(s) Performed

Tuesday, Friday

Report Available

2 days

Performing Laboratory

Quest Diagnostics Nichols Institute

CPT Code Information

83520 x 3

NY State Approved

No