Test directory: Rheumatoid Factor (IgA, IgG, IgM)

Ordering Code 7946
Test Name Rheumatoid Factor (IgA, IgG, IgM)
Alias RF
RA
Preferred Specimen Serum
Preferred Container Plain (Red)
Optimum Volume 1 mL
Collection Instructions Overnight fasting is preferred.
Transport Requirements Oahu: Ambient
Airline: Frozen
Specimen Stability Ambient: 48 Hours
Refrigerated: 8 Days
Frozen: 28 Days
Rejection Criteria Gel barrier tube, Grossly hemolyzed, Grossly lipemic,
Grossly icteric, Heat treated samples
Avail. Stat NO
Analytic Time 10 Days
Methodology Immunoassay (IA)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Rheumatoid Factor (IgA) ALL See report.
Rheumatoid Factor (IgG) ALL See report.
Rheumatoid Factor (IgM) ALL See report.