RHEUMATOID FACTOR QUANTITATIVE (RF)
: RF, RA
: Turbidimetric Immunoassay
: 0-18 yrs: 9-17 IU/mL , 19-150 yrs: 0.0-29.9 IU/mL
: Red top tube - 5 mL
: 2 microtainers
: 2 mL serum
: 0.5 mL serum
: Room Temperature or Refrigerated
: Room Temperature 1 day; refrigerated 3 days; 1 month at -20 C
Reasons for Rejection
: Hemolysis; improper collection
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