Rheumatoid factor — lab reference
Some search terms matchedAssay-specific and nonspecific. Ask your clinician to read this result with symptoms and anti-CCP.
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What’s searchable?Assay-specific and nonspecific. Ask your clinician to read this result with symptoms and anti-CCP.
Assay-specific; higher values may carry greater specificity.
Ask your clinician to use performing-lab range and trend with C4/CH50 and disease activity.
Ask your clinician to use performing-lab range and trend.
Age and assay-specific. Ask your clinician to consider subclasses or electrophoresis when indicated.
Age and assay-specific. Important when interpreting IgA-based celiac testing.
Age and assay-specific.
Sample handling and test methods can change a cytokine result. Compare it with the exact range from your lab and ask why the test was ordered.
Reagent-specific. Ask your clinician to read this result with INR, liver function, vitamin K, and anticoagulants.
Normal range only. Warfarin therapeutic targets are indication-specific.
Reagent-specific. Heparin monitoring may use different targets or anti-Xa.
Acute-phase reactant; functional and antigenic assays differ.
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