Complement C4 — lab reference
Some search terms matchedAsk your clinician to use performing-lab range and trend.
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What’s searchable?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.
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.
Age-adjusted and assay-specific diagnostic strategies may apply. Not a stand-alone thrombosis diagnosis.
Reagent-specific; affected by heparin, direct thrombin inhibitors, and fibrinogen abnormalities.
Color and clarity are nonspecific; review medications, hydration, and sediment.
Hydration and concentrating ability affect result.
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