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Complement C4

Mnemonic:    [C4]
Name:    Complement C4
Specimen:    1 mL serum from a Red SST or Red top tube.
Minimum Spec:    0.5 mL
Spec Stability:    Stable 3 days refrigerated.
Reference Range:    15 - 48 mg/dL
  Method:    Immunoturbidimetric