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Complement


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Complement

Alternative Names:

Complement assay; Complement proteins
Normal Values:
  • Total hemolytic complement level: 41 to 90 hemolytic units
  • C1 esterase inhibitor level: 16 to 33 mg/dl (160 to 330 mg/L)
  • C3 levels:
    • males: 88 to 252 mg/dl (880 to 2520 mg/L)
    • females: 88 to 206 mg/dl (880 to 2060 mg/L)
  • C4 levels:
    • males: 12 to 72 mg/dl (120 to 720 mg/L)
    • females: 13 to 75 mg/dl (130 to 750 mg/L)
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Note: mg/dl = milligrams per deciliter.

(This test may also be reported as mg/L = milligrams per liter.)


What abnormal results mean:

Increased complement activity may be seen in:

Decreased complement activity may be seen in:
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