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Unit Code 8171:
Complement C4, Serum

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Useful For

Investigating an undetectable total complement (CH[50])

 

Confirming hereditary angioedema (with low C1 inhibitor)

 

Assessing disease activity in SLE,

proliferative glomerulonephritis, rheumatoid arthritis (RA), and

autoimmune hemolytic anemia

Method Name

Nephelometry

Reporting Name

Complement C4, S

Ordering Mnemonic

C4

Aliases

C4 (Fourth Component of Complement), Serum

C4 Complement Serum

Fourth Component of Complement

Hereditary Angioedema Panel (3 tests)

Key