Complement

Alternative names, keywords

C3, C4

Samples required

Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples.

Test indications

Reference range

C3: 0.81 - 1.57 g/L
C4: 0.13 - 0.39 g/L

Consumption may exceed production in active autoimmune disorders.

Turnaround time

2 working days

Enquiries

Biochemistry (Special Chemistry)