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Complement C3

General information

Specimen transport: At room temperature

Repeat frequency: At significant change of clinical symptoms, monitoring of treatment.

Special precautions: None

Laboratory information

Normal reference range: Age and gender specific normal range

Test Units 0 days to 4 weeks 4 weeks to 12 years 12-20 years 20-50 years 50-90+ years
C3 g/L 0.32-1.4 0.62-1.6 Male 0.62-1.2
Female 0.62-1.5
0.62-1.6 0.62-1.6

 

Volume and sample type: 7ml clotted blood

Method: Nephelometry

Turnaround time (calendar days from sample receipt to authorised result): Median - 1, 95th percentile - 5

Clinical information

Indications for the test: Monitoring of SLE. Post streptococcal glomerulonephritis and other conditions of complement activation

Factors affecting the test: Traumatic venepuncture or delay in transport may lead to falsely low levels.

 

Clinical workstation reference: C3

 

(Last updated October 7th 2014)