C1 Complement blood test
Normal Reference Range
0.15 – 0.35 g/L
Test Information
An excessive amount of C1 and its intermediates C1r and C1s are produced in hereditary angioedema as a result of a functional loss (familial) of the C1 esterase inhibitor enzyme.
Clinical Indications
Differential diagnosis for patients who come with a widespread clinical picture of allergies that includes edoema, unexplained stomach pain, and in rare cases urticaria
Sample Required
5mL serum sample blood tube is required for C1 blood test
Min. sample volume
1.0mL
Special Instructions and Precautions
Not applicable
Time Limits For Retrospective Testing
Not applicable (sample referred)
Any factors affecting the test
Not applicable
Turnaround Time
5 – 8 days
Referral centre (if applicable)
Not applicable
Test Code
C1IN