Adult patient:
Heparin gel tube
Minimum blood volume: 5 mL |
|
Paediatric patient:
Paediatric heparin tube
Number of vials: 1
Minimum blood volume: 1.3 mL |
|
Authorisation code required |
No |
24 Hr available service |
Yes
(Call extension: 3353 for express result) |
Method |
Immunoassay |
Reference interval |
0.90 - 1.80 g/L
(Source: from manufacturer's kit insert) |
Clinical indication |
Monitoring activity of immune complex mediated disease, e.g. SLE, glomerulonephritis, cryoglobulinaemia
Detection of primary deficiency of C3 or C4 (rare) |
Result interpretation |
Reduced C4 with or without reduced C3: activation by classical pathway (e.g. SLE,
immune complex disease)
Raised C3 and / or C4: acute phase response |
Measurement of uncertainty |
|
Frequency of measurement |
Daily |