Test Directory

Complement C4

Containers - Adult

AAXXAANoImage.jpg
Sarstedt Monovette Serum Gel Tube (Brown Cap)
Volume Range

4.9ml

Additive per Container

Clotting activator/gel

Containers - Child

AAXXAANoImage.jpg
Sarstedt Monovette Serum Gel Tube (Brown Cap)
Volume Range

4.9ml

Additive per Container

Clotting activator/gel

Reference ranges

The normal range is 0.1-0.4 g/L

Laboratory Site

RIE
51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA
Telephone: 0131 536 1000

Special instructions for collection

Serum samples only please.

How to request

Trak, ICE, Clinical Immunology request form

Availability

Normal working hours 9am to 5pm Mon to Fri

Anticipated turnaround

14 Days

What happens if the result is positive or abnormal

Reviewed and authorised by Consultant Immunologist

General additional information

Diagnosis and monitoring of immune complex disease eg SLE, immune complex mediated vasculitis and hereditary angioedema or other C1 inhibitor deficiencies.

Low levels of C4 strongly suggest immune complex disease.  They are found most commonly in cases of active SLE, cryoglobulinaemia, C1 inhibitor deficiency and in some individuals with hereditary C4 deficiency.