We use cookies to help us improve the website and your experience using it. You may delete and block all cookies from this site at any time. However, please note this may result in parts of the site no longer working correctly. If you continue without changing your settings we will assume you are happy to receive all cookies on this site.



Referred to:

Department of Immunology
PO Box 894
S5 7YT

General information

Specimen transport: At room temperature. Sample should be frozen if not dispatched immediately to the referral lab.

Repeat frequency: At significant change of clinical symptoms

Special precautions: None

Laboratory information

Normal reference range: 50-250 mg/L

Volume and sample type: 7ml clotted blood

Method: RID

Turnaround time (calendar days from sample receipt to authorised result): Median - 16, 95th percentile - 34

Clinical information

Indications for the test:

  • Levels are reduced in acquired angioedema
  • Levels are also reduced in urticarial vasculitis - a complication of SLE
  • Sj√∂gren's syndrome, cryoglobulinaemia and hepatitis C infection

Factors affecting the test: None

ICE reference: Anti-C1q Antibodies


(Last updated May 29th 2018)