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C1q

Referred to:

Department of Immunology
PO Box 894
Sheffield
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

 

(Last updated October 7th 2014)