top of page

C4 (Complement Component )

Understand the causes of your immune system disorders

  • 15 min
  • 35 British pounds
  • 305 Neasden Lane, London NW10 1QR, UK

Service Description

Biomarker: C4 Sample: BLOOD Results: 2 HRS Phlebotomy fee: £10.00 The C4 test measures the levels of complement component 4 in the blood. Complement component 4 (C4) is a protein involved in the complement system, which is part of the body's immune defence against infections. C4 deficiency is a rare genetic disorder characterized by low levels or dysfunctional complement component C4 in the blood. The symptoms of C4 deficiency can vary, but they may include: -- Recurrent infections: C4 deficiency can lead to a weakened immune system, making individuals more susceptible to bacterial infections, particularly respiratory and skin infections. -- Autoimmune diseases: C4 deficiency is associated with an increased risk of developing autoimmune conditions, such as systemic lupus erythematosus (SLE), immune complex glomerulonephritis, or vasculitis. -- Skin manifestations: Some individuals with C4 deficiency may experience skin symptoms, including rashes, hives (urticaria), or other skin manifestations related to immune dysregulation. -- Joint pain and swelling: Arthritis-like symptoms, such as joint pain, swelling, and stiffness, can occur in individuals with C4 deficiency. -- Kidney problems: C4 deficiency can contribute to the development of kidney diseases, including glomerulonephritis, which may lead to symptoms such as blood or protein in the urine, oedema, and high blood pressure. --Photosensitivity: Sensitivity to sunlight or other sources of ultraviolet (UV) radiation, resulting in skin rashes or other symptoms upon exposure.

Cancellation Policy

To cancel or schedule, please contact us 24 hours in advance

Contact Details

  • 305 Neasden Lane, London NW10 1QR, UK


bottom of page