Saturday, February, 11, 2012

Complement component 3 (C3)

Table of Contents

Alternative Names

C3


Normal Values

The normal range is 75-135 mg/dl (milligrams per deciliter).

Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.


What abnormal results mean

Increased complement activity may be seen in:

  • Cancer
  • Ulcerative colitis

Decreased complement activity may be seen in:

  • Bacterial infections (especially Neisseria)
  • Cirrhosis
  • Glomerulonephritis
  • Hepatitis
  • Hereditary angioedema
  • Kidney transplant rejection
  • Lupus nephritis
  • Malnutrition
  • Systemic lupus erythematosus

Images

Review Date: 02/10/2011
Reviewed By: Michael E. Makover, MD, professor and attending in Rheumatology at the New York University Medical Center, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)