Skip to content

Lupus Health Center

Font Size

Complement Test for Lupus - Topic Overview

A complement test uses a blood sample to detect a group of proteins that help the body attack foreign substances.

When there are a lot of foreign substances in the body, such as bacteria or viruses, a low level of complement means the body is trying to get rid of the foreign substances. If the body is attacking its own tissues instead of foreign substances (as in autoimmune diseases such as lupus), a low level of complement may mean that the body is attacking and damaging tissues such as the kidneys.

Recommended Related to Lupus

Lupus, Sex, and Relationships

The chronic pain and fatigue associated with lupus can affect more than your health; many patients find that their condition interferes with their sexual relationships, as well. Reasons for that include lupus flare-ups, pain, fatigue, side effects from medication, and self-image issues. And that's on top of the day-to-day responsibilities that come with having a chronic illness, as well as the routine tasks of life. But don't give up on your sex life. There are things you can do to make it more...

Read the Lupus, Sex, and Relationships article > >

The complement test can be repeated at regular intervals. This helps monitor the progress of the disease.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: May 10, 2012
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    1
    Next Article:

    Complement Test for Lupus Topics

    Today on WebMD

    grocery shopping list
    And the memory problems that may come with it.
    Lupus rash on nails
    A detailed, visual guide.
     
    sunburst filtering through leaves
    You might be extra sensitive to UV light. Read on.
    fruit drinks
    For better focus in your life.
     
    Woman rubbing shoulder
    Slideshow
    Bag of cosmetics
    Video
     
    young woman hiding face
    Quiz
    pregnant woman
    Article
     
    5 Lupus Risk Factors
    Article
    Young adult couple
    Article
     
    doctor advising patient
    Article
    sticky notes on face
    Video
     

    WebMD Special Sections