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What is C-Reactive Protein

C-Reactive Protein is a protein that is produced in the liver. When inflammation is present in your body then this protein level rises. High levels of CRP are caused by infections and many long-term diseases. Many types of arthritis cause inflammation through out the body. The c-reactive protein test measures the amount of this protein in the body. While this test shows that there is inflammation in the body it can not show where it is located.

The C-reactive protein test is used to help diagnose

  • Diseases of the immune system, such as lupus.
  • Giant cell arteritis
  • Cancer of the lymph nodes
  • Painful swelling of the tissues that line the joints
  • Inflammatory bowel disease
  • Infections in a bone or bones

There is a special type of this test called a high-sensitivity C-reactive protein test. This test is used to determine if you are at higher risk of a heart attack. It measures the amount of inflammation in blood vessels.







This web site is intended for your own informational purposes only. No person or entity associated with this web site purports to be engaging in the practice of medicine through this medium. The information you receive is not intended as a substitute for the advice of a physician or other health care professional. If you have an illness or medical problem, contact your health care provider.

Arthritis can develop as a result of an infection. For example, bacteria that cause gonorrhea or Lyme disease can cause arthritis. Infectious arthritis can cause serious damage, but usually clears up completely with antibiotics. Scleroderma is a systemic disease that involves the skin, but may include problems with blood vessels, joints, and internal organs. Fibromyalgia syndrome is soft-tissue rheumatism that doesn't lead to joint deformity, but affects an estimated 5 million Americans, mostly women. The approximate number of cases in the United States of some common forms of arthritis. is an informational out reach of the Consumer Health Information Network. It is our goal to provide up to date information about arthritis and other inflammatory and bone conditions in a easy to understand format.

Where we get our information.

Most of the information in the site is compiled by editors from information provided by the National Institutes of Health. We are in the process of updating our pages. In the past we have not made reference to the source for information provide by our editors. In the next few weeks we hope to have all our pages marked as to the source.

We have included information from the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Pages that uses information from this source are so acknowledged.

We have contributing authors that send information. Where information is provided by an outside author it is acknowledged by a byline under the title.

Updates of Pages.

Not all of our pages have a date as to the last update. We are in the processes of reviewing all our pages and as we do we include a reference as to when the page was updated. This web site was first published in January of 2003. All pages in the site were created at sometime during or after that time.