C-Reactive protein (CRP) Overview
- CRP increases in cases of inflammation, the test is ordered when acute inflammation is a risk (such as from an infection after surgery) or suspected based on patient symptoms. It is also ordered to help evaluate conditions, such as rheumatoid arthritis and lupus. The test may be repeated to determine whether treatment of an inflammatory disease is effective since CRP levels drop as inflammation subsides. CRP also is used to monitor wound healing and to monitor patients who have surgical cuts (incisions), organ transplants, or burns as an early detection system for possible infections.
- A high or increasing amount of CRP in your blood suggests that you have an acute infection or inflammation. In a healthy person, CRP is usually less than 10 mg/L. Most infections and inflammations result in CRP levels above 100 mg/L.
- If the CRP level in your blood drops, it means that you are getting better and inflammation is being reduced.
- When your results fall below 10 mg/L, you no longer have clinically active inflammation