) J9 d* C u8 Z* O9 |1) ! A0 X& k" J# K) } http://www.webmd.com/a-to-z-guides/c-reactive-protein-crp9 q1 h) o8 a) y$ e9 X/ q
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A C-reactive protein (CRP) test is a blood test that measures the amount of a protein called C-reactive protein in your blood. C-reactive protein measures general levels of inflammation in your body.4 g4 \3 p0 y5 U# T5 ^
0 r; [8 j0 \- z) D( S; _" [High levels of CRP are caused by infections and many long-term diseases. But a CRP test cannot show where the inflammation is located or what is causing it. Other tests are needed to find the cause and location of the inflammation. : j3 f) J7 L2 ?- z/ a + H7 @) J+ {0 F$ k7 HWhy It Is Done # P4 w3 F1 X' b0 V6 b" D" d 1 j8 s5 i3 p! T* ^8 f$ y7 KA C-reactive protein (CRP) test is done to:) v4 y8 T2 P4 H' Y6 ?0 w: N
Check for infection after surgery. CRP levels normally rise within 2 to 6 hours of surgery and then go down by the third day after surgery. If CRP levels stay elevated 3 days after surgery, an infection may be present.
Identify and keep track of infections and diseases that cause inflammation, such as:* q* X( r) D5 \* R
Cancer of the lymph nodes (lymphoma). 3 d G5 [3 q: I. z" w0 |Diseases of the immune system, such as lupus.& z; T3 [: _* M0 P& W i1 w$ f
Painful swelling of the blood vessels in the head and neck (giant cell arteritis). u) _# Y+ P6 p8 |8 f+ W4 {. M3 c2 Y4 MPainful swelling of the tissues that line the joints (rheumatoid arthritis).2 R8 g# @& m; M9 [& q: r
Swelling and bleeding of the intestines (inflammatory bowel disease).& P l) k# Z/ ]7 g9 e9 c
Infection of a bone (osteomyelitis).7 k2 E. y2 L7 V# K. R; s: |* H" q