W! I0 l* d7 @5 Q1) + u& `& r; @- {# K7 J# s' I& T5 T http://www.webmd.com/a-to-z-guides/c-reactive-protein-crp ! Z2 q0 Z" b5 J* _2 o s9 w. q。。。。。。* G; d8 H9 F4 D; Z' {
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.# `; a/ J4 S m% f6 h( ^
" i1 H) z; G% g3 K) N) E! X) OHigh 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.6 a. l) ]. q8 A) E+ r
) L% U- m) r2 @0 ?Why It Is Done5 B4 ]6 t$ s+ q5 ~; F& X
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A C-reactive protein (CRP) test is done to:. c( S* N x6 P6 Q
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: / X4 |' L% ^. ~( k) B7 x4 nCancer of the lymph nodes (lymphoma).& v) Z/ [' u& B' q
Diseases of the immune system, such as lupus. $ F/ K( K4 C/ i6 X/ e" X( gPainful swelling of the blood vessels in the head and neck (giant cell arteritis). ( @# u9 e$ a& s) z3 @: b) f- lPainful swelling of the tissues that line the joints (rheumatoid arthritis). / }! C0 P7 G% l8 zSwelling and bleeding of the intestines (inflammatory bowel disease).* o8 t4 d5 f1 P% P) w8 [
Infection of a bone (osteomyelitis). , X4 x! I; A/ r! J4 G9 H
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