: n W" c- e: p Y/ Y* ^1) : L- l% n! }0 ^0 U5 F- n" j http://www.webmd.com/a-to-z-guides/c-reactive-protein-crp ) {& k0 ^- J9 N$ f \# A。。。。。。; l3 Q7 C: Q7 z3 m. Y% R7 j
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. " J4 ~1 v6 Z H5 b1 Q' S: {. R4 D2 Q& K9 H, g5 s' a E: V! o
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. " E) f4 G4 }7 j$ j4 ~7 C& q* i6 y# K" g E( X" K) C
Why It Is Done8 i2 U4 d p( x
% f- ]9 c6 j% k9 ~A C-reactive protein (CRP) test is done to:& o S5 G" f2 c6 I5 H- d p# s2 t
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:: I1 @1 `0 `3 J6 Q. `& _
Cancer of the lymph nodes (lymphoma).+ n- Z) E2 G) Z+ c& T: y+ |
Diseases of the immune system, such as lupus./ Y0 l' g* ~' Z: a- }4 {! s% _
Painful swelling of the blood vessels in the head and neck (giant cell arteritis). 1 n1 B4 J G9 w2 A/ _Painful swelling of the tissues that line the joints (rheumatoid arthritis).2 G, a' T. E2 _1 Z( |# y- ^; I
Swelling and bleeding of the intestines (inflammatory bowel disease). - C* S3 t. N# \: q j: M$ QInfection of a bone (osteomyelitis).) ], q/ D$ E& D2 v4 _