D2 k8 E" a* |- D5 E1) 4 m) a; X' Y2 L" z1 [0 \; s3 s http://www.webmd.com/a-to-z-guides/c-reactive-protein-crp , G( V9 ?" o( h$ Q" G; R。。。。。。; G0 |& L, t2 o6 h
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. 0 `5 l* s& `; [; V! ]) d8 ^( ~! Z* Z$ N: y9 y1 c3 \
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. t, L) I4 @& p3 c
, U" q7 l8 V s7 IWhy It Is Done' t+ ^/ l$ E/ V
" U2 X. R" }( c% m- W/ _0 T" I$ \1 GA C-reactive protein (CRP) test is done to:% N5 C9 C2 q: b- U& S
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:! d6 `. {1 U0 o. N+ u" w
Cancer of the lymph nodes (lymphoma).% b$ O+ Q. x0 O" A' b: }$ h
Diseases of the immune system, such as lupus.+ W2 h+ `5 [6 E9 c/ M* O
Painful swelling of the blood vessels in the head and neck (giant cell arteritis). 3 d* a) q- @: f. W& MPainful swelling of the tissues that line the joints (rheumatoid arthritis).5 l: [( }8 i& i* i- U; O3 x
Swelling and bleeding of the intestines (inflammatory bowel disease). ; { C% {1 }8 G$ tInfection of a bone (osteomyelitis). : i2 b4 _: K2 _6 w) s) T