1 \% S* ^8 g1 V* K( {1) 6 t. Z A( z) l* l, d% ? http://www.webmd.com/a-to-z-guides/c-reactive-protein-crp ) H1 M! s y; y- U' |) n5 ~! W。。。。。。! I8 M4 J0 I* A
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. i0 S7 ]% L; v# w' n+ n( D# w3 J, w+ m7 U
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.' W F, b% B% E/ N3 M9 w$ x2 F( |, }
P. J8 W6 S' I' IWhy It Is Done 5 h8 L5 U, n' p 7 \' e% o4 ^& \- @/ X1 {0 k5 FA C-reactive protein (CRP) test is done to: * A3 b3 l! n k, z7 w
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:6 ], V5 z0 k W
Cancer of the lymph nodes (lymphoma). 2 f0 L4 @" p1 NDiseases of the immune system, such as lupus.- t" A4 l4 j, g
Painful swelling of the blood vessels in the head and neck (giant cell arteritis). 7 U& G) Z) L8 A- e# w* `Painful swelling of the tissues that line the joints (rheumatoid arthritis). \7 D0 F; k/ h; S1 x
Swelling and bleeding of the intestines (inflammatory bowel disease). 8 c% w( z& T& ^Infection of a bone (osteomyelitis). / R( q6 H: P3 g- W* y5 h6 ]0 r