" N N3 d. D. R+ t1 n1 r0 E1) / x7 f9 _1 F6 v+ ^0 N- O ahttp://www.webmd.com/a-to-z-guides/c-reactive-protein-crp& ^2 H9 @3 K# e: b8 Y1 y! X( e
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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. 1 T6 m; ~ P, A! i 3 O, w$ X6 |& vHigh 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. 1 @( H/ Y2 P7 ^8 Z/ y6 D# j ( \0 W/ K l$ p8 u! PWhy It Is Done , i, f6 L& `$ Y9 g 2 Y+ a W* a) CA C-reactive protein (CRP) test is done to: % `/ J6 R0 b8 q+ ]- J7 \
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$ v0 |; h" `: _: W( I i
Cancer of the lymph nodes (lymphoma).% h( d. M( G0 S" Q/ k9 m) n
Diseases of the immune system, such as lupus.6 `: [2 s+ R. W& {4 `. t! |9 y
Painful swelling of the blood vessels in the head and neck (giant cell arteritis). * I2 X! q& n$ Q) cPainful swelling of the tissues that line the joints (rheumatoid arthritis). " v- Y/ H4 }) d) l/ m, |Swelling and bleeding of the intestines (inflammatory bowel disease). 3 x& p/ b, ~( ZInfection of a bone (osteomyelitis). 7 _5 Q' h. `% D, X! i