CRP and Sepsis: There have been continuous attempts to diagnosis of SIRS, sepsis, and severe sepsis using biomarkers, especially procalcitonin (PCT), C‐reactive protein (CRP), white blood cell (WBC), erythrocyte sedimentation rate (ESR), and various interleukins.6, 7, 8 PCT and biomarkers are debated for the usefulness and clinical application, but the previous literatures revealed that PCT could support the clinical diagnosis and treatment of patients.