Clinical investigation of C-reactive protein and erythrocyte sedimentation rate in old pulmonary infection patients

Objective To investigate the clinical application value of C-reactive protein(CRP)and erythrocyte sedimentation rate(ESR)in old pulmonary infection patients.Methods 500 old pulmonary infection patients were investigated in the study.CRP，ESR and white blood count(WBC)were measured on the 1St，3rd，5th，7th，14th day's morning.And clinical pulmonary infection score(CPIS)was measured on the 1st day of hospital entrance.Results①After therapy，all indexes descended obviously(P ESR.Conclusions Both CRP and ESR can be used to value the diagnosis and therapy in old pulmonary infection patients.CRP is helpful to identify the early infection and judge the severity of infection.And it can also reflect the therapeutic effect rapidly.CRP is a good index that has an obvious advantage than ESR and WBC. Key words: C-reactive protein; Erythrocyte sedimentation rate; Old patients; Pulmonary infection