Application of Procalcitonin Test in Lower Respiratory Tract Infection / 中华医院感染学杂志

ABSTRACT

OBJECTIVE To evaluate the diagnosis value of the procalcitonin(PCT) test in the lower respiratory tract infection(LRTI),and to provide the application of PCT in the bacterial infectious disease.METHODS Procalcitonin concentrations were measured using the quantitative immunofluorescence test in 93 patients and the results were compared with the levels of C-reactive protein(CRP) and white blood cell count(WBC).Samples were collected and divided into 2 groups,one including 63 cases(bacterial infected group) the other including 30 cases(non-bacterial infected group) corresponding to their clinical diagnosis(temperature,heart rate,bacteremia culture,CRP,WBC count).RESULTS The levels of PCT in bacterial infected group were significantly higher than in non-bacterial infected group(P