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| Clinical Value of WBC CRP and PCT in Children with Respiratory Tract Infection Caused by Different Pathogens |
| LIU Xiaoqiao, et al |
| The Central People's Hospital of Yichang, Hubei Yichang 443000, China |
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Abstract Objective: To observe the clinical variety of white blood cell count (WBC), C-reactive protein (CRP) and procalcitonin (PCT) of different pathogens causing respiratory infection in children. Methods: 157 cases of children of respiratory infections in our hospital were chose from January 2015 to May 2016, according to different pathogens, divided into bacteria group, viruses group and mycoplasma group, according to different staining of bacteria groups, divided group G+ and group G-. Analysis of the WBC, CRP and PCT test results and the change of each group before and after the treatment was conducted; a preliminary classification of etiology diagnosis basis was provided. Results: The WBC, CRP and PCT in found bacteria group were significantly increased the mycoplasma group and virus group (P < 0.05), while the WBC, CRP and PCT between virus group and mycoplasma group were no significant difference. WBC and CRP on group G+ and G- group, there was no significant difference (P > 0.05), but PCT on G+ group is significantly increased than G- group (P < 0.05). Diagnosis accuracy rate of PCT on children respiratory tract bacterial infection is significantly higher than the WBC and CRP (P < 0.05). The diagnosis of respiratory tract bacterial infection in children by PCT had high specificity and low false positive rate. Conclusion: The WBC, CRP and PCT test can preliminary judgment different pathogens to children respiratory infection, for bacterial infections, the diagnostic value of PCT is superior to the WBC and CRP.
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2017, Vol. 23 
