C-reactive Protein(CRP)and Procalcitonin(PCT)Combined Testing in the Diagnosis of Elderly Patients with Bacterial Pneumonia  

作　　者：Bingzhi Li 

机构地区：[1]Daqing Third Hospital,Daqing 163712,Heilongjiang Province,China

出　　处：《Journal of Clinical and Nursing Research》2025年第1期299-304,共6页临床护理研究(英文)

摘　　要：Objective:To analyze the diagnostic value of combined testing of C-reactive protein(CRP)and procalcitonin(PCT)in elderly patients with bacterial pneumonia.Methods:This study included 50 elderly patients with bacterial pneumonia as the observation group and 50 patients with non-bacterial pneumonia as the control group,recruited from May 2022 to October 2023.Fasting venous blood samples were collected in the morning from all 100 participants.CRP levels were measured using a fully automated biochemical analyzer,while PCT levels were detected using the immunoturbidimetric luminescence method.Results:CRP and PCT levels were significantly higher in bacterial pneumonia patients[(98.25±11.59)mg/L and(3.57±1.35)μg/L,respectively]compared to the control group[(5.55±2.78)mg/L and(0.25±0.12)μg/L,respectively],with significant intergroup differences(P<0.05).Patients with severe bacterial pneumonia exhibited higher serum CRP and PCT levels compared to those with moderate or mild disease(P<0.05).The combined testing of CRP and PCT showed higher sensitivity and specificity than individual tests.In the observation group,CRP and PCT levels significantly decreased after treatment compared to pre-treatment levels.Conclusion:The combination of CRP and PCT testing provides high diagnostic accuracy for bacterial pneumonia in elderly patients.It effectively differentiates bacterial from non-bacterial infections,offering valuable data to guide clinical treatment.

关 键 词：C-reactive protein(CRP) Procalcitonin(PCT) Combined testing Elderly bacterial pneumonia 

分 类 号：R56[医药卫生—呼吸系统]