International Journal of Clinical Research

Objective To explore the clinical value of serum procalcitonin (PCT) and C-reactive protein (CRP) detection in the treatment of elderly pneumonia patients. Methods Sixty elderly pneumonia patients admitted to our hospital from December 2024 to December 2025 were selected as the study group, and 60 healthy elderly examinees were selected as the control group during the same period. The immediate serum PCT and CRP levels were measured in both groups, and the serum PCT and CRP levels were compared between the study group and the control group, as well as between elderly pneumonia patients with different degrees of disease severity. Results The levels of PCT and CRP in the study group were higher than those in the control group immediately; The serum PCT and CRP levels in the severe group of elderly pneumonia were higher than those in the moderate and mild groups; The moderate group was higher than the mild group (P<0.05). Conclusion Serum PCT and CRP can effectively evaluate the severity of elderly pneumonia, intuitively reflect the clinical treatment effect, and provide objective basis for adjusting treatment plans. The combined detection of the two can improve the accuracy of diagnosis and efficacy judgment, and has clinical application value.

Elderly pneumonia; Procalcitonin; C-reactive protein; Disease assessment; Efficacy monitoring