CRP and infection: In a study conducted by Zheng et al., the accuracy of inflammatory markers in diagnosing sepsis was compared within patients suffering from hospital-acquired pneumonia (HAP), and among those with no infection, the levels of PCT, CRP, NLR, and TLC were raised prominently in patients with HAP along with frequent admissions in ICUs and comorbidities, while the increased frequency of malignancies was suffered by patients with no infections.