CRP and ischemic stroke: In this study, the comparison of routine blood, blood glucose, blood pressure, and inflammatory indexes between groups A and B revealed that the values of HBA1C, Lp‐PLA2, CRP, CysC, Hcy, TNF‐α, N, and NLR were higher in group B than in group A. These factors have been found to be the risk of unstable carotid plaque in patients with ischemic stroke.