CRP and Increased total leukocyte count: Upon admission, laboratory tests revealed leukocytosis at 13.4 × 103/μL (reference: 4.5–11.0 × 103/μL), neutrophilia with neutrophils at 78.9% (reference: 40–70%), markedly elevated C-reactive protein (CRP) at 62.24 mg/L (reference: < 5.0 mg/L), and an elevated d-dimer level of 1509 ng/mL fibrinogen equivalent units (FEU; reference: < 500 ng/mL FEU).