Laboratory results demonstrated white blood cell count 6,300/μL (normal: 4,000–11,000/μL), C-reactive protein (CRP) 36 mg/L (normal: <10 mg/L), erythrocyte sedimentation rate (ESR) 90 mm/Hr (normal: <20 mm/Hr), and procalcitonin 1.6 ng/mL (normal: <0.5 ng/mL), compatible with infection. Here, CRP is linked to infection.