CRP and Hyponatremia: Laboratory data on admission revealed normal white blood cells (7010/μL, 82% neutrophils, 7% lymphocytes), hematocrit 36.9%, hyponatremia (sodium (Na) 132 mmol/L), and elevated C-reactive protein (CRP) levels (25.22 mg/dL) and procalcitonin (2.56 ng/mL).