Table 1. Changes in laboratory values of the patient and reference ranges
| Variable | Hospital day | Reference ranges |
| 1st day | 3rd day | 4th day | 6th day |
| WBC (× 103/mm3) | 13.3 | 14.3 | 14.0 | 14.4 | 6−14.5 |
| Hemoglobin (g/dL) | 9.8 | 8.2 | 8.3 | 9.1 | 10.5−13.5 |
| Segmental neutrophil (%) | 41.4 | 58.3 | 32.9 | 30.7 | 35−74 |
| Lymphocyte (%) | 44.2 | 29.5 | 58.5 | 59.1 | 20−51 |
| Platelet (× 103/mm3) | 433.0 | 438.0 | 411.0 | 544.0 | 140−440 |
| Total protein (g/dL) | 5.8 | 5.4 | 5.7 | 7.1 | 6.7−8.0 |
| Albumin (g/dL) | 3.8 | 2.2 | 2.4 | 3.1 | 4.0−5.0 |
| Total bilirubin (mg/dL) | 0.2 | < 0.1 | 0.1 | 0.2 | ~1.2 |
| AST (U/L) | 28.0 | 17.0 | 18.0 | 22.0 | 0−31 |
| ALT (U/L) | 14.0 | 10.0 | 10.0 | 8.0 | 0−31 |
| Na (mmol/L) | 138.0 | 132.0 | 134.0 | 133.0 | 138−145 |
| K (mmol/L) | 5.3 | 5.4 | 5.3 | 5.6 | 3.5−5.1 |
| Cl (mmol/L) | 108.0 | 112.0 | 113.0 | 105.0 | 98−107 |
| CRP (mg/dL) | 10.7 | 16.6 | 7.1 | 1.9 | ~0.3 |
| Procalcitonin (ng/mL) | | 39.5 | 9.7 | 1.8 | ~0.5 |
| Pro-BNP (pg/mL) | 2,106.0 | | | | ~400 |
| Ferritin (ng/mL) | | 271.0 | | | 30−400 |
WBC: white blood cell count; AST: aspartate aminotransferase; ALT: alanine aminotransferase; CRP: C-reactive protein; pro-BNP: pro-brain natriuretic peptide.