Table 1.
Laboratory findings
| CBC | WBC | 2200/µL ↓ |
| Band | 5.0% | |
| Seg | 46.5% | |
| Ly | 26.5% | |
| Mono | 22.0% ↑ | |
| RBC | 111隆脕104/µL ↓ | |
| Hb | 4.4 g/dL ↓ | |
| Ht | 12.6% ↓ | |
| MCV | 113.5 fl ↑ | |
| MCH | 40.2 pg ↑ | |
| Plt | 17.8隆脕104/µL ↓ | |
| Reti | 0.1% ↓ | |
| Coagulation profile | PT activity | 84% |
| APTT | 38.0 sec | |
| Fbg | 244 mg/dL | |
| FDP | ≤5.0 µg/mL | |
| Urinalysis | No abnormalities | |
| Biochemistry | TP | 5.1 g/dL ↓ |
| Alb | 3.3 g/dL ↓ | |
| AST | 35 IU/L ↑ | |
| ALT | 17 IU/L | |
| LDH | 341 IU/L ↑ | |
| γ-GTP | 63 IU/L ↑ | |
| T-Bil | 2.2 mg/dL ↑ | |
| D-Bil | 0.8 mg/dL ↑ | |
| BUN | 18 mg/dL | |
| Cr | 0.90 mg/dL | |
| Ferritin | 1698.6 mg/dL ↑ | |
| Immuno-serological findings | IgG | 792 mg/dL ↓ |
| IgA | 124 mg/dL | |
| IgM | 33 mg/dL ↓ | |
| Antinuclear antibodies | <x40 | |
| C3 | 51 mg/dL ↓ | |
| C4 | 8 mg/dL ↓ | |
| Direct Coombs | Positive ↑ | |
| Indirect Coombs | Positive ↑ | |
| Cold agglutinins | x256 | |
| Haptoglobin | ≤10 mg/dL↓ | |
| Human parvovirus B19 IgM antibody index | 2.79 ↑ | |
| Human parvovirus B19 IgG antibody index | 8.11 ↑ | |
| Human parvovirus B19 DNA qualitative analysis (PCR) | Positive | |
| Others | HIV antibodies | Negative |
| Erythropoietin | 2040 mU/m ↑ | |
| Anti-erythropoietin antibodies | 580 ng/mL (cut point, 223) | |
| IL-6 | 2.9 pg/mL | |
| CD4 | 227.6/µL ↓ | |
| Ferritin | 1698.6 ng/mL ↑ | |
“↑ and ↓ indicate values higher and lower than normal ranges, respectively. Normal ranges are shown in parentheses.”