Table 1.
Laboratory test result during and after hospitalization.
| Laboratory results | Admission | Discharge | Follow-up 1 (1 week after discharge) | Follow-up 2 (3 weeks after discharge) | Reference range |
|---|---|---|---|---|---|
| WBC (×109/L) | 3.5 | 9.0 | 11.4 | 12.2 | 3.6–10.6 |
| Neutrophils (%) | 27 | 93 | 86 | 90 | |
| Lymphocytes (%) | 68 | 7 | 10 | 8 | |
| Monocytes (%) | 3 | 0 | 4 | 1 | |
| Eosinophils (%) | 0 | 0 | 0 | 1 | |
| Basophils (%) | 0 | 0 | 0 | 0 | |
| Myelocytes (%) | 2 | ||||
| Absolute neutrophils (×109/L) | 0.9 | 8.4 | 9.6 | 11.2 | 1.7–7.0 |
| Absolute lymphocytes (×109/L) | 2.2 | 0.6 | 1.1 | 1.0 | 1–3.2 |
| Absolute monocytes (×109/L) | 0.1 | 0 | 0.4 | 0.1 | 0.1–1.3 |
| Absolute eosinophils (×109/L) | 0 | 0 | 0 | 0.1 | 0.0–0.3 |
| Absolute basophils (×109/L) | 0 | 0 | 0 | 0 | 0.0–0.2 |
| Absolute myelocytes (×109/L) | 0.1 | ||||
| Hemoglobin (g/dL) | 4.5 | 7.9 | 8.9 | 9.6 | 12–15 |
| Hematocrit (%) | 12.7 | 24.1 | 27.9 | 31.2 | 35–49 |
| MCV (fL) | 90 | 95 | 93 | 92 | 81–99 |
| RDW (%) | >40 | 39.6 | 29.2 | 21.6 | 11.5–14.5 |
| Platelets (×109/L) | 148 | 401 | 628 | 243 | 150–450 |
| Schistocytes | Few (1+) | Many (3+) | None seen | None seen | None |
| Polychromasia | Slight | Marked (3+) | Moderate (2+) | Slight | |
| Microcytes | Many (3+) | Moderate (2+) | Few (1+) | ||
| Macrocytes | Few (1+) | Moderate (2+) | Moderate (2+) | Few (1+) | |
| ALT (units/L) | 36 | 7–52 | |||
| AST (units/L) | 71 | 13–39 | |||
| Total bilirubin (mg/dL) | 2.1 | 0.5 | 0.0–1.0 | ||
| Indirect bilirubin (mg/dL) | 1.7 | 0.4 | 0.0–0.8 | ||
| LDH (units/L) | 4332 | 2628 | 540 | 257 | 140–271 |
| Haptoglobin (mg/dL) | <6 | <6 | 30–200 | ||
| Serum iron (μg/dL) | 95 | 50–212 | |||
| Iron saturation (%) | 41 | 15–55 | |||
| TIBC (μg/dL) | 231 | 250–400 | |||
| Ferritin (ng/mL) | 355.4 | 10–106 | |||
| Serum B12 level (pg/mL) | <50 | 200–1,000 | |||
| Serum folate (ng/mL) | >23.0 | >5.9 | |||
| Reticulocyte count (%) | 1.4 | 2.8 | 2.0 | 0.5–2.5 | |
| Absolute reticulocyte number (× 109/L) | 19.9 | 88.2 | 69.1 | 21–115 | |
| Gastric parietal cell IgG (units) | 18.8 | 0.0–24.9 | |||
| Intrinsic factor antibodies | Positive | Negative | |||
| Indirect Coombs' test | Positive | Negative | |||
| Direct Coombs' test | Positive IgG and C3 | Negative | |||
| Antibody ID | Warm autoantibodies | Negative | |||
| Antibody eluted | Eluate positive with all cells | ||||
| Coronavirus SARS-CoV-2 PCR | Not detected |