Concentrations of the blood biomarkers in patients with COVID-19
| Biomarkers | Normal range | Sample values (N, mean±SD) | Status |
| RBC (million counts per μL) | 4.7–6.1 (M), 4.2–5.4 (F) | 3.8±0.9 | Low |
| HB (g/L) | 135–175 (M), 12.0–15.5 (F) | 108±24 | Low |
| HCT (%) | 40–54.0 (M), 36.0–48.0 (F) | 31.8±7.0 | Low |
| CRP (mg/L) | 10.0 | 141.7±103.3 | Very high |
| WBC (μL) | 4500–11 000 | 15 364.8±15 240.2 | High |
| AST (U/L) | 5.0–40.0 | 70.0±70.6 | High |
| ALT (U/L) | 7.0–56.0 | 77.0±88.6 | High |
| LDH (U/L) | 140–280.0 | 477.3±203.5 | High |
The levels of the first three biomarkers are different in men and women, denoted by M and F, respectively.
ALT, alanine transaminase; AST, aspartate aminotransferase; CRP, C reactive protein; F, female; HB, haemoglobin; HCT, haematocrit; LDH, lactate dehydrogenase; M, male; RBC, red blood cell; WBC, white blood cell.