Laboratory data at ICU admission and during ICU stay in 117 critically ill patients with COVID-19
| Variable | Laboratory data, median (IQR) | Reference |
|---|---|---|
| On admission to ICU | ||
| Leukocyte count, ×109/L | 8.1 (5.9–10.8) | 3.5–12.0 |
| Lymphocyte count, ×109/L | 0.8 (0.5–1) | 1.0–3.0 |
| Platelet count, ×109/L 215 | (161–271.5) | 150–400 |
| Serum creatinine level, μmol/L | 86 (70–114) | 50–110 |
| Total bilirubin level, μmol/L | 9 (6–14) | 3–22 |
| Direct bilirubin level, μmol/L | 3.5 (2–7) | 0–5 |
| Aspartate aminotransferase level, mU/mL | 63.5 (38–99) | 18–40 |
| Alanine aminotransferase level, mU/mL | 44 (27–88) | 17–63 |
| Lactate level, mmol/L | 1.5 (1.1–1.9) | 1–1.8 |
| First 3 days in ICU | ||
| Lowest platelet count, ×109/L | 190 (155–250) | 150–400 |
| Peak serum creatinine level, μmol/L | 101 (79–148) | 50–110 |
| Highest total bilirubin level, μmol/L | 10 (7–15) | 3–22 |
| Highest direct bilirubin level, μmol/L | 5 (3–9) | 0–5 |
| Highest d-dimer concentration, μg/L | 1560 (740–4000) | 0–229 |
| Highest ferritin level, ng/mL | 1125 (637–2058) | 15–400 |
| Highest C-reactive protein level, mg/L | 148 (87–232) | 0–10 |
| Highest creatine kinase level, U/L | 119 (49–255) | 25–200 |
| Highest troponin I level, ng/L | 15 (7–40) | < 26 |
| Highest troponin T level, ng/L | 0.02 (0.02–0.08) | 0–0.4 |
Note: COVID-19 = coronavirus disease 2019, ICU = intensive care unit, IQR = interquartile range.