Biological results from blood samples drawn at the time of computed tomography pulmonary angiography
| Patients (n1/n2) | All | Patients without PE (n1) | Patients with PE (n2) | p-value | |
| Haemostasis | |||||
| D-dimers ng·mL−1 | 122 (80/42) | 1920 (1068–4020) | 1310 (800–2335) | 5364 (2928–12 275) | <0.001 |
| Complete blood count | |||||
| Leukocytes ×109 cells·L−1 | 152 (112/40) | 7.45 (5.80–10.20) | 6.70 (5.53–9.48) | 8.92 (6.55–13.85) | 0.002 |
| Lymphocytes ×109 cells·L−1 | 59 (49/10) | 1.00±0.43 | 0.94±0.42 | 1.28±0.38 | 0.023 |
| Haemoglobin g·dL−1 | 153 (113/40) | 12.45±2.17 | 12.65±2.11 | 11.89±2.24 | 0.056 |
| Platelet count ×109 cells·L−1 | 153 (113/40) | 266 (201.5–391) | 246 (188–387) | 343 (247–397) | 0.006 |
| Biochemistry | |||||
| Procalcitonin ng·mL−1 | 102 (76/26) | 0.23 (0.13–0.42) | 0.26 (0.13–0.43) | 0.17 (0.13–0.27) | 0.130 |
| Bicarbonates mmol·L−1 | 159 (116/43) | 24.00 (21.70–27.40) | 23.55 (21.20–25.90) | 26.60 (23.60–32.00) | <0.001 |
| Urea mmol·L−1 | 158 (115/43) | 5.90 (4.48–9.43) | 5.70 (4.20–7.90) | 8.90 (5.10–13.50) | 0.001 |
| Creatininaemia µmol·L−1 | 157 (115/42) | 71 (57–90) | 72 (58–90) | 70 (52–87) | 0.754 |
| ASAT IU·L−1 | 135 (98/37) | 46 (34–69) | 44 (34–67) | 53 (39–72) | 0.194 |
| ALAT IU·L−1 | 147 (110/37) | 37 (24–58) | 36 (23–53) | 54 (30–76) | 0.010 |
| γ-Glutamyl transferase IU·L−1 | 130 (92/38) | 91 (45–192) | 79 (40–146) | 160 (78–273) | 0.002 |
| Alkaline phosphatase IU·L−1 | 130 (92/38) | 100 (68–160) | 84 (66–135) | 131 (82–248) | 0.005 |
| C-reactive protein mg·L−1 | 158 (114/44) | 115 (69–196) | 114 (66–193) | 121 (72–198) | 0.861 |
| Troponin Ic µg·L−1 | 154 (111/43) | 0.010 (0.010–0.040) | 0.010 (0.005–0.034) | 0.018 (0.010–0.230) | 0.003 |
| BNP ng·mL−1 | 150 (112/38) | 36 (12–104) | 35 (12–91) | 43 (13–189) | 0.410 |
| Blood gas | |||||
| pH | 115 (76/39) | 7.45 (7.40–7.49) | 7.45 (7.40–7.49) | 7.44 (7.40–7.49) | 0.859 |
| PaCO2 kPa | 115 (76/39) | 4.71 (4.24–6.81) | 4.67 (4.18–5.62) | 5.96 (4.45–7.44) | 0.021 |
| PaO2 kPa | 115 (76/39) | 10.20 (8.80–12.35) | 9.95 (8.70–11.70) | 10.60 (8.80–13.10) | 0.268 |
| Lactates mmol·L−1 | 115 (76/39) | 1.40 (1.20–1.70) | 1.40 (1.20–1.70) | 1.30 (1.10–1.60) | 0.198 |
Data are presented as n, mean±sd or median (interquartile range), unless otherwise stated. PE: pulmonary embolism; ASAT: aspartate aminotransferase; ALAT: alanine aminotransferase; BNP: brain natriuretic peptide; PaCO2: arterial carbon dioxide tension; PaO2: arterial oxygen tension.