Table 4 Variables on departure and arrival
From: Quality of interhospital transport of critically ill patients: a prospective audit
Variable | Departure (mean ± SD) | Arrival (mean ± SD) | Arrival (min–max) | Critical threshold | Beyond threshold on departure (%) | Beyond threshold during transport (%) | Beyond threshold on arrival (%) | P |
|---|---|---|---|---|---|---|---|---|
Arterial pH | 7.35 ± 0.17 | 7.36 ± 0.13 | 6.98–7.57 | <7.20 | 7 | - | 13 | 0.18 |
Oxygen saturation (%) | 94.2 ± 7.0 | 93.9 ± 7.3 | 68–100 | <90 | 13 | 20 | 16 | 0.58 |
PCO2 (kPa) | 13.5 ± 9.9 | 18.3 ± 14.7 | 4.30–71.8 | <8 | 12 | - | 16 | 0.45 |
PCO2 (kPa) | 5.6 ± 1.8 | 5.9 ± 2.3 | 2.80–12.91 | >6.0 | 35 | - | 35 | 1.00 |
SBP (mmHg) | 120.8 ± 22.8 | 126.9 ± 30 | 60–210 | <90, >180 | 7, 0 | 14, 3 | 11, 3 | 0.09 |
DBP (mmHg) | 64.4 ± 15.9 | 68.43 ± 18.4 | 37–145 | <50, >110 | 14, 1 | 14, 3 | 14, 2 | 1.00 |
Heart rate (beats/min) | 103.5 ± 23.8 | 103.9 ± 23.3 | 50–160 | <50, >120 | 0, 30 | 2, 31 | 0, 28 | 0.82 |
Temperature (°C) | 37.7 ± 1.3 | 37.04 ± 1.3 | 32.0–40.4 | <36.0 | 8 | - | 12 | 0.29 |
Lactate (mmol/l) | 1.9 ± 2.5 | 2.1 ± 1.9 | 0.6–13.2 | >3.0 | 10 | - | 8 | 1.00 |
Haemoglobin (mmol/l; g/dl × 1.6) | 6.9 ± 1.5 | 6.6 ± 1.4 | 3.4–10.0 | <5.0 | 6 | - | 11 | 0.06 |
Glucose (mmol/l) | 9.0 ± 5.0 | 7.9 ± 4.3 | 3.4–25.5 | <4.0, >12.0 | 15 | - | 15 | 1.00 |
HCO3-(mmol/l) | 23.2 ± 6.3 | 23.9 ± 7.0 | 5.1–44.0 | <20 | 36 | - | 28 | 0.09 |