Arterial blood gas trends during acute admission
| ABG on admission (FiO2 0.35) | ABG at 2 hours (FiO2 0.35) | ABG at 5 hours (FiO2 0.28) | |
|---|---|---|---|
| pH (7.35–7.45)a | 7.45 | 7.31 | 7.45 |
| PaO2 (11.0–14.0 kPa)a | 13.4 | 14.8 | 12.1 |
| PaCO2 (4.5–6.0 kPa)a | 3.3 | 3.6 | 3.8 |
| Base excess (−2.0–2.0)a | −4.3 | −11.1 | −3.4 |
| Lactate (0.5–1.6 mmol/L)a | 1.4 | 6.8 | 2.0 |
↵a= standard values may alter slightly between analysers; ABG = arterial blood gas.