Arterial blood gas values and comfort scores at different settings
| Baseline | HFOT 20 (closed) | HFOT 30 (closed) | NIV | |
|---|---|---|---|---|
| pH | 7.40±0.03 | 7.42±0.04 | 7.43±0.04 | 7.44±0.04 |
| PaCO2 (mm Hg) | 61.2±9.2 | 57.2±11.7 | 55.7±10.6 | 55.2±11.9 |
| PaO2 (mm Hg) | 70.6±12.6 | 70.3±17.3 | 61.5±11.1 | 83.3±33.2 |
| Comfort score | 7 (5–8) | 5.5 (5–8) | 5.5 (2–8) | 5 (3–5) |
Data are presented as mean±SD unless indicated otherwise.
Comfort score was assessed with a scale where 0 is the worst comfort and 10 the best. The data are presented as the median (interquartile 25–75).
HFOT, high flow oxygen therapy; NIV, non-invasive ventilation.