Table 2 Measured FiO2 for varying tidal volume (Vt), respiratory rate (RR), I:E ratio (ti/te), and nasal cannula flow rate (QNC)
Vt (ml) | RR (/min) | ti/te | QNC (l/min) | FiO2 (%) |
|---|---|---|---|---|
17.1 | 65 | 1:1 | 0.5 | 36.9 ± 1.4 |
17.1 | 65 | 1:1 | 1.0 | 53.8 ± 3.1 |
17.1 | 65 | 1:1 | 2.0 | 81.1 ± 1.7 |
17.1 | 65 | 3:4 | 0.5 | 36.5 ± 1.6 |
17.1 | 65 | 3:4 | 1.0 | 50.7 ± 1.5 |
17.1 | 65 | 3:4 | 2.0 | 76.6 ± 0.5 |
26.8 | 65 | 1:1 | 0.5 | 30.6 ± 0.7 |
26.8 | 65 | 1:1 | 1.0 | 42.1 ± 2.3 |
26.8 | 65 | 1:1 | 2.0 | 62.6 ± 2.7 |
26.8 | 65 | 3:4 | 0.5 | 30.2 ± 0.7 |
26.8 | 65 | 3:4 | 1.0 | 40.7 ± 2.0 |
26.8 | 65 | 3:4 | 2.0 | 58.2 ± 0.7 |
36.6 | 65 | 1:1 | 0.5 | 28.0 ± 0.7 |
36.6 | 65 | 1:1 | 1.0 | 36.4 ± 1.9 |
36.6 | 65 | 1:1 | 2.0 | 53.4 ± 1.8 |
36.6 | 65 | 3:4 | 0.5 | 27.9 ± 0.5 |
36.6 | 65 | 3:4 | 1.0 | 35.9 ± 1.1 |
36.6 | 65 | 3:4 | 2.0 | 49.8 ± 1.0 |
17.1 | 50 | 1:1 | 0.5 | 41.0 ± 4.2 |
17.1 | 50 | 1:1 | 1.0 | 61.9 ± 2.5 |
17.1 | 50 | 1:1 | 2.0 | 88.6 ± 2.7 |
17.1 | 50 | 3:4 | 0.5 | 40.0 ± 0.8 |
17.1 | 50 | 3:4 | 1.0 | 67.6 ± 2.7 |
17.1 | 50 | 3:4 | 2.0 | 83.9 ± 3.2 |
26.8 | 50 | 1:1 | 0.5 | 36.5 ± 2.4 |
26.8 | 50 | 1:1 | 1.0 | 49.4 ± 2.3 |
26.8 | 50 | 1:1 | 2.0 | 72.4 ± 2.7 |
26.8 | 50 | 3:4 | 0.5 | 33.8 ± 1.1 |
26.8 | 50 | 3:4 | 1.0 | 44.8 ± 3.6 |
26.8 | 50 | 3:4 | 2.0 | 66.9 ± 2.4 |
36.6 | 50 | 1:1 | 0.5 | 32.5 ± 2.2 |
36.6 | 50 | 1:1 | 1.0 | 42.6 ± 1.5 |
36.6 | 50 | 1:1 | 2.0 | 59.8 ± 0.3 |
36.6 | 50 | 3:4 | 0.5 | 42.3 ± 2.8 |
36.6 | 50 | 3:4 | 1.0 | 30.3 ± 1.1 |
36.6 | 50 | 3:4 | 2.0 | 56.5 ± 2.1 |