Table 1.
Nitric oxide and oxygen flow (in liters/minute) were set to obtain a desired NO inspiratory concentration (50, 150, and 250 ppm) at a desired FiO2. We set medical air flow at 15 Liters/min in every setting. We used two different tanks with different NO concentrations (800 and 857 ppm).
|
NO/N2tank concentration = 800 ppm | ||||
|---|---|---|---|---|
| NO (ppm) | NO2 (ppm) | NO flow (L/min) | O2 flow (L/min) | |
| FiO2 = 0.21 | 49 | 0.13 | 1 | 0.36 |
| 145.5 | 0.72 | 3.46 | 1.11 | |
| 249.5 | 1.57 | 6.99 | 2.10 | |
| FiO2 = 0.30 | 48.5 | 0.18 | 1.2 | 3.50 |
| 140 | 0.97 | 4.25 | 4.82 | |
| 250 | 2.35 | 9.10 | 7.30 | |
| FiO2 = 0.41 | 48 | 0.18 | 1.40 | 7.12 |
| 145 | 1.17 | 5.08 | 10.20 | |
| 241.5 |
2.61 |
11.91 |
17.40 |
|
| NO/N2 tank concentration = 857 ppm | ||||
| NO (ppm) |
NO2 (ppm) |
NO flow (L/min) |
O2 flow (L/min) |
|
| FiO2 = 0.21 | 47.50 | 0.24 | 0.92 | 0.58 |
| 143.50 | 0.77 | 3.07 | 1.16 | |
| 237.50 | 1.98 | 6.18 | 2.37 | |
| FiO2 = 0.30 | 49 | 0.26 | 1.05 | 3.46 |
| 143 | 1.24 | 3.84 | 5.40 | |
| 253 | 2.79 | 7.66 | 7.22 | |
| FiO2 = 0.42 | 40 | 0.29 | 1.22 | 8.48 |
| 142 | 1.40 | 4.48 | 10.74 | |
| 236 | 3.11 | 10.05 | 15.70 | |