Table 4 Pre-calculated pressure differences between dynamic tracheal and dynamic global alveolar pressures for various set flows and measured resistances, as provided by the manufacturer
Measured total resistance (mbar/L/s) | Difference (mbar) Ptrachea vs Palveolar (Peaktrach > Peakalv and PEEPtrach < PEEPalv) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 50 | |||
Flow (L/s) | Flow (L/min) | ||||||||||
0.133 | = | 8 | 1 | 1 | 2 | 3 | 3 | 4 | 5 | 5 | 7 |
0.167 | = | 10 | 1 | 2 | 3 | 3 | 4 | 5 | 6 | 7 | 8 |
0.200 | = | 12 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 |
0.233 | = | 14 | 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 12 |
0.267 | = | 16 | 1 | 3 | 4 | 5 | 7 | 8 | 9 | 11 | 13 |
0.300 | = | 18 | 2 | 3 | 5 | 6 | 8 | 9 | 11 | 12 | 15 |
0.333 | = | 20 | 2 | 3 | 5 | 7 | 8 | 10 | 12 | 13 | 17 |