Table 1 Differences between vesicular and mechanical breath sounds
From: Can normal breath sounds in mechanically ventilated patients be termed vesicular?
S. no. | Characteristic | Vesicular breath sounds | Mechanical breath sounds |
|---|---|---|---|
1 | Intensity | Soft | Harsh |
2 | Flow pattern | Sinusoidal | Descending ramp, square wave |
3 | Pitch | Low-pitched | High-pitched |
4 | Inspiration-to-expiration ratio | 2:1 | 1:2 |
5 | Pause between inspiration and expiration | No | Usually set on a ventilator (inspiratory pause) |
6 | Inspiratory flow rates | 20–30 L/min | 45-60L/min |