5.2 Important definitions
The graphic display of pressure, flow and
volume is visualized in waveforms. Modes of
ventilation directly affect flow, pressure and
volume patterns.
5.2.1 Volume Control
P
1
2
3
4
5
6
t
t
8
10
11
12
13
14
15
16
t
xy z
I:E
9
7
X. Inspiration time
Y. Pause time
Z. Expiration time
Pressure-time waveform
1. Start of Inspiration
2. Peak inspiratory pressure
3. Early inspiratory pause pressure
4. End inspiratory pause pressure
5. Early expiratory pressure
6. End expiratory pressure
Flow-time waveform
7. Peak inspiratory flow
8. Zero flow phase
9. Peak expiratory flow
10. Slope decelerating expiratory limb
11. End expiratory flow
Volume-time waveform
12. Start of inspiration
13. The slope represents current delivery of
inspiratory tidal volume
14. End inspiration
15. The slope represents current patient
delivery of expiratory tidal volume
16. End expiration
54
SERVO-s VENTILATOR SYSTEM V8.0, User's Manual
| 5
| Ventilation, modes and functions |