6-19
In DuoLevel under NIV, you need to set the following ventilation parameters:
1. [O2%]: Oxygen concentration
2. [Phigh]: High pressure
3. [Thigh]: Time of high pressure
4. [Plow]: Low pressure
5. [Tlow]: Time of low pressure
6. [Tslope]: Time of pressure rising
7. [Exp％]: Expiration trigger level
8. [△Psupp]: Pressure support level
9. [ΔPapnea]: Pressure of apnea ventilation
10. [fapnea]: Frequency of apnea ventilation
11. [F-Trig] or [P-Trig]: Inspiration trigger level
6.7.10 APRV
APRV is airway pressure release ventilation. It can be seen as periodical, short period airway
pressure release in CPAP mode.
The following figure shows typical waveform in APRV.
Paw
Time
Phigh
Tslope
Thigh
Plow
Tlow
In APRV under non-NIV, you need to set the following ventilation parameters:
1. [O2%]: Oxygen concentration
2. [Phigh]: High pressure
3. [Thigh]: Time of high pressure
4. [Plow]: Low pressure
5. [Tlow]: Time of low pressure
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