9-5
9.8 NIF
NIF is the maximum negative pressure generated by the patient’s spontaneous breathing
within a period of time.
1. Select the [Tools] key→[Diagnostics]→[NIF].
2. Select [NIF] to access the NIF measurement window.
3. Press and hold the [Exp. Hold] key on the screen and the system starts NIF
measurement.
4. Release the [Exp. Hold] key. The measurement is completed. The measurement result is
displayed. The ventilator can display the three most recent measurement results.
NOTE
If no operation is performed on NIF measurement window within three minutes,
the measurement window exits automatically.
9.9 PEEPi
The PEEPi measurement function supports measurement of two parameters: PEEPi and
Vtrap. PEEPi is the positive end-expiratory pressure produced by the trapped gas and Vtrap is
the trapped gas volume.
1. Select the [Tools] key→[Diagnostics]→[PEEPi].
2. Select [PEEPi] to access the PEEPi measurement window.
3. Select [Start]. The system starts PEEPi measurement and prompts [Measurement
Active].
4. After the measurement is completed, the measurement result is displayed. The ventilator
can display the three most recent measurement results.
5. After the measurement is completed, waveforms and spirometry data are frozen
automatically.
NOTE
During PEEPi measurement, pressing the [Freeze] key does not produce freezing
operation.
Manual Breath, Inspiration Hold, and Expiration Hold are disabled during PEEPi
measurement.
If no operation is performed on PEEPi measurement window within three minutes,
the measurement window exits automatically.
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