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5 Preoperative Tests
M1132382
5-11
WARNING Agent mixtures from the low-pressure leak test stay in the
system. Clear the system by flowing O2 at 1 l/min for one
minute.
12. Clear the system of agent.
• Set the O2 flow to 1 l/min.
• Flow O2 for one minute.
• Turn the O2 flow control fully clockwise for minimum flow.
Alarm tests
1. Connect a test lung to the patient connection.
2. Set the Bag/Vent switch to Vent.
3. Set the System switch to On.
4. Push the Menu key.
5. Select Ventilation Mode - VCV .
6. Set the ventilator parameters.
• TV 400 ml.
• Rate 12.
• I:E 1:2.
• Pmax 40 cmH2O.
• PEEP Off.
7. Set the O2 flow to the minimum flow.
8. Turn off all other gases.
9. Push the O2 flush button to fill the bellows.
10. Set the Bag/Vent switch to Bag and then to Vent. Make sure that:
• Mechanical ventilation starts.
• A subatmospheric pressure alarm does not occur.
• The ventilator shows the correct data based on settings.
• The bellows inflate and deflate during mechanical ventilation.
11. Set the O2 flow control to 5 l/min. Make sure that:
• The pressure at the end of the breath is approximately
2 cmH2O. This can be seen on the pressure waveform
displayed below.
• The ventilator shows the correct data based on settings.
• The bellows inflate and deflate during mechanical ventilation.