NMGS
PMC PROCEDURE (continued)
6-27
6.14.10
Increase the test pressure slowly. Does a VENT PRESS HI activate as a
warning alarm within 47 to 53 cm H
2
O? ___ (Y)
6.14.11
Create a sub-atmospheric test pressure slowly. Does the SUB ATM PRES
warning alarm activate within -7 to -13 cm H
2
O? ___ (Y)
6.14.12
Set the AUTO/BAG valve to BAG, (Vent off).
6.14.13
Open APL valve.
6.14.14
Remove the test equipment and reconnect the breathing pressure sensor
line to the absorber.
6.15 VENTILATOR
NOTE:
Readjustment of inspiratory flow to limit the inspiratory plateau may be
required to reduce erratic tidal volumes and breath rates caused by
artifact volumes.
6.15.1
Remove the bellows hose and the scavenger hose at the ventilator relief
valve. Remove the bellows sub-assembly and remove bellows.
6.15.2
Visually inspect the bellows for deterioration particularly at its seams and
corrugations.
6.15.3
Verify the presence of it’s sealing O-ring and reassemble the components.
6.15.4
Turn on the ventilator on using the ON/OFF knob.
6.15.5
If applicable, does the FAULT indicator turn on? (Y)
6.15.6
Set the AUTO/MAN selector switch to AUTO.
6.15.7
Does the FAULT indicator turn off? (Y)
6.15.8
Set the FREQUENCY to 10 BPM.
6.15.9
Press and hold the EXTENDED RANGE switch and set the I:E ratio to
2:1. Using a stopwatch, time the extended I:E ratio. Is the inspiratory time
within 3.6 to 4.4 seconds and the expiratory time between 1.8 to 2.2
seconds? ___ (Y)
6.15.10
Set the I:E RATIO to 1:2. Using a stopwatch, time the I:E ratio. Is the
inspiratory time between 1.8 to 2.2 seconds and the expiratory time within
3.6 to 4.4 seconds? ___ (Y)
6.15.11
Adjust the Oxygen flow to 500 ml/min.
6.15.12
Set the Tidal Volume to 1200, or if testing an external pediatric bellows set
the tidal volume to approximately 300 ml.
6.15.13
Attach a patient circuit to the absorber system.
6.15.14
Set the pressure limit control to MAX.
6.15.15
Adjust the Inspiratory Flow to the bottom of the LOW zone.
6.15.16
Occlude the Y-piece.
6.15.17
Press the O
2
Flush momentarily to inflate the bellows.
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9
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