Ventway Sparrow User Manual
Page 99 of 144
15.5. IMV VC (CPR)
In IMV-VC (CPR), as in the normal SIMV-VC (PS), the patient is supplied with
the set tidal volume VT during the mandatory breaths.
The only difference in this setup, is that patient triggering is switched to
OFF. This is very useful during cardiopulmonary resuscitation combining
chest compressions.
Chest compression is known to activate undesirable patient triggers
causing the ventilator to continue delivering spontaneous breaths at a high
rate (uncontrolled auto triggering).
By turning off the triggers, the ventilator will not alarm due to high minute
volume, breath rate or inadequate I:E ratio.
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