11
Demand breaths
All demand breaths are patient triggered, pressure controlled and flow or time cycled.
Demand breaths can be either pressure supported (PSV) or spontaneous. All demand
breaths are accompanied by the yellow patient demand indicator, which flashes in the
upper left of the touch screen. The Avea ventilator delivers two demand breath types:
1. PSV: Active when CPAP/PSV, synchronized intermittent mandatory ventilation (SIMV)
and airway pressure release ventilation (APRV)/BiPhasic modes are selected.
2. Spontaneous breath: For adult and pediatric patients during a spontaneous demand
breath, inspiratory pressure is pre-set at positive end-expiratory pressure (PEEP) + 2
cmH
2
O. For neonatal patients, a spontaneous breath is a demand flow breath delivered
at the pre-set PEEP.
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