Vyaire Avea - Bias Flow; Pressure Trigger

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Bias Flow
The Bias Flow control sets the background flow available between breaths. Additionally,
this control establishes the base flow for flow triggering.
Note: To ensure adequate bias flow for inspiratory triggering, the Bias Flow setting
should be at least 0.5 L per minute greater than the flow trigger threshold. Consult the
ventilator circuit manufacturer to ensure the Bias Flow setting can suciently prevent
overheating the ventilator circuit.
Pressure Trigger
The Pressure Trigger (Pres Trig) control sets the level below PEEP that activates the
inspiratory trigger mechanism. When the pressure in the patient circuit falls below PEEP by
the set pressure trigger level, the ventilator cycles to inspiration. Pres Trig is also used to
activate the inter-breath demand system in volume controlled ventilation.
Note: Setting the Pres Trig to excessively high levels can impair the patient’s ability
to activate the inter-breath demand system in volume controlled ventilation.