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Late trigger (delayed triggering), Increased expiratory resistance

There is a significant delay between the onset of the patient's inspiration and ventilator flow delivery (late trigger/delayed triggering). The initial flow trigger setting was 3.0. This delay is minimized after selecting a more sensitive trigger setting (flow trigger 1.0).

The inspiratory pressure falls to PEEP level immediately after the expiratory valve opens. When there is increased resistance to expiration, this pressure drop occurs slowly.

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