Extrinsic PEEP (applied)
Applied (extrinsic) PEEP — is usually one of the first ventilator settings chosen when mechanical ventilation is initiated. It is set directly on the ventilator.
A small amount of applied PEEP (3 to 5 cmH2O) is used in most mechanically ventilated patients to mitigate end-expiratory alveolar collapse. A higher level of applied PEEP (>5 cmH2O) is sometimes used to improve hypoxemia or reduce ventilator-associated lung injury in patients with acute lung injury, acute respiratory distress syndrome, or other types of hypoxemic respiratory failure.
Read more about this topic: Positive End-expiratory Pressure
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