- normal patients when ventilated at normal tidal volumes, will have peak inspiratory pressures of 25-30 cm H20; - many ICU pts have abnormal lung
Compliance & show peak pressures of 30-40 cm H2O; - barotrauma does not occur when
PIP is < 50 cm H2O; - barotrauma is seen in 8% of patients when PIP is 50-70%; - barotrauma is seen in 43% of patients w/ PIP > 70 cm H2O; - most ventilators have a pop off valve set at 60 to 70 %;
