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Measurement of the total PEEP on the ventilator, in circuit A and B and as function of the flow restriction with an additional in-line PEEP to determine intrinsic PEEP in both circuits. a Set-up used for this experiment with the flow restrictor on the inspiratory limb and the in-line PEEP on the expiratory limb of circuit A. b Total PEEP as function of valve closure for ventilator settings 2 and 5 displayed with their inspiratory times.
