Document Classification

Section Type: OBJECTIVE

Text: To evaluate the effects of 12 ventilator settings (pressure support ventilation [PSV] plus positive end-expiratory pressure [PEEP], 30 + 0 cm H (2) O ; 25 + 5 cm H (2) O ; 25 + 0 cm H (2) O ; 20 + 5 cm H (2) O ; 20 + 0 cm H (2) O ; 15 + 5 cm H (2) O ; 15 + 0 cm H (2) O ; 10 + 5 cm H (2) O ; 10 + 0 cm H (2) O ; 5 + 5 cm H (2) O ; 5 + 0 cm H (2) O ; and 0 + 5 cm H (2) O) on physiologic variables ; the percentage of ineffective efforts ; patient comfort ; and whether the diagnosis of COPD may influence results.