to compare the effects of continuous positive airway pressure ( cpap ) with those of ambient end-expiratory pressure ( t-tube ) on lung mechanics and blood gas exchange , transpulmonary pressure ( ptp ) , tidal volume ( vt ) , respiratory frequency , and arterial oxygen and carbon dioxide tensions were measured in 16 spontaneously breathing patients recovering from acute respiratory failure .
C0024109
lung
C0264490
acute respiratory failure