Fig. 4From: Can ventilator settings reduce the negative effects of endotracheal suctioning? Investigations in a mechanical lung modelBronchoscopic suctioning. Bronchoscope insertion and suctioning with altered tube size (ETT 9 mm, 8 mm and 7 mm ID); presented as described in Fig. 3. Bronchoscopic suctioning reduced model airway pressures and tidal volume more than closed catheter suctioning in all ETT sizes, most pronounced in 7 mm ID ETTBack to article page