Fig. 1From: Respiratory acidosis during bronchoscopy-guided percutaneous dilatational tracheostomy: impact of ventilator settings and endotracheal tube sizeTypical example of recording transcutaneous PCO2 during dilatational tracheostomy (endotracheal tube size 7.5 mm ID). Arterial blood gas analysis was measured at the start, the end and the end+ 30 min, respectivelyBack to article page