Removal of the endotracheal tube and nasogastric tube since the last examination. Placement of a feeding tube with its tip located at the pylorus. Presence of a Swan-Ganz catheter in the proximal left pulmonary artery.
Suboptimal nasogastric tube (Absent) Suboptimal pulmonary arterial catheter (Absent) Suboptimal endotracheal tube (Absent)