Stable positioning of endotracheal (ET) tube, nasogastric (NG) tube, right internal jugular (IJ) Swan-Ganz catheter, and intra-aortic balloon pump (IABP).
Suboptimal endotracheal tube (Absent) Suboptimal nasogastric tube (Absent) Suboptimal pulmonary arterial catheter (Absent) Intraaortic balloon pump (Present)