Presence of an endotracheal tube with its tip located 4 cm above the carina, a nasogastric tube extending below the edge of the radiograph, a Swan-Ganz catheter via right internal jugular approach with its tip in the main pulmonary artery, median sternotomy wires, left chest tubes, and mediastinal drain, all consistent with recent postoperative status.
Suboptimal nasogastric tube (Present) Suboptimal pulmonary arterial catheter (Present) Suboptimal endotracheal tube (Present)