After placing an endotracheal tube and performing an auscultation, you notice lung sounds on the right are present, but lung sounds on the left are absent or diminished. What should you do?

When you hear lung sounds on the right side and not on the left after an intubation, the likely cause is that you advanced the tube too far and inserted the tube into the right Bronchi. This normally occurs on the right side due to its straighter angle.