Which methods are used to verify tracheal intubation or airway device placement?

• A. Auscultation, chest excursion, and confirmation of expired carbon dioxide
• B. Visual inspection only
• C. Palpation of the trachea
• D. Capnography alone

Answer: (A)

Verifying airway placement relies on using multiple checks at once: clinical signs of ventilation together with objective confirmation. Auscultation for breath sounds on both sides helps ensure air is entering the lungs rather than the esophagus. Watching chest movement confirms that ventilation is actually happening and that both lungs are expanding symmetrically. The confirmation of expired carbon dioxide with capnography provides real-time, objective evidence that the tube is in the trachea and that gas exchange is occurring. Together, these three methods give a reliable, multimodal verification.

Relying on visual inspection alone can miss esophageal intubation or misplacement despite seeing the tube pass the cords. Palpation of the trachea isn’t a dependable indicator of correct placement. Capnography by itself is powerful, but should be interpreted alongside auscultation and chest movement to ensure the tube is correctly positioned and functioning.