Which statement correctly describes ventilation if the endotracheal tube is properly positioned in the trachea during bag-valve ventilation?

• A. The bag-valve device should be easy to compress and chest expansion should be seen
• B. You should verify placement by auscultating for breath sounds bilaterally only
• C. The bag-valve device should be easy to compress and you should see corresponding chest expansion
• D. Chest movement alone is sufficient to confirm proper tube placement

Answer: (C)

When endotracheal intubation is correctly placed for bag-valve ventilation, you want evidence that air is actually moving into the lungs with each squeeze. The best indicator is two-part: the bag should compress easily, and you should see the chest rise in sync with each breath. Easy bag compression means there’s no obstruction or poor seal hindering ventilation, and seeing the chest expand confirms that the delivered air is reaching the lungs rather than just moving in the airway or being wasted elsewhere. Relying on listening for breath sounds alone isn’t enough, because sounds can be misleading and don’t guarantee proper air entry. Likewise, chest movement by itself doesn’t prove the tube is in the trachea—there could be misleading movement or other factors at play. So the combination of an easy-to-compress bag and visible chest expansion best demonstrates effective ventilation with the tube in the trachea.