What should you do if someone has a penetrating chest injury and is breathing comfortably?

When someone has a penetrating chest injury and is breathing comfortably, the priority is to keep the individual calm and at rest. This approach helps minimize movement and prevents further injury to the chest area, which is crucial given the potentially serious nature of the wound. Staying comfortable can also help maintain their breathing pattern and overall stability until advanced medical help is available.

In situations involving penetrating injuries, such as a stab wound or gunshot wound, there is a risk of damage to internal organs and structures. While it's important to assess the wound, activities like applying direct pressure or removing clothing could aggravate the injury or cause more severe damage. Dressing the wound tightly may also restrict necessary movement or create further complications. Therefore, ensuring the person rests comfortably while awaiting professional medical assistance is the best course of action.