What is recommended for managing an open chest wound?

Applying an occlusive dressing is the recommended management for an open chest wound because it helps create a seal over the wound, preventing air from entering the chest cavity during inhalation. This is crucial in preventing a condition known as a pneumothorax, where air accumulates in the pleural space, potentially leading to respiratory distress or collapse of the lung. An occlusive dressing promotes a controlled environment that supports lung function while allowing potential drainage of fluid or blood if necessary.

In contrast to the correct answer, leaving the wound open for drainage could lead to further complications such as infection or uncontrolled air entry, which can exacerbate respiratory problems. Using a standard bandage does not provide the necessary airtight seal needed for chest wounds, and covering with ice is not appropriate as it does not address the seriousness of an open chest wound and may potentially worsen the situation by causing further injury or constriction around the area.