Which statement is true about a sucking chest wound?

• A. It does not affect breathing
• B. It results from penetrating trauma, can cause a lung to collapse
• C. It results from blunt trauma
• D. It is best treated by sealing the wound airtight

Answer: (B)

A sucking chest wound is an open pneumothorax where air is drawn into the chest cavity through a wound in the chest wall with each breath. This occurs from penetrating trauma, such as a stab or gunshot wound, rather than from blunt force, and the entering air can cause the lung on that side to collapse, leading to breathing difficulties and reduced oxygenation.

The correct care is to seal the chest wound with an occlusive dressing to prevent air from being sucked into the chest. In practice, you’d use a sterile dressing taped on three sides so air can escape if pressure builds but cannot freely enter the chest cavity. This helps prevent worsening collapse of the lung and improves ventilation. Monitor for signs of tension pneumothorax (such as worsening shortness of breath, agitation, or changes in consciousness) and seek emergency help.