AAOS Emergency Care and Transport of the Sick and Injured Practice Exam 2026 – Your All-in-One Guide to Success!

A closed chest injury is characterized by damage to the chest structures, such as the ribs, lungs, or blood vessels, without any break in the skin. This type of injury often results from blunt trauma, such as from a car accident or a fall, which can lead to internal bleeding or bruising of the lung tissue.

In closed chest injuries, since the skin remains intact, there is no direct exposure to the external environment, which can reduce the risk of infection compared to open injuries. While it is common to see contusions or rib fractures associated with closed injuries, the key element is that the skin is not compromised. This distinction is essential for appropriate assessment and management in emergency care.

Understanding the characteristics of closed versus open injuries can guide responders in determining the best treatment strategy and the urgency with which they may need to transport a patient. Knowing that blunt trauma can lead to a spectrum of injuries highlights the importance of careful evaluation when assessing chest injuries.