First Aid for Corrections Officers Practice Test

What characterizes a flail chest injury?

1. Multiple fractures of ribs in various locations

2. A single break in one rib

3. A disjointed rib cage from blunt trauma

4. Fractured vertebrae affecting chest movement

The correct answer is: Multiple fractures of ribs in various locations

A flail chest injury is characterized specifically by multiple fractures of ribs in various locations. This type of injury occurs when three or more adjacent ribs are fractured in multiple places, resulting in a segment of the rib cage that becomes detached from the rest of the thoracic structure. This detachment leads to the affected segment moving paradoxically; during inhalation, it may cave inward instead of expanding, and during exhalation, it may bulge outward. This disruption severely compromises the ability of the chest wall to function normally during breathing, leading to respiratory distress and necessitating immediate medical intervention. In contrast, a single break in one rib does not lead to the complex respiratory issues seen with flail chest, as the integrity of the rib cage remains mostly intact. A disjointed rib cage, while it might suggest some degree of instability, does not specifically define flail chest without the characteristic multiple fractures. Similarly, fractured vertebrae may impact overall chest movement, but they do not directly relate to the rib injuries that define flail chest. Understanding these distinctions is crucial for assessing chest injuries accurately.