Emergency Medical Technician (EMT) Trauma Practice Test 2025 - Free EMT Trauma Practice Questions and Study Guide

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What mechanism can lead to flail chest in trauma patients?

Compression of the abdomen

Blunt force trauma to the chest

Flail chest occurs when a segment of the rib cage becomes detached from the rest of the thoracic skeleton, typically following multiple rib fractures. Blunt force trauma to the chest is the primary mechanism that can lead to this condition. The force can cause several adjacent ribs to fracture in multiple places, resulting in a free-floating segment of the chest wall that moves paradoxically during respiration—moving in while inhaling and out while exhaling. This impairment of normal respiratory mechanics can lead to significant respiratory distress and the necessity for immediate medical intervention.

The other mechanisms listed, such as compression of the abdomen, penetrating injuries to the abdomen, and falls from significant heights, may result in other types of trauma or injuries, but they are not directly associated with the characteristic rib fractures that define flail chest.

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Penetrating injuries to the abdomen

Falls from significant heights

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