CAISS Thorax Injuries 5

Question 1

A patient with blunt chest trauma has a chest X-ray showing a widened mediastinum. The injury most consistent with this finding is:

Accepted Answer

Traumatic aortic injury

Answer

Widened mediastinum on chest X-ray is a classic radiographic sign of traumatic aortic injury, typically at the isthmus just distal to the left subclavian artery.

Question 2

Which AIS thorax code structure component identifies the specific anatomical structure injured?

Accepted Answer

The third and fourth digits

Answer

In the AIS 6-digit code, digits 3 and 4 represent the specific anatomical structure within the body region that was injured.

Question 3

Traumatic esophageal perforation is coded in the AIS thorax region and carries a high mortality primarily due to:

Accepted Answer

Mediastinitis from leakage of esophageal contents

Answer

Esophageal perforation allows gastric and oral bacteria to contaminate the mediastinum, causing rapidly fatal mediastinitis if not treated urgently.

Question 4

Which of the following is NOT a component of the 'thorax' body region in AIS coding?

Accepted Answer

Thoracic spine vertebral body

Answer

Thoracic spine vertebral body injuries are coded under AIS body region 6 (spine), not the thorax (body region 4).

Question 5

A patient with blunt chest trauma develops subcutaneous emphysema, pneumomediastinum, and respiratory distress. The most likely injury is:

Accepted Answer

Tracheal or major bronchial injury

Answer

Tracheal or major bronchial injuries allow air to dissect into the mediastinum and subcutaneous tissues, causing pneumomediastinum and subcutaneous emphysema.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

CAISS Thorax Injuries 5