CAISS Thorax Injuries 2

Question 1

A patient presents with paradoxical chest wall movement following blunt trauma. This finding is most consistent with:

Accepted Answer

Flail chest

Answer

Flail chest occurs when three or more consecutive ribs are fractured in two or more places, causing a free-floating segment that moves paradoxically with respiration.

Question 2

In the AIS, a tension pneumothorax is typically coded at which severity level?

Accepted Answer

AIS 4

Answer

Tension pneumothorax is coded as AIS 4 (severe) because it is life-threatening and causes significant hemodynamic compromise.

Question 3

Which thoracic injury is characterized by AIS code 450210.2?

Accepted Answer

Rib fracture, 1 rib

Answer

AIS code 450210.2 corresponds to a single rib fracture, which is classified as AIS 2 (moderate severity).

Question 4

A patient sustains blunt thoracic trauma and develops hypoxia 24 hours later with bilateral infiltrates on chest X-ray but no cardiac failure. The most likely diagnosis is:

Accepted Answer

Pulmonary contusion with ARDS

Answer

Pulmonary contusion can progress to ARDS within 24–48 hours, presenting with bilateral infiltrates and hypoxia in the absence of cardiac failure.

Question 5

The AIS body region code for thoracic injuries is:

Accepted Answer

4

Answer

AIS body region 4 corresponds to the thorax, which includes the chest wall, lungs, heart, and major thoracic vessels.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test

CAISS Thorax Injuries 2