CAISS Extremity Injuries 2

Question 1

A patient has a traumatic amputation at the mid-forearm level with no vascular injury. What is the AIS severity score?

Accepted Answer

AIS 4

Answer

Traumatic amputation of the forearm is coded AIS 4, reflecting a serious but not immediately life-threatening injury.

Question 2

Which AIS body region code is used for injuries to the lower extremity?

Accepted Answer

Region 6

Answer

AIS Region 6 designates lower extremity injuries in the standard AIS coding framework.

Question 3

An open femur fracture with arterial injury is best coded at which AIS severity level?

Accepted Answer

AIS 5

Answer

A femur fracture complicated by arterial injury carries an AIS 5 (critical) severity due to the vascular compromise and hemorrhage risk.

Question 4

In AIS coding, a closed comminuted tibial shaft fracture without neurovascular compromise is assigned which severity?

Accepted Answer

AIS 3

Answer

A comminuted closed tibia fracture is coded AIS 3 (serious) reflecting significant structural disruption without immediate life threat.

Question 5

How does the AIS system differentiate between a knee dislocation with popliteal artery injury versus one without?

Accepted Answer

Vascular injury raises the code to AIS 4 or 5

Answer

Popliteal artery injury with knee dislocation escalates AIS severity to 4 or 5 due to limb-threatening ischemia potential.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test