CAISS Injury Classification & Scoring 2

Question 1

Which AIS body region encompasses injuries to the diaphragm, abdominal aorta, and solid organs such as the liver and spleen?

Accepted Answer

Abdomen

Answer

The Abdomen body region in AIS includes the diaphragm, abdominal aorta, and solid/hollow organs within the abdominal cavity.

Question 2

A patient has AIS scores of 4 (thorax), 3 (abdomen), and 2 (lower extremity). What is the ISS?

Accepted Answer

29

Answer

ISS = 4² + 3² + 2² = 16 + 9 + 4 = 29.

Question 3

An AIS severity code of 2 corresponds to which injury descriptor?

Accepted Answer

Moderate

Answer

AIS 2 is classified as 'Moderate,' indicating an injury with some impact on function but not immediately life-threatening.

Question 4

When two injuries of the same severity occur in the same AIS body region, how does the ISS calculation handle them?

Accepted Answer

Only the higher score is used for that region

Answer

The ISS uses only the maximum AIS score within each body region; multiple injuries in the same region do not both contribute.

Question 5

The NISS (New Injury Severity Score) differs from the ISS primarily in that it:

Accepted Answer

Allows multiple injuries from the same body region to contribute

Answer

NISS sums the squares of the three highest AIS scores regardless of body region, allowing more than one injury from the same region to count.

(CAISS) Certified Abbreviated Injury Scale Specialist Practice Test