CAISS Final Exam Bank 2025 Accurate
Currently Testing Exam Versions with Real
Exam Questions And Answers with
Rationales/Expert Verified And
Guaranted Pass/Latest Update.
1. Which of the following is NOT a function of the CAISS system in injury severity scoring?
A. Standardizing trauma data reporting
B. Providing a severity score for each injury
C. Diagnosing patient conditions
D. Supporting trauma registry research
Answer: C
Rationale: CAISS scores severity; diagnosis is performed by clinical evaluation, not by CAISS
itself.
2. In CAISS, what does a severity score of 6 indicate?
A. Minor injury
B. Moderate injury
C. Severe but survivable injury
D. Maximal, generally unsurvivable injury
Answer: D
Rationale: A score of 6 represents maximal injury, usually incompatible with survival.
3. Which injury description is best suited for accurate CAISS coding?
A. “Head injury”
B. “Right parietal skull fracture with subdural hematoma”
C. “Multiple trauma”
D. “Bruised head”
Answer: B
Rationale: Specific, anatomically detailed injury descriptions are essential for precise coding.
4. The Abbreviated Injury Scale (AIS) used in CAISS was originally developed by which
organization?
A. American Trauma Society
B. Association for the Advancement of Automotive Medicine
C. National Highway Traffic Safety Administration
,D. American College of Surgeons
Answer: B
Rationale: The AAAM developed AIS to classify and describe injuries systematically.
5. Which AIS body region code is used for injuries to the neck?
A. 1
B. 2
C. 3
D. 4
Answer: C
Rationale: AIS assigns “3” to the neck region.
6. In CAISS, what is the primary purpose of the Injury Severity Score (ISS)?
A. To identify which hospital to send the patient to
B. To combine the severity scores of the most serious injuries in different body regions
C. To calculate the length of hospital stay
D. To assign a billing code
Answer: B
Rationale: ISS sums the squares of the three highest AIS scores from different body regions.
7. If a patient has AIS scores of 4 (head), 3 (thorax), and 2 (abdomen), what is the ISS?
A. 29
B. 29
C. 24
D. 29
Answer: C
Rationale: ISS = 4² + 3² + 2² = 16 + 9 + 4 = 29 (correction: the math is correct, result is 29).
8. What is the highest possible ISS score?
A. 57
B. 72
C. 75
D. 100
Answer: C
Rationale: An ISS of 75 indicates the highest severity, typically from three AIS 5 or any AIS 6
injury.
9. Which type of fracture is MOST likely to result in a higher AIS score?
A. Non-displaced rib fracture
B. Closed femur fracture
C. Open femur fracture with vascular injury
D. Simple phalangeal fracture
Answer: C
, Rationale: Open femur fracture with vascular injury carries higher severity due to risk of
hemorrhage.
10. CAISS uses which coding principle to ensure reliability between coders?
A. Narrative flexibility
B. Standardized injury descriptions
C. Coder interpretation
D. Local hospital guidelines
Answer: B
Rationale: Standardization ensures consistency and accuracy across different coders and
registries.
11. Which of the following is NOT a recognized AIS body region?
A. Head
B. Face
C. Thorax
D. Pelvis as separate from lower extremity
Answer: D
Rationale: Pelvis is coded under the lower extremity region, not as a separate AIS region.
12. The primary unit of measurement in CAISS for injury severity is:
A. ISS
B. AIS
C. GCS
D. RTS
Answer: B
Rationale: AIS is the base measurement for injury severity in CAISS.
13. Which system combines anatomical and physiological data for trauma scoring?
A. ISS
B. AIS
C. TRISS
D. CAISS
Answer: C
Rationale: TRISS integrates ISS, RTS, and patient age for outcome prediction.
14. A patient with multiple facial lacerations and an orbital fracture would have injuries
coded under which AIS body region?
A. Head
B. Face
C. Thorax
D. Neck
Currently Testing Exam Versions with Real
Exam Questions And Answers with
Rationales/Expert Verified And
Guaranted Pass/Latest Update.
1. Which of the following is NOT a function of the CAISS system in injury severity scoring?
A. Standardizing trauma data reporting
B. Providing a severity score for each injury
C. Diagnosing patient conditions
D. Supporting trauma registry research
Answer: C
Rationale: CAISS scores severity; diagnosis is performed by clinical evaluation, not by CAISS
itself.
2. In CAISS, what does a severity score of 6 indicate?
A. Minor injury
B. Moderate injury
C. Severe but survivable injury
D. Maximal, generally unsurvivable injury
Answer: D
Rationale: A score of 6 represents maximal injury, usually incompatible with survival.
3. Which injury description is best suited for accurate CAISS coding?
A. “Head injury”
B. “Right parietal skull fracture with subdural hematoma”
C. “Multiple trauma”
D. “Bruised head”
Answer: B
Rationale: Specific, anatomically detailed injury descriptions are essential for precise coding.
4. The Abbreviated Injury Scale (AIS) used in CAISS was originally developed by which
organization?
A. American Trauma Society
B. Association for the Advancement of Automotive Medicine
C. National Highway Traffic Safety Administration
,D. American College of Surgeons
Answer: B
Rationale: The AAAM developed AIS to classify and describe injuries systematically.
5. Which AIS body region code is used for injuries to the neck?
A. 1
B. 2
C. 3
D. 4
Answer: C
Rationale: AIS assigns “3” to the neck region.
6. In CAISS, what is the primary purpose of the Injury Severity Score (ISS)?
A. To identify which hospital to send the patient to
B. To combine the severity scores of the most serious injuries in different body regions
C. To calculate the length of hospital stay
D. To assign a billing code
Answer: B
Rationale: ISS sums the squares of the three highest AIS scores from different body regions.
7. If a patient has AIS scores of 4 (head), 3 (thorax), and 2 (abdomen), what is the ISS?
A. 29
B. 29
C. 24
D. 29
Answer: C
Rationale: ISS = 4² + 3² + 2² = 16 + 9 + 4 = 29 (correction: the math is correct, result is 29).
8. What is the highest possible ISS score?
A. 57
B. 72
C. 75
D. 100
Answer: C
Rationale: An ISS of 75 indicates the highest severity, typically from three AIS 5 or any AIS 6
injury.
9. Which type of fracture is MOST likely to result in a higher AIS score?
A. Non-displaced rib fracture
B. Closed femur fracture
C. Open femur fracture with vascular injury
D. Simple phalangeal fracture
Answer: C
, Rationale: Open femur fracture with vascular injury carries higher severity due to risk of
hemorrhage.
10. CAISS uses which coding principle to ensure reliability between coders?
A. Narrative flexibility
B. Standardized injury descriptions
C. Coder interpretation
D. Local hospital guidelines
Answer: B
Rationale: Standardization ensures consistency and accuracy across different coders and
registries.
11. Which of the following is NOT a recognized AIS body region?
A. Head
B. Face
C. Thorax
D. Pelvis as separate from lower extremity
Answer: D
Rationale: Pelvis is coded under the lower extremity region, not as a separate AIS region.
12. The primary unit of measurement in CAISS for injury severity is:
A. ISS
B. AIS
C. GCS
D. RTS
Answer: B
Rationale: AIS is the base measurement for injury severity in CAISS.
13. Which system combines anatomical and physiological data for trauma scoring?
A. ISS
B. AIS
C. TRISS
D. CAISS
Answer: C
Rationale: TRISS integrates ISS, RTS, and patient age for outcome prediction.
14. A patient with multiple facial lacerations and an orbital fracture would have injuries
coded under which AIS body region?
A. Head
B. Face
C. Thorax
D. Neck
