CAISS Trauma Documentation 4 — Questions and Answers
Question 1: Which body region in the AIS includes injuries to the brachial plexus?
- Head
- Thorax
- Spine (Correct answer)
- Extremities
Correct answer: Spine
Brachial plexus injuries are coded under the Spine body region in the AIS, not under Extremities.
Question 2: A trauma patient sustains a Grade III liver laceration. Which AIS severity score is most likely assigned?
- AIS 2
- AIS 3
- AIS 4 (Correct answer)
- AIS 5
Correct answer: AIS 4
A Grade III liver laceration typically corresponds to AIS 4 (severe, life-threatening) due to significant parenchymal disruption.
Question 3: What is the purpose of using 'dot notation' (e.g., 140602.3) in AIS coding?
- To separate the region code from the severity score (Correct answer)
- To indicate bilateral injuries
- To flag injuries requiring surgery
- To denote pediatric patients
Correct answer: To separate the region code from the severity score
In AIS dot notation, the digits before the decimal identify the specific injury while the digit after the decimal is the AIS severity score.
Question 4: Which of the following injuries would receive an AIS code in the 'External' body region?
- Fractured rib
- Degloving injury of the forearm (Correct answer)
- Ruptured diaphragm
- Cerebral contusion
Correct answer: Degloving injury of the forearm
Degloving injuries involve extensive skin and soft tissue avulsion and are coded under the External body region in the AIS.
Question 5: In the context of AIS documentation, what is meant by 'bilateral' injury coding?
- Two injuries in the same body region
- The same injury occurring on both sides of the body (Correct answer)
- An injury crossing two AIS body regions
- An injury with two AIS codes assigned
Correct answer: The same injury occurring on both sides of the body
Bilateral injuries refer to the same type of injury occurring on both sides (e.g., bilateral rib fractures), each of which may be coded separately.
Question 6: How does the AIS handle multiple injuries within the SAME body region when calculating the ISS?
- All injuries in the region are summed
- Only the highest AIS score from that region is used (Correct answer)
- An average of all scores in the region is used
- The two highest scores in the region are added
Correct answer: Only the highest AIS score from that region is used
When calculating ISS, only the highest single AIS score from each body region is used, not the sum of all injuries in that region.
Question 7: Which clinical source document is most critical for accurate AIS coding of brain injuries?
- Chest X-ray report
- CT head/brain imaging report (Correct answer)
- Blood alcohol level
- GCS score at scene
Correct answer: CT head/brain imaging report
CT brain imaging reports provide the specific anatomical and pathological detail needed to accurately classify and code brain injuries in the AIS.
CAISS Trauma Documentation 4
Which body region in the AIS includes injuries to the brachial plexus?