1 | Page
CAISS COMPREHENSIVE STUDY GUIDE
EXAM-BANK 2025 UPDATED ACTUAL EXAM
WITH CORRECT SOLUTIONS.
Origins of AIS (3) - correct answer- 1) Standardized system
2) Classify type/severity of injury from MVC
3) Consensus
Injury descriptors are organized _________________________
? - correct answer- Anatomically
Injury severity is ranked relative to its importance to
_______________? - correct answer- The whole body
AIS reflects severity of single injuries and are unaffected by
what three things? - correct answer- 1) time
2) sequela
3) outcome
What type of scale does AIS use? - correct answer- 6 point
ordinal scale
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Which type of measurement is more variable? Anatomic or
Physiologic? - correct answer- Physiologic
Is clinical training necessary for collecting injury data? - correct
answer- NO
AIS is based on what three (3) factors? - correct answer- 1)
anatomically- based
2) consensus driven
3) global
Severity is NOT contingent upon what two (2) factors? - correct
answer- 1) Outcome
2) time
Numerical ranking of severity: 1 - correct answer- minor
Numerical ranking of severity: 2 - correct answer- moderate
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Numerical ranking of severity: 3 - correct answer- serious
Numerical ranking of severity: 4 - correct answer- severe
Numerical ranking of severity: 5 - correct answer- critical
Numerical ranking of severity: 6 - correct answer- maximum
(currently untreatable)
Is mortality a sole determinant of AIS severity? - correct
answer- NO
Are all AIS data comparable from year to year? - correct
answer- NO (updates)
Is "DEATH" part of the severity scale? - correct answer- NO
, 4 | Page
Is a patient who dies automatically assigned the highest AIS
severity of 6? - correct answer- NO (patients w/ minor injuries
can die)
Does a linear relationship exist between AIS severity codes? -
correct answer- NO (AIS 4 is more, NOT twice as severe as
AIS 2)
Are all injuries within the same AIS code strictly compatible? -
correct answer- NO (tibia fx & alveolar ridge are both AIS - 2,
although one may be worse than the other, both are considered
'moderate')
What AIS code is assigned to a patient with inadequate
information regarding an injury? - correct answer- 9
AIS single digit severity codes are based on what type of
patient? - correct answer- Average
What four (4) things define the "average" patient? - correct
answer- 1) 25-40 yrs old
2) no pre-existing conditions
3) no tx complications
CAISS COMPREHENSIVE STUDY GUIDE
EXAM-BANK 2025 UPDATED ACTUAL EXAM
WITH CORRECT SOLUTIONS.
Origins of AIS (3) - correct answer- 1) Standardized system
2) Classify type/severity of injury from MVC
3) Consensus
Injury descriptors are organized _________________________
? - correct answer- Anatomically
Injury severity is ranked relative to its importance to
_______________? - correct answer- The whole body
AIS reflects severity of single injuries and are unaffected by
what three things? - correct answer- 1) time
2) sequela
3) outcome
What type of scale does AIS use? - correct answer- 6 point
ordinal scale
,2 | Page
Which type of measurement is more variable? Anatomic or
Physiologic? - correct answer- Physiologic
Is clinical training necessary for collecting injury data? - correct
answer- NO
AIS is based on what three (3) factors? - correct answer- 1)
anatomically- based
2) consensus driven
3) global
Severity is NOT contingent upon what two (2) factors? - correct
answer- 1) Outcome
2) time
Numerical ranking of severity: 1 - correct answer- minor
Numerical ranking of severity: 2 - correct answer- moderate
,3 | Page
Numerical ranking of severity: 3 - correct answer- serious
Numerical ranking of severity: 4 - correct answer- severe
Numerical ranking of severity: 5 - correct answer- critical
Numerical ranking of severity: 6 - correct answer- maximum
(currently untreatable)
Is mortality a sole determinant of AIS severity? - correct
answer- NO
Are all AIS data comparable from year to year? - correct
answer- NO (updates)
Is "DEATH" part of the severity scale? - correct answer- NO
, 4 | Page
Is a patient who dies automatically assigned the highest AIS
severity of 6? - correct answer- NO (patients w/ minor injuries
can die)
Does a linear relationship exist between AIS severity codes? -
correct answer- NO (AIS 4 is more, NOT twice as severe as
AIS 2)
Are all injuries within the same AIS code strictly compatible? -
correct answer- NO (tibia fx & alveolar ridge are both AIS - 2,
although one may be worse than the other, both are considered
'moderate')
What AIS code is assigned to a patient with inadequate
information regarding an injury? - correct answer- 9
AIS single digit severity codes are based on what type of
patient? - correct answer- Average
What four (4) things define the "average" patient? - correct
answer- 1) 25-40 yrs old
2) no pre-existing conditions
3) no tx complications
