CAISS CERTIFICATION STUDY GUIDE
EXAMS 2026/2027 UPDATED QUESTIONS
AND CORRECT VERIFIED ANSWERS
ALDEADY GRANDED A+
Origins of AIS (3) - ans-1) Standardized system
2) Classify type/severity of injury from MVC
3) Consensus
Injury descriptors are organized _________________________ ? -
ans-Anatomically
Injury severity is ranked relative to its importance to
_______________? - ans-The whole body
AIS reflects severity of single injuries and are unaffected by what
three things? - ans-1) time
2) sequela
3) outcome
What type of scale does AIS use? - ans-6 point ordinal scale
,Which type of measurement is more variable? Anatomic or
Physiologic? - ans-Physiologic
Is clinical training necessary for collecting injury data? - ans-NO
AIS is based on what three (3) factors? - ans-1) anatomically-
based
2) consensus driven
3) global
Severity is NOT contingent upon what two (2) factors? - ans-1)
Outcome
2) time
Numerical ranking of severity: 1 - ans-minor
Numerical ranking of severity: 2 - ans-moderate
Numerical ranking of severity: 3 - ans-serious
Numerical ranking of severity: 4 - ans-severe
Numerical ranking of severity: 5 - ans-critical
,Numerical ranking of severity: 6 - ans-maximum (currently
untreatable)
Is mortality a sole determinant of AIS severity? - ans-NO
Are all AIS data comparable from year to year? - ans-NO (updates)
Is "DEATH" part of the severity scale? - ans-NO
Is a patient who dies automatically assigned the highest AIS
severity of 6? - ans-NO (patients w/ minor injuries can die)
Does a linear relationship exist between AIS severity codes? -
ans-NO (AIS 4 is more, NOT twice as severe as AIS 2)
Are all injuries within the same AIS code strictly compatible? -
ans-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? - ans-9
, How many chapters are in the AIS dictionary? - ans-9 (not the
same as body regions)
AIS single digit severity codes are based on what type of patient? -
ans-Average
What four (4) things define the "average" patient? - ans-1) 25-40
yrs old
2) no pre-existing conditions
3) no tx complications
4) received timely/appropriate care
Approximately how many injury descriptors are included in AIS? -
ans-2000
What part of the AIS code is considered the "Pre-Dot Code?" -
ans-6 digits BEFORE the decimal point (left)
What part of the AIS code is considered the "AIS Severity
Number?" - ans-single digit after the decimal (right)
(T/F) The 6 digit pre-dot codes are unique and allow for more
specificity and accurate coding? - ans-TRUE
EXAMS 2026/2027 UPDATED QUESTIONS
AND CORRECT VERIFIED ANSWERS
ALDEADY GRANDED A+
Origins of AIS (3) - ans-1) Standardized system
2) Classify type/severity of injury from MVC
3) Consensus
Injury descriptors are organized _________________________ ? -
ans-Anatomically
Injury severity is ranked relative to its importance to
_______________? - ans-The whole body
AIS reflects severity of single injuries and are unaffected by what
three things? - ans-1) time
2) sequela
3) outcome
What type of scale does AIS use? - ans-6 point ordinal scale
,Which type of measurement is more variable? Anatomic or
Physiologic? - ans-Physiologic
Is clinical training necessary for collecting injury data? - ans-NO
AIS is based on what three (3) factors? - ans-1) anatomically-
based
2) consensus driven
3) global
Severity is NOT contingent upon what two (2) factors? - ans-1)
Outcome
2) time
Numerical ranking of severity: 1 - ans-minor
Numerical ranking of severity: 2 - ans-moderate
Numerical ranking of severity: 3 - ans-serious
Numerical ranking of severity: 4 - ans-severe
Numerical ranking of severity: 5 - ans-critical
,Numerical ranking of severity: 6 - ans-maximum (currently
untreatable)
Is mortality a sole determinant of AIS severity? - ans-NO
Are all AIS data comparable from year to year? - ans-NO (updates)
Is "DEATH" part of the severity scale? - ans-NO
Is a patient who dies automatically assigned the highest AIS
severity of 6? - ans-NO (patients w/ minor injuries can die)
Does a linear relationship exist between AIS severity codes? -
ans-NO (AIS 4 is more, NOT twice as severe as AIS 2)
Are all injuries within the same AIS code strictly compatible? -
ans-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? - ans-9
, How many chapters are in the AIS dictionary? - ans-9 (not the
same as body regions)
AIS single digit severity codes are based on what type of patient? -
ans-Average
What four (4) things define the "average" patient? - ans-1) 25-40
yrs old
2) no pre-existing conditions
3) no tx complications
4) received timely/appropriate care
Approximately how many injury descriptors are included in AIS? -
ans-2000
What part of the AIS code is considered the "Pre-Dot Code?" -
ans-6 digits BEFORE the decimal point (left)
What part of the AIS code is considered the "AIS Severity
Number?" - ans-single digit after the decimal (right)
(T/F) The 6 digit pre-dot codes are unique and allow for more
specificity and accurate coding? - ans-TRUE
