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