Questions and Answers with Accurate
Rationales | Grade A+
• AIS reflects severity of single injuries and are unaffected by what three things? -
✓✓1) time
2) sequela
3) outcome
• What type of scale does AIS use? -✓✓6 point ordinal scale
• Which type of measurement is more variable? Anatomic or Physiologic? -
✓✓Physiologic
• Is clinical training necessary for collecting injury data? -✓✓NO
• AIS is based on what three (3) factors? -✓✓1) anatomically- based
2) consensus driven
3) global
• Severity is NOT contingent upon what two (2) factors? -✓✓1) Outcome
2) time
• Numerical ranking of severity: 1 -✓✓minor
• Numerical ranking of severity: 2 -✓✓moderate
,• Numerical ranking of severity: 3 -✓✓serious
• Numerical ranking of severity: 4 -✓✓severe
• Numerical ranking of severity: 5 -✓✓critical
• Numerical ranking of severity: 6 -✓✓maximum (currently untreatable)
• Is mortality a sole determinant of AIS severity? -✓✓NO
• Are all AIS data comparable from year to year? -✓✓NO (updates)
• Is "DEATH" part of the severity scale? -✓✓NO
• Is a patient who dies automatically assigned the highest AIS severity of 6? -
✓✓NO (patients w/ minor injuries can die)
• Does a linear relationship exist between AIS severity codes? -✓✓NO (AIS 4 is
more, NOT twice as severe as AIS 2)
• Are all injuries within the same AIS code strictly compatible? -✓✓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? -✓✓9
• How many chapters are in the AIS dictionary? -✓✓9 (not the same as body
regions)
• AIS single digit severity codes are based on what type of patient? -✓✓Average
• What four (4) things define the "average" patient? -✓✓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? -✓✓2000
• What part of the AIS code is considered the "Pre-Dot Code?" -✓✓6 digits
BEFORE the decimal point (left)
• What part of the AIS code is considered the "AIS Severity Number?" -✓✓single
digit after the decimal (right)
• (T/F) The 6 digit pre-dot codes are unique and allow for more specificity and
accurate coding? -✓✓TRUE
• The first digit in the pre-dot code corresponds to what? -✓✓Body Region
, • The second digit in the pre-dot code corresponds to what? -✓✓Type of anatomic
structure (skeletal, solid organ)
• The third/fourth digits in the pre-dot code correspond to what? -✓✓Specific
anatomic structure (femur)
• The fifth/sixth digits in the pre-dot code correspond to what? -✓✓Level of injury
within the specific body region and anatomic structure (NFS, minor, major)
• Parenthesis in the AIS dictionary indicate what? -✓✓synonyms or definitions for
injury types
• Brackets in the AIS dictionary indicate what? -✓✓inclusionary/exclusionary info,
OIS Grades
• Boxed bold type in the AIS dictionary indicates what? -✓✓directives to assist
coder in appropriate use of specific description
• Semicolons in the AIS dictionary indicate what? -✓✓separate injury descriptors
that are comparable in severity
• Italics in the AIS dictionary indicate what? -✓✓proper-named injuries/structures,
OIS grades
• Does AIS assess the severity of multiple injuries? -✓✓NO (single injury severity
only)