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CAISS EXAM CERTIFICATION EXAM 2 LATEST VERSIONS ACTUAL EXAM 900+
QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES
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
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
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
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
4) received timely/appropriate care
Approximately how many injury descriptors are included in AIS? - correct answer 2000
What part of the AIS code is considered the "Pre-Dot Code?" - correct answer 6 digits BEFORE
the decimal point (left)
What part of the AIS code is considered the "AIS Severity Number?" - correct 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? -
correct answer TRUE
The first digit in the pre-dot code corresponds to what? - correct answer Body Region
The second digit in the pre-dot code corresponds to what? - correct answer Type of anatomic
structure (skeletal, solid organ)
The third/fourth digits in the pre-dot code correspond to what? - correct answer Specific
anatomic structure (femur)
The fifth/sixth digits in the pre-dot code correspond to what? - correct answer Level of injury
within the specific body region and anatomic structure (NFS, minor, major)
,Parenthesis in the AIS dictionary indicate what? - correct answer synonyms or definitions for
injury types
Brackets in the AIS dictionary indicate what? - correct answer inclusionary/exclusionary info,
OIS Grades
Boxed bold type in the AIS dictionary indicates what? - correct answer directions to help coder
choose appropriate code
Semicolons in the AIS dictionary indicate what? - correct answer separate injury descriptors
that are comparable in severity
Italics in the AIS dictionary indicate what? - correct answer proper-named injuries/structures,
OIS grades
Does AIS assess the severity of multiple injuries? - correct answer NO (single injury severity
only)
The injury Severity Score (ISS) is defined as what? - correct answer Sum of the squares of
highest AIS in each of three most severely injured ISS body regions.
What are the six body regions used in the ISS? - correct answer 1) head & neck
2) face
3) chest
4) abdomen & pelvic organs
5) extremities & pelvis
6) external
Asphyxia is assigned to which ISS region? - correct answer Head and Neck
Drowning is assigned to which ISS region? - correct answer Chest
Lumbar spine lesions would be assigned to which ISS region? - correct answer Abdomen &
pelvic contents
Are external injuries coded independent of their body region? - correct answer YES
Hypothermia, electrical injuries, and whole body injuries are coded to which ISS region? -
correct answer External
The ISS score ranged from _____ to _____ ? - correct answer 1 to 75
What are the two ways an ISS of 75 can be achieved? - correct answer 1) AIS of 5 in each of
three different body regions
, 2) AIS of 6 in a single body region
Do patients with an AIS 9 achieve an accurate ISS score? - correct answer NO
Can less than three regions be used to calculate an ISS? - correct answer YES
Can more than three regions be used to calculate an ISS? - correct answer NO
Do all ISS scores have the same mortality rates? - correct answer NO (depends on body regions
affected)
Assigning injuries to too few body regions results in what? - correct answer underestimation of
ISS
Assigning injuries to too many body regions results in what? - correct answer overestimation of
ISS
Are complications or sequela included in the definition of an injury? - correct answer NO
Define injury? - correct answer Anatomic lesion resulting from transfer of injury.
List seven (7) examples of sequela that are coded in AIS as injuries? - correct answer 1)
HTX/PTX
2) retroperitoneal hemorrhage
3) cerebral edema/swelling
4) ischemic brain damage r/t head trauma
5) blood loss
6) asphyxia
7) compartment syndrome
Are preliminary (suspected, possible, rule out) dx codeable? - correct answer NO
Are all clinical dx alone codeable? - correct answer NO (some require radiologic/autopsy
findings)
Cranial nerve contusion is coded when there is what documented? - correct answer
weakness/paresthesia subtotal loss of function
Cranial nerve laceration is coded when what is documented? - correct answer paralysis/total
loss of function
What five (5) physical signs/manifestations are codeable as basilar skull fx? - correct answer 1)
raccoon's eyes (periorbital ecchymosis)
2) Battle's sign (mastoid ecchymosis)
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