CAISS Exam Questions and
Complete Solutions Graded A+
Boxed & Bold Text - Answer: Represent AIS coding rules and conventions and contain directives to assist
in the appropriate use of specific descriptions.
Brackets - Answer: Denote inclusive or exclusive information.
Parentheseses - Answer: Include synonyms or occasionally, non-clinical terms and provide a definition
for the injury description.
Semicolons - Answer: Separate injury descriptors that are comparable in severity.
Bold Type - Answer: Identifies an anatomical structure
Italics - Answer: Are used for proper-named anatomical structures or injuries, and for OIS grades.
AIS .1 - Answer: Minor
AIS .2 - Answer: Moderate
AIS .3 - Answer: Serious
AIS .4 - Answer: Severe
AIS .5 - Answer: Critical
AIS .6 - Answer: Maximum
,Range of AIS severity codes - Answer: 1-6
Is "DEATH" part of the AIS severity scale? - Answer: No
Does a linear relationship exist between AIS severity codes? - Answer: No
(T/F) Injuries within the same code may not be strictly compatible. - Answer: T
AIS .9 - Answer: Unknown
(T/F) The AIS single digit severity number indicates the relative severity of injury in an "average person"
who sustains the coded injury as his only injury. - Answer: T
Average Patient - Answer: Adult 25-40 years of age
Free of pre-existing conditions
Free of treatment complications
Receiving timely, appropriate care for the injury
Pre-dot Code - Answer: 6 digits to the left of decimal point
AIS Severity Number - Answer: A single digit to the right of the decimal point.
Body Region - Answer: The first number in the pre-dot code stands for?
Type of Anatomic Structure - Answer: The second number in the pre-dot code stands for?
Specific Anatomic Structure - Answer: The third & fourth numbers in the pre-dot code stands for?
,Level of injury within the specific body region and anatomic structure - Answer: The fifth & sixth
numbers in the pre-dot code stands for?
(T/F) AIS assesses the severity of single injuries. - Answer: T
(T/F) The ISS is the sum of the squares of the highest AIS in each of the (3) most severity injured ISS body
regions. - Answer: T
There are how many ISS body regions? - Answer: 6
ISS Body Regions - Answer: Head & Neck
Face
Chest
Abdominal & Pelvic Contents
Extremities & Pelvic Girdle
External
Head & Neck - Answer: Include injury to the brain, skull, cervical spine or neck organs.
(T/F) Asphyxia is assigned to the ISS Head region? - Answer: T
Face - Answer: Include injury to mouth, ears, eyes, nose and facial bones.
Chest - Answer: Include injury to abdominal and pelvic contents, including all lesions to internal organs
in the respective cavities and injuries to diaphragm, rib cage and thoracic spine.
(T/F) Drowning is assigned to the Chest region? - Answer: T
(T/F) The ISS is the sum of the squares of the highest AIS in each of the (5) most severity injured ISS body
regions. - Answer: F
, (T/F) There are 9 ISS body regions? - Answer: F
(T/F) Asphyxia is assigned to the ISS Chest region? - Answer: F
(T/F) Drowning is assigned to the Head & Neck region? - Answer: f
Abdomen and Pelvic Area - Answer: Include injury to Lumber spine lesions.
External - Answer: Injuries that include lacerations, contusions, abrasions, hypothermia, electrical injury,
whole body injury and burns are assigned to what region?
1-75 - Answer: The ISS score ranges from what to what?
(T/F) An ISS of 75 can be derived in 2 ways: one AIS .5 injury in each of three body regions or a single
AIS .6 injury. - Answer: T
Should patients with a AIS .9 code be included in research studies? - Answer: No
Underestimation of the ISS score - Answer: Assigning injuries to too few body regions can result in what?
Overestimation of the ISS Score - Answer: Assigning injuries to too many ISS body regions can result in
what?
Injury - Answer: The anatomic lesion resulting from a transfer of energy rather than a complication or
immediate sequelae is what?
Blunt, Penetration, Burns & Selected other Trauma - Answer: The AIS includes injuries from the what
mechanisms?
Complete Solutions Graded A+
Boxed & Bold Text - Answer: Represent AIS coding rules and conventions and contain directives to assist
in the appropriate use of specific descriptions.
Brackets - Answer: Denote inclusive or exclusive information.
Parentheseses - Answer: Include synonyms or occasionally, non-clinical terms and provide a definition
for the injury description.
Semicolons - Answer: Separate injury descriptors that are comparable in severity.
Bold Type - Answer: Identifies an anatomical structure
Italics - Answer: Are used for proper-named anatomical structures or injuries, and for OIS grades.
AIS .1 - Answer: Minor
AIS .2 - Answer: Moderate
AIS .3 - Answer: Serious
AIS .4 - Answer: Severe
AIS .5 - Answer: Critical
AIS .6 - Answer: Maximum
,Range of AIS severity codes - Answer: 1-6
Is "DEATH" part of the AIS severity scale? - Answer: No
Does a linear relationship exist between AIS severity codes? - Answer: No
(T/F) Injuries within the same code may not be strictly compatible. - Answer: T
AIS .9 - Answer: Unknown
(T/F) The AIS single digit severity number indicates the relative severity of injury in an "average person"
who sustains the coded injury as his only injury. - Answer: T
Average Patient - Answer: Adult 25-40 years of age
Free of pre-existing conditions
Free of treatment complications
Receiving timely, appropriate care for the injury
Pre-dot Code - Answer: 6 digits to the left of decimal point
AIS Severity Number - Answer: A single digit to the right of the decimal point.
Body Region - Answer: The first number in the pre-dot code stands for?
Type of Anatomic Structure - Answer: The second number in the pre-dot code stands for?
Specific Anatomic Structure - Answer: The third & fourth numbers in the pre-dot code stands for?
,Level of injury within the specific body region and anatomic structure - Answer: The fifth & sixth
numbers in the pre-dot code stands for?
(T/F) AIS assesses the severity of single injuries. - Answer: T
(T/F) The ISS is the sum of the squares of the highest AIS in each of the (3) most severity injured ISS body
regions. - Answer: T
There are how many ISS body regions? - Answer: 6
ISS Body Regions - Answer: Head & Neck
Face
Chest
Abdominal & Pelvic Contents
Extremities & Pelvic Girdle
External
Head & Neck - Answer: Include injury to the brain, skull, cervical spine or neck organs.
(T/F) Asphyxia is assigned to the ISS Head region? - Answer: T
Face - Answer: Include injury to mouth, ears, eyes, nose and facial bones.
Chest - Answer: Include injury to abdominal and pelvic contents, including all lesions to internal organs
in the respective cavities and injuries to diaphragm, rib cage and thoracic spine.
(T/F) Drowning is assigned to the Chest region? - Answer: T
(T/F) The ISS is the sum of the squares of the highest AIS in each of the (5) most severity injured ISS body
regions. - Answer: F
, (T/F) There are 9 ISS body regions? - Answer: F
(T/F) Asphyxia is assigned to the ISS Chest region? - Answer: F
(T/F) Drowning is assigned to the Head & Neck region? - Answer: f
Abdomen and Pelvic Area - Answer: Include injury to Lumber spine lesions.
External - Answer: Injuries that include lacerations, contusions, abrasions, hypothermia, electrical injury,
whole body injury and burns are assigned to what region?
1-75 - Answer: The ISS score ranges from what to what?
(T/F) An ISS of 75 can be derived in 2 ways: one AIS .5 injury in each of three body regions or a single
AIS .6 injury. - Answer: T
Should patients with a AIS .9 code be included in research studies? - Answer: No
Underestimation of the ISS score - Answer: Assigning injuries to too few body regions can result in what?
Overestimation of the ISS Score - Answer: Assigning injuries to too many ISS body regions can result in
what?
Injury - Answer: The anatomic lesion resulting from a transfer of energy rather than a complication or
immediate sequelae is what?
Blunt, Penetration, Burns & Selected other Trauma - Answer: The AIS includes injuries from the what
mechanisms?
