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CAISS Exam Study Guide with Verified
Solutions
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
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,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
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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?
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,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
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FIRST PUBLISHED: SEPTEMBER 2024
(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
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FIRST PUBLISHED: SEPTEMBER 2024
(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?
(T/F) The AIS sometime permits the coding of immediate sequelae, but withing strictly
defined rules? - Answer✔️✔️-T
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