CSTR EXAM SET EXAM (2026) UPDATE Verified Questions And Answers | Latest Already
Graded A+ UPDATE |2026
1. S00-S99
• Exclude superficial injuries
• Falling in S00-S99
• Include traumatic injuries
• All of the above
Correct Answer: All of the above
Rationale: The S00-S99 code range specifically excludes superficial injuries, includes
traumatic injuries, and covers injuries resulting from falling.
2. T07
• Unspecified multi injuries
• Multiple injuries not otherwise specified
• A code used when specific injuries are not documented
• All of the above
Correct Answer: All of the above
Rationale: T07 is used when a patient has multiple injuries but the specific injuries are
not documented or cannot be specified.
3. T14
• Injury of unspecified body region
• Used when the specific body region is not documented
• A default code for injuries without location specificity
• All of the above
Correct Answer: All of the above
Rationale: T14 is assigned when an injury is documented but the body region affected
is not specified.
4. T20-T28
• Burns by body region
• Codes specific to burn location
, • Classifies burns based on anatomical site
• All of the above
Correct Answer: All of the above
Rationale: The T20-T28 range classifies burns according to the specific body region
affected.
5. T30-T32
• Burns by TBSA percentages
• Codes based on total body surface area burned
• Used for burns classified by extent rather than location
• All of the above
Correct Answer: All of the above
Rationale: T30-T32 codes classify burns according to the percentage of total body
surface area involved, not by specific location.
6. T79.A1-T79.A9
• Traumatic compartment syndrome
• Codes for compartment syndrome resulting from trauma
• Specific to traumatic etiology
• All of the above
Correct Answer: All of the above
Rationale: T79.A1-T79.A9 are specific codes for compartment syndrome that occurs as
a result of traumatic injury.
7. ACS Inclusion
• Hospital admit, OSH tx by PV or EMS, Death from traumatic injuries
• Criteria for including cases in trauma registry
• Standards set by American College of Surgeons
• All of the above
Correct Answer: All of the above
Rationale: ACS inclusion criteria define which trauma patients should be included in
the registry: those admitted to the hospital, transferred from another hospital by
private vehicle or EMS, or who die from traumatic injuries.
,8. External Cause Code Hierarchy
•
1. Child and Adult Abuse 2. Terrorism 3. Cataclysmic Events 4. Transport accidents
5. Cause that causes the most serious injury
• A priority order for selecting external cause codes
• Determines which code to use when multiple causes exist
• All of the above
Correct Answer: All of the above
Rationale: The external cause code hierarchy provides a priority order for selecting
which code to use when multiple external causes are present, with abuse and
terrorism taking highest priority.
9. Injury Severity Scale
•
1. Minor 2. Moderate 3. Serious 4. Severe 5. Critical 6. Maximum Unsurvivable 9.
Injured but severity unk
• AIS severity scale from 1 (minor) to 6 (maximum)
• Includes code 9 for injured but severity unknown
• All of the above
Correct Answer: All of the above
Rationale: The AIS severity scale ranges from 1 (minor) to 6 (maximum unsurvivable),
with code 9 used when injury is present but severity cannot be determined.
10. ICU LOS
• any partial or full day in ICU=1 day
• Counted as one day regardless of admission/discharge time
• Standard definition for registry reporting
• All of the above
Correct Answer: All of the above
Rationale: ICU length of stay is counted as one day for any partial or full day the
patient spends in the intensive care unit, regardless of admission or discharge time.
11. Vent days
, • any partial or full day=1 day
• Each day on mechanical ventilation counts as one day
• Includes partial days as full days
• All of the above
Correct Answer: All of the above
Rationale: Ventilator days are counted as one day for any partial or full day the patient
receives mechanical ventilation.
12. PRBCs
• packed red blood cells
• Blood product used for transfusion
• Contains red blood cells for oxygen-carrying capacity
• All of the above
Correct Answer: All of the above
Rationale: PRBCs (packed red blood cells) are a blood product consisting of red blood
cells separated from whole blood for transfusion to improve oxygen-carrying capacity.
13. FFP, LP
• fresh frozen plasma, liquid plasma
• Blood products containing clotting factors
• Used for coagulation replacement
• All of the above
Correct Answer: All of the above
Rationale: FFP (fresh frozen plasma) and LP (liquid plasma) are blood products that
contain clotting factors used to correct coagulopathy.
14. PLTS
• platelets
• Blood product for clotting
• Used when platelet counts are low
• All of the above
Correct Answer: All of the above
Graded A+ UPDATE |2026
1. S00-S99
• Exclude superficial injuries
• Falling in S00-S99
• Include traumatic injuries
• All of the above
Correct Answer: All of the above
Rationale: The S00-S99 code range specifically excludes superficial injuries, includes
traumatic injuries, and covers injuries resulting from falling.
2. T07
• Unspecified multi injuries
• Multiple injuries not otherwise specified
• A code used when specific injuries are not documented
• All of the above
Correct Answer: All of the above
Rationale: T07 is used when a patient has multiple injuries but the specific injuries are
not documented or cannot be specified.
3. T14
• Injury of unspecified body region
• Used when the specific body region is not documented
• A default code for injuries without location specificity
• All of the above
Correct Answer: All of the above
Rationale: T14 is assigned when an injury is documented but the body region affected
is not specified.
4. T20-T28
• Burns by body region
• Codes specific to burn location
, • Classifies burns based on anatomical site
• All of the above
Correct Answer: All of the above
Rationale: The T20-T28 range classifies burns according to the specific body region
affected.
5. T30-T32
• Burns by TBSA percentages
• Codes based on total body surface area burned
• Used for burns classified by extent rather than location
• All of the above
Correct Answer: All of the above
Rationale: T30-T32 codes classify burns according to the percentage of total body
surface area involved, not by specific location.
6. T79.A1-T79.A9
• Traumatic compartment syndrome
• Codes for compartment syndrome resulting from trauma
• Specific to traumatic etiology
• All of the above
Correct Answer: All of the above
Rationale: T79.A1-T79.A9 are specific codes for compartment syndrome that occurs as
a result of traumatic injury.
7. ACS Inclusion
• Hospital admit, OSH tx by PV or EMS, Death from traumatic injuries
• Criteria for including cases in trauma registry
• Standards set by American College of Surgeons
• All of the above
Correct Answer: All of the above
Rationale: ACS inclusion criteria define which trauma patients should be included in
the registry: those admitted to the hospital, transferred from another hospital by
private vehicle or EMS, or who die from traumatic injuries.
,8. External Cause Code Hierarchy
•
1. Child and Adult Abuse 2. Terrorism 3. Cataclysmic Events 4. Transport accidents
5. Cause that causes the most serious injury
• A priority order for selecting external cause codes
• Determines which code to use when multiple causes exist
• All of the above
Correct Answer: All of the above
Rationale: The external cause code hierarchy provides a priority order for selecting
which code to use when multiple external causes are present, with abuse and
terrorism taking highest priority.
9. Injury Severity Scale
•
1. Minor 2. Moderate 3. Serious 4. Severe 5. Critical 6. Maximum Unsurvivable 9.
Injured but severity unk
• AIS severity scale from 1 (minor) to 6 (maximum)
• Includes code 9 for injured but severity unknown
• All of the above
Correct Answer: All of the above
Rationale: The AIS severity scale ranges from 1 (minor) to 6 (maximum unsurvivable),
with code 9 used when injury is present but severity cannot be determined.
10. ICU LOS
• any partial or full day in ICU=1 day
• Counted as one day regardless of admission/discharge time
• Standard definition for registry reporting
• All of the above
Correct Answer: All of the above
Rationale: ICU length of stay is counted as one day for any partial or full day the
patient spends in the intensive care unit, regardless of admission or discharge time.
11. Vent days
, • any partial or full day=1 day
• Each day on mechanical ventilation counts as one day
• Includes partial days as full days
• All of the above
Correct Answer: All of the above
Rationale: Ventilator days are counted as one day for any partial or full day the patient
receives mechanical ventilation.
12. PRBCs
• packed red blood cells
• Blood product used for transfusion
• Contains red blood cells for oxygen-carrying capacity
• All of the above
Correct Answer: All of the above
Rationale: PRBCs (packed red blood cells) are a blood product consisting of red blood
cells separated from whole blood for transfusion to improve oxygen-carrying capacity.
13. FFP, LP
• fresh frozen plasma, liquid plasma
• Blood products containing clotting factors
• Used for coagulation replacement
• All of the above
Correct Answer: All of the above
Rationale: FFP (fresh frozen plasma) and LP (liquid plasma) are blood products that
contain clotting factors used to correct coagulopathy.
14. PLTS
• platelets
• Blood product for clotting
• Used when platelet counts are low
• All of the above
Correct Answer: All of the above
