TCAR POST | TCAR POST TEST EXAM 50
QUESTIONS AND CORRECT {VERIFIED}
ANSWERS NEWEST UPDATE|ALREADY
GRADED A+2026
Question 1
The nurse is caring for a patient who was thrown from a horse and has a decreased
level of consciousness, decorticate posturing, and hyperthermia. These findings are
consistent with:
A. Diffuse axonal injury
B. Subdural hematoma
C. Epidural hematoma
D. Intracerebral hematoma
Correct ,,,ANSWER,,,: A. Diffuse axonal injury
Rationale: Decorticate posturing (flexion of arms, extension of legs) indicates
damage above the red nucleus, typically from diffuse axonal injury (DAI) caused
by rotational acceleration-deceleration forces. DAI commonly presents with
immediate loss of consciousness, posturing, and autonomic dysfunction including
hyperthermia due to hypothalamic involvement. Focal hematomas (subdural,
epidural, intracerebral) may cause posturing but are less likely to present with this
specific triad of findings.
Question 2
Helmets and automobile airbags work because they:
A. Prevent blows to the head
,B. Reduce acceleration injuries
C. Increase deceleration speed
D. Add deceleration distance
Correct ,,,ANSWER,,,: B. Reduce acceleration injuries
Rationale: Helmets and airbags work by extending the time over which
deceleration occurs, thereby reducing the force of acceleration/deceleration
injuries. By adding distance to the stopping process, they decrease the g-forces
applied to the body. This is based on the physics principle that force = mass ×
acceleration; increasing stopping distance decreases acceleration, thus decreasing
force.
Question 3
Which of the following statements best describes knife wounds?
A. Low velocity; temporary cavity depends on knife size; damage usually
extensive
B. Low velocity; temporary cavity is insignificant; damage limited to structures
directly in object's path
C. High velocity; temporary cavity will be small; damage affects structures at some
distance from wound tract
D. High velocity; temporary cavity may be massive; damage results in widespread
tissue destruction
Correct ,,,ANSWER,,,: B. Low velocity; temporary cavity is insignificant;
damage limited to structures directly in object's path
Rationale: Knife wounds are low-velocity injuries. Unlike high-velocity projectiles
(bullets), knives do not create a significant temporary cavity because they displace
rather than compress tissue. Damage is typically limited to structures directly in the
path of the blade, though sharp objects can also cause injury by laceration of
adjacent structures.
, Question 4
Injury to which body structure is commonly a DELAYED finding in the blast
trauma patient?
A. Heart
B. Bladder
C. Bowel
D. Spleen
Correct ,,,ANSWER,,,: C. Bowel
Rationale: Blast injuries are classified as primary (overpressure wave), secondary
(flying debris), tertiary (blunt impact), and quaternary (other effects). Bowel injury
from primary blast effect can present as a delayed finding because the overpressure
wave causes microhemorrhages and serosal tears that may take hours to days to
become clinically apparent with peritonitis. Hollow organ injury should be
suspected in any patient exposed to significant blast overpressure.
Question 5
Shock occurs when:
A. The sodium-potassium pump fails
B. ATP levels are less than lactic acid levels
C. Cellular oxygen demand is greater than supply
D. Aerobic metabolism exceeds anaerobic metabolism
Correct ,,,ANSWER,,,: C. Cellular oxygen demand is greater than supply
Rationale: Shock is defined as a state of inadequate tissue perfusion where cellular
oxygen delivery is insufficient to meet metabolic demand. This leads to a shift
from aerobic to anaerobic metabolism, resulting in lactic acidosis. The other
options describe consequences of shock rather than its defining mechanism.
Question 6
_________ shock is the most common type of shock immediately after traumatic
QUESTIONS AND CORRECT {VERIFIED}
ANSWERS NEWEST UPDATE|ALREADY
GRADED A+2026
Question 1
The nurse is caring for a patient who was thrown from a horse and has a decreased
level of consciousness, decorticate posturing, and hyperthermia. These findings are
consistent with:
A. Diffuse axonal injury
B. Subdural hematoma
C. Epidural hematoma
D. Intracerebral hematoma
Correct ,,,ANSWER,,,: A. Diffuse axonal injury
Rationale: Decorticate posturing (flexion of arms, extension of legs) indicates
damage above the red nucleus, typically from diffuse axonal injury (DAI) caused
by rotational acceleration-deceleration forces. DAI commonly presents with
immediate loss of consciousness, posturing, and autonomic dysfunction including
hyperthermia due to hypothalamic involvement. Focal hematomas (subdural,
epidural, intracerebral) may cause posturing but are less likely to present with this
specific triad of findings.
Question 2
Helmets and automobile airbags work because they:
A. Prevent blows to the head
,B. Reduce acceleration injuries
C. Increase deceleration speed
D. Add deceleration distance
Correct ,,,ANSWER,,,: B. Reduce acceleration injuries
Rationale: Helmets and airbags work by extending the time over which
deceleration occurs, thereby reducing the force of acceleration/deceleration
injuries. By adding distance to the stopping process, they decrease the g-forces
applied to the body. This is based on the physics principle that force = mass ×
acceleration; increasing stopping distance decreases acceleration, thus decreasing
force.
Question 3
Which of the following statements best describes knife wounds?
A. Low velocity; temporary cavity depends on knife size; damage usually
extensive
B. Low velocity; temporary cavity is insignificant; damage limited to structures
directly in object's path
C. High velocity; temporary cavity will be small; damage affects structures at some
distance from wound tract
D. High velocity; temporary cavity may be massive; damage results in widespread
tissue destruction
Correct ,,,ANSWER,,,: B. Low velocity; temporary cavity is insignificant;
damage limited to structures directly in object's path
Rationale: Knife wounds are low-velocity injuries. Unlike high-velocity projectiles
(bullets), knives do not create a significant temporary cavity because they displace
rather than compress tissue. Damage is typically limited to structures directly in the
path of the blade, though sharp objects can also cause injury by laceration of
adjacent structures.
, Question 4
Injury to which body structure is commonly a DELAYED finding in the blast
trauma patient?
A. Heart
B. Bladder
C. Bowel
D. Spleen
Correct ,,,ANSWER,,,: C. Bowel
Rationale: Blast injuries are classified as primary (overpressure wave), secondary
(flying debris), tertiary (blunt impact), and quaternary (other effects). Bowel injury
from primary blast effect can present as a delayed finding because the overpressure
wave causes microhemorrhages and serosal tears that may take hours to days to
become clinically apparent with peritonitis. Hollow organ injury should be
suspected in any patient exposed to significant blast overpressure.
Question 5
Shock occurs when:
A. The sodium-potassium pump fails
B. ATP levels are less than lactic acid levels
C. Cellular oxygen demand is greater than supply
D. Aerobic metabolism exceeds anaerobic metabolism
Correct ,,,ANSWER,,,: C. Cellular oxygen demand is greater than supply
Rationale: Shock is defined as a state of inadequate tissue perfusion where cellular
oxygen delivery is insufficient to meet metabolic demand. This leads to a shift
from aerobic to anaerobic metabolism, resulting in lactic acidosis. The other
options describe consequences of shock rather than its defining mechanism.
Question 6
_________ shock is the most common type of shock immediately after traumatic
