Trauma Care After Resuscitation TCAR Exam Prep |
Comprehensive Practice Test & Detailed Explanations and
solution 2026/2027
Question 1
What is the primary objective of the primary survey (ABCDE approach)
during initial trauma resuscitation?
A. To identify and immediately treat life-threatening conditions that
pose an immediate risk to life
B. To obtain a complete past medical history from family members
C. To perform a comprehensive head-to-toe physical examination and
apply dressings
D. To calculate the exact 24-hour nutritional and caloric requirements
Correct Answer: A. To identify and immediately treat life-threatening
conditions that pose an immediate risk to life
Detailed Rationale: The primary survey follows a systematic sequence
(Airway with cervical spine immobilization, Breathing, Circulation,
Disability, and Exposure) to rapidly detect and manage life-threatening
threats.
Question 2
What is the primary purpose of the secondary survey in trauma care?
A. To perform a detailed, head-to-toe evaluation to identify all other
non-immediate or occult injuries after the patient is stabilized
,B. To replace the primary survey entirely upon arrival in the emergency
department
C. To discharge the patient home immediately without further
observation
D. To administer general anesthesia for elective surgical procedures
Correct Answer: A. To perform a detailed, head-to-toe evaluation to
identify all other non-immediate or occult injuries after the patient is
stabilized
Detailed Rationale: Once life-threatening injuries are addressed in the
primary survey, the secondary survey uncovers secondary injuries from
head to toe, including musculoskeletal, soft tissue, and spinal
evaluations.
Question 3
What pathological triad constitutes the "lethal triad" of trauma?
A. Hypothermia, coagulopathy, and acidosis
B. Hypertension, tachycardia, and fever
C. Hypercalcemia, alkalosis, and hyperglycemia
D. Bradycardia, hypotension, and hypoxemia
Correct Answer: A. Hypothermia, coagulopathy, and acidosis
Detailed Rationale: These three factors exacerbate one another in a
vicious cycle: acidosis and hypothermia impair coagulation enzyme
activity, leading to worsening coagulopathy and continued hemorrhage.
Question 4
,Which class of acute hemorrhage is characterized by a heart rate > 120
bpm, blood pressure drop, confused or anxious mental status, and a
urine output of 20-30 mL/h?
A. Class III hemorrhage (15-30% blood loss) / wait, Class III is 30-40%.
Let's check blood loss classes.
B. Class II hemorrhage
C. Class III hemorrhage
D. Class IV hemorrhage
Correct Answer: C. Class III hemorrhage
Detailed Rationale: Class III hemorrhage represents a 30-40% blood
volume loss, manifesting with significant hemodynamic instability,
tachycardia, tachypnea, and altered mental status requiring rapid blood
product transfusion.
Question 5
What is the primary compensatory mechanism of the cardiovascular
system during early Class I or II hypovolemic shock?
A. Sympathetically mediated vasoconstriction, tachycardia, and
increased myocardial contractility to maintain perfusion to vital organs
B. Parasympathetic stimulation leading to profound bradycardia and
vasodilation
C. Immediate cessation of all renal blood flow without compensatory
changes
D. Massive expansion of total circulating blood volume via interstitial
fluid shift
, Correct Answer: A. Sympathetically mediated vasoconstriction,
tachycardia, and increased myocardial contractility to maintain
perfusion to vital organs
Detailed Rationale: Baroreceptors detect falling intravascular volume
and trigger sympathetic nervous system activation to preserve cerebral
and coronary perfusion at the expense of skin and splanchnic beds.
Question 6
What defines Trauma-Induced Coagulopathy (TIC)?
A. An endogenous, early coagulopathy triggered by tissue trauma and
shock, independent of dilutional factors
B. Coagulopathy caused solely by administering 10 liters of normal
saline
C. A congenital bleeding disorder diagnosed for the first time in the ICU
D. Clotting dysfunction caused exclusively by oral anticoagulants
Correct Answer: A. An endogenous, early coagulopathy triggered by
tissue trauma and shock, independent of dilutional factors
Detailed Rationale: TIC involves endothelial damage, platelet
dysfunction, hyperfibrinolysis, and protein C activation occurring
immediately after severe traumatic injury.
Question 7
What does an abnormally negative base deficit (e.g., -8 mEq/L) indicate
in a trauma patient?
A. Metabolic acidosis resulting from tissue hypoperfusion and anaerobic
cellular metabolism
Comprehensive Practice Test & Detailed Explanations and
solution 2026/2027
Question 1
What is the primary objective of the primary survey (ABCDE approach)
during initial trauma resuscitation?
A. To identify and immediately treat life-threatening conditions that
pose an immediate risk to life
B. To obtain a complete past medical history from family members
C. To perform a comprehensive head-to-toe physical examination and
apply dressings
D. To calculate the exact 24-hour nutritional and caloric requirements
Correct Answer: A. To identify and immediately treat life-threatening
conditions that pose an immediate risk to life
Detailed Rationale: The primary survey follows a systematic sequence
(Airway with cervical spine immobilization, Breathing, Circulation,
Disability, and Exposure) to rapidly detect and manage life-threatening
threats.
Question 2
What is the primary purpose of the secondary survey in trauma care?
A. To perform a detailed, head-to-toe evaluation to identify all other
non-immediate or occult injuries after the patient is stabilized
,B. To replace the primary survey entirely upon arrival in the emergency
department
C. To discharge the patient home immediately without further
observation
D. To administer general anesthesia for elective surgical procedures
Correct Answer: A. To perform a detailed, head-to-toe evaluation to
identify all other non-immediate or occult injuries after the patient is
stabilized
Detailed Rationale: Once life-threatening injuries are addressed in the
primary survey, the secondary survey uncovers secondary injuries from
head to toe, including musculoskeletal, soft tissue, and spinal
evaluations.
Question 3
What pathological triad constitutes the "lethal triad" of trauma?
A. Hypothermia, coagulopathy, and acidosis
B. Hypertension, tachycardia, and fever
C. Hypercalcemia, alkalosis, and hyperglycemia
D. Bradycardia, hypotension, and hypoxemia
Correct Answer: A. Hypothermia, coagulopathy, and acidosis
Detailed Rationale: These three factors exacerbate one another in a
vicious cycle: acidosis and hypothermia impair coagulation enzyme
activity, leading to worsening coagulopathy and continued hemorrhage.
Question 4
,Which class of acute hemorrhage is characterized by a heart rate > 120
bpm, blood pressure drop, confused or anxious mental status, and a
urine output of 20-30 mL/h?
A. Class III hemorrhage (15-30% blood loss) / wait, Class III is 30-40%.
Let's check blood loss classes.
B. Class II hemorrhage
C. Class III hemorrhage
D. Class IV hemorrhage
Correct Answer: C. Class III hemorrhage
Detailed Rationale: Class III hemorrhage represents a 30-40% blood
volume loss, manifesting with significant hemodynamic instability,
tachycardia, tachypnea, and altered mental status requiring rapid blood
product transfusion.
Question 5
What is the primary compensatory mechanism of the cardiovascular
system during early Class I or II hypovolemic shock?
A. Sympathetically mediated vasoconstriction, tachycardia, and
increased myocardial contractility to maintain perfusion to vital organs
B. Parasympathetic stimulation leading to profound bradycardia and
vasodilation
C. Immediate cessation of all renal blood flow without compensatory
changes
D. Massive expansion of total circulating blood volume via interstitial
fluid shift
, Correct Answer: A. Sympathetically mediated vasoconstriction,
tachycardia, and increased myocardial contractility to maintain
perfusion to vital organs
Detailed Rationale: Baroreceptors detect falling intravascular volume
and trigger sympathetic nervous system activation to preserve cerebral
and coronary perfusion at the expense of skin and splanchnic beds.
Question 6
What defines Trauma-Induced Coagulopathy (TIC)?
A. An endogenous, early coagulopathy triggered by tissue trauma and
shock, independent of dilutional factors
B. Coagulopathy caused solely by administering 10 liters of normal
saline
C. A congenital bleeding disorder diagnosed for the first time in the ICU
D. Clotting dysfunction caused exclusively by oral anticoagulants
Correct Answer: A. An endogenous, early coagulopathy triggered by
tissue trauma and shock, independent of dilutional factors
Detailed Rationale: TIC involves endothelial damage, platelet
dysfunction, hyperfibrinolysis, and protein C activation occurring
immediately after severe traumatic injury.
Question 7
What does an abnormally negative base deficit (e.g., -8 mEq/L) indicate
in a trauma patient?
A. Metabolic acidosis resulting from tissue hypoperfusion and anaerobic
cellular metabolism
