TCAR Final Exam | Trauma Care After Resuscitation Complete
Practice Questions, Correct Answers & Detailed Rationales
(2026/2027)
Question 1 What is the primary pathophysiological mechanism driving
the Systemic Inflammatory Response Syndrome (SIRS) following severe
physical trauma?
• A. Uncontrolled release of endogenous pro-inflammatory
cytokines and inflammatory mediators in response to tissue injury
• B. Direct bacterial invasion of the bloodstream from initial skin
abrasions
• C. Complete exhaustion of pancreatic insulin production leading to
systemic ketoacidosis
• D. Primary malfunction of the renal glomeruli causing systemic
fluid overload
Correct Answer: A. Uncontrolled release of endogenous pro-
inflammatory cytokines and inflammatory mediators in response to
tissue injury
Detailed Rationale: Severe mechanical trauma causes massive tissue
destruction, triggering the systemic release of pro-inflammatory
cytokines (such as TNF-alpha, IL-1, and IL-6) that precipitate systemic
inflammation independent of infection.
Question 2 How does the neuroendocrine stress response immediately
affect metabolic function following severe trauma?
, • A. It induces hypermetabolism, insulin resistance, glycogenolysis,
and protein catabolism to mobilize energy substrates for vital
organs
• B. It causes profound hypoglycemia and total cessation of baseline
metabolic activity
• C. It promotes rapid anabolism and skeletal muscle hypertrophy
• D. It suppresses all autonomic nervous system output to conserve
total body heat
Correct Answer: A. It induces hypermetabolism, insulin resistance,
glycogenolysis, and protein catabolism to mobilize energy substrates for
vital organs
Detailed Rationale: The neuroendocrine surge (cortisol,
catecholamines, glucagon) shifts the body into a catabolic state,
breaking down glycogen, fat, and muscle protein to ensure immediate
glucose delivery to the brain and heart.
Question 3 Which triad of interrelated physiological derangements
represents the classic "Lethal Triad" in trauma resuscitation?
• A. Hypothermia, metabolic acidosis, and coagulopathy
• B. Hypertension, tachycardia, and tachypnea
• C. Hyperglycemia, hypercalcemia, and hyperkalemia
• D. Hypoglycemia, hypokalemia, and alkalosis
Correct Answer: A. Hypothermia, metabolic acidosis, and coagulopathy
,Detailed Rationale: Hypothermia, acidosis, and coagulopathy mutually
reinforce each other, severely impairing the clotting cascade and
significantly worsening patient mortality if left uncorrected.
Question 4 How is Cerebral Perfusion Pressure (CPP) calculated in a
patient with a traumatic brain injury (TBI)?
• A. Mean Arterial Pressure (MAP) minus Intracranial Pressure (ICP)
• B. Systolic Blood Pressure plus Diastolic Blood Pressure divided by
two
• C. Intracranial Pressure minus Central Venous Pressure
• D. Heart Rate multiplied by Stroke Volume
Correct Answer: A. Mean Arterial Pressure (MAP) minus Intracranial
Pressure (ICP)
Detailed Rationale: CPP reflects the pressure gradient driving blood
flow to the brain; maintaining an adequate MAP while monitoring ICP
ensures optimal cerebral perfusion and prevents secondary ischemic
injury.
Question 5 What is a critical nursing intervention when caring for an
external ventricular drain (EVD) monitoring intracranial pressure?
• A. Ensuring the transducer reference point (foramen of Monro /
external auditory meatus) remains level with the prescribed zero
height whenever the patient is repositioned
• B. Flushing the ventriculostomy catheter routinely every two
hours with heparinized saline
, • C. Clamping the drainage system continuously during all patient
nursing care activities
• D. Raising the collection chamber above the patient's head to
maximize CSF drainage speed
Correct Answer: A. Ensuring the transducer reference point (foramen of
Monro / external auditory meatus) remains level with the prescribed
zero height whenever the patient is repositioned
Detailed Rationale: Accurate ICP readings depend entirely on keeping
the transducer leveled with the patient's tragus/foramen of Monro. Any
change in patient position requires re-leveling and zeroing.
Question 6 Which physical exam findings strongly suggest a basilar skull
fracture?
• A. Battle's sign (mastoid ecchymosis), periorbital ecchymosis
(raccoon eyes), and cerebrospinal fluid (CSF) otorrhea or
rhinorrhea
• B. Symmetric pupillary constriction and absent deep tendon
reflexes
• C. Marked jugular venous distension and tracheal deviation
• D. Lower extremity petechiae and palpable purpura
Correct Answer: A. Battle's sign (mastoid ecchymosis), periorbital
ecchymosis (raccoon eyes), and cerebrospinal fluid (CSF) otorrhea or
rhinorrhea
Detailed Rationale: Basilar skull fractures involve the floor of the cranial
vault, commonly manifesting with localized bruising around the eyes
and ears, along with potential CSF leakage from the nose or ears.
Practice Questions, Correct Answers & Detailed Rationales
(2026/2027)
Question 1 What is the primary pathophysiological mechanism driving
the Systemic Inflammatory Response Syndrome (SIRS) following severe
physical trauma?
• A. Uncontrolled release of endogenous pro-inflammatory
cytokines and inflammatory mediators in response to tissue injury
• B. Direct bacterial invasion of the bloodstream from initial skin
abrasions
• C. Complete exhaustion of pancreatic insulin production leading to
systemic ketoacidosis
• D. Primary malfunction of the renal glomeruli causing systemic
fluid overload
Correct Answer: A. Uncontrolled release of endogenous pro-
inflammatory cytokines and inflammatory mediators in response to
tissue injury
Detailed Rationale: Severe mechanical trauma causes massive tissue
destruction, triggering the systemic release of pro-inflammatory
cytokines (such as TNF-alpha, IL-1, and IL-6) that precipitate systemic
inflammation independent of infection.
Question 2 How does the neuroendocrine stress response immediately
affect metabolic function following severe trauma?
, • A. It induces hypermetabolism, insulin resistance, glycogenolysis,
and protein catabolism to mobilize energy substrates for vital
organs
• B. It causes profound hypoglycemia and total cessation of baseline
metabolic activity
• C. It promotes rapid anabolism and skeletal muscle hypertrophy
• D. It suppresses all autonomic nervous system output to conserve
total body heat
Correct Answer: A. It induces hypermetabolism, insulin resistance,
glycogenolysis, and protein catabolism to mobilize energy substrates for
vital organs
Detailed Rationale: The neuroendocrine surge (cortisol,
catecholamines, glucagon) shifts the body into a catabolic state,
breaking down glycogen, fat, and muscle protein to ensure immediate
glucose delivery to the brain and heart.
Question 3 Which triad of interrelated physiological derangements
represents the classic "Lethal Triad" in trauma resuscitation?
• A. Hypothermia, metabolic acidosis, and coagulopathy
• B. Hypertension, tachycardia, and tachypnea
• C. Hyperglycemia, hypercalcemia, and hyperkalemia
• D. Hypoglycemia, hypokalemia, and alkalosis
Correct Answer: A. Hypothermia, metabolic acidosis, and coagulopathy
,Detailed Rationale: Hypothermia, acidosis, and coagulopathy mutually
reinforce each other, severely impairing the clotting cascade and
significantly worsening patient mortality if left uncorrected.
Question 4 How is Cerebral Perfusion Pressure (CPP) calculated in a
patient with a traumatic brain injury (TBI)?
• A. Mean Arterial Pressure (MAP) minus Intracranial Pressure (ICP)
• B. Systolic Blood Pressure plus Diastolic Blood Pressure divided by
two
• C. Intracranial Pressure minus Central Venous Pressure
• D. Heart Rate multiplied by Stroke Volume
Correct Answer: A. Mean Arterial Pressure (MAP) minus Intracranial
Pressure (ICP)
Detailed Rationale: CPP reflects the pressure gradient driving blood
flow to the brain; maintaining an adequate MAP while monitoring ICP
ensures optimal cerebral perfusion and prevents secondary ischemic
injury.
Question 5 What is a critical nursing intervention when caring for an
external ventricular drain (EVD) monitoring intracranial pressure?
• A. Ensuring the transducer reference point (foramen of Monro /
external auditory meatus) remains level with the prescribed zero
height whenever the patient is repositioned
• B. Flushing the ventriculostomy catheter routinely every two
hours with heparinized saline
, • C. Clamping the drainage system continuously during all patient
nursing care activities
• D. Raising the collection chamber above the patient's head to
maximize CSF drainage speed
Correct Answer: A. Ensuring the transducer reference point (foramen of
Monro / external auditory meatus) remains level with the prescribed
zero height whenever the patient is repositioned
Detailed Rationale: Accurate ICP readings depend entirely on keeping
the transducer leveled with the patient's tragus/foramen of Monro. Any
change in patient position requires re-leveling and zeroing.
Question 6 Which physical exam findings strongly suggest a basilar skull
fracture?
• A. Battle's sign (mastoid ecchymosis), periorbital ecchymosis
(raccoon eyes), and cerebrospinal fluid (CSF) otorrhea or
rhinorrhea
• B. Symmetric pupillary constriction and absent deep tendon
reflexes
• C. Marked jugular venous distension and tracheal deviation
• D. Lower extremity petechiae and palpable purpura
Correct Answer: A. Battle's sign (mastoid ecchymosis), periorbital
ecchymosis (raccoon eyes), and cerebrospinal fluid (CSF) otorrhea or
rhinorrhea
Detailed Rationale: Basilar skull fractures involve the floor of the cranial
vault, commonly manifesting with localized bruising around the eyes
and ears, along with potential CSF leakage from the nose or ears.
