TNCC 9th Edition Updated 2026 | Trauma Nursing Core Course
Certification Study Guide, Practice Exam Questions and Answers,
Comprehensive Review, Exam Prep Test Bank, Trauma Patient
Assessment, Emergency Nursing Interventions, Rapid Trauma
Evaluation, Injury Management Protocols, Critical Care Concepts,
and Detailed Rationales for Certification Readiness
Question 1: What is the primary goal of a trauma system? A. Decrease hospital
length of stay B. Ensure all trauma patients undergo surgery C. Deliver the right care to
the right patient at the right time D. Reduce prehospital transport times CORRECT
ANSWER: C. Deliver the right care to the right patient at the right time Rationale: The
core purpose of a trauma system is to ensure optimal resource allocation and timely
care.
Question 2: Which injury mechanism automatically qualifies a patient for highest-
level trauma triage? A. Fall from 10 feet B. Pedestrian struck at 15 mph C. Motor vehicle
crash with 5 mph damage D. Sports-related concussion CORRECT ANSWER: B.
Pedestrian struck at 15 mph Rationale: Pedestrian struck mechanisms involve high
energy transfer and automatically trigger highest-level triage.
Question 3: What is the first step in the primary survey? A. Breathing assessment B.
Circulation assessment C. Airway maintenance with C-spine restriction D. Disability
assessment CORRECT ANSWER: C. Airway maintenance with C-spine restriction
Rationale: Airway with cervical spine protection is always the first priority in the ABCDE
primary survey.
Question 4: Which intervention is most appropriate for a trauma patient with an
absent gag reflex? A. Nasopharyngeal airway B. Oropharyngeal airway C. Bag-valve-
mask ventilation D. Endotracheal intubation CORRECT ANSWER: B. Oropharyngeal
airway Rationale: An oropharyngeal airway is indicated for unconscious patients
lacking a gag reflex to prevent aspiration.
Question 5: What is the preferred method for opening the airway in a trauma
patient? A. Head tilt-chin lift B. Jaw-thrust maneuver C. Neck hyperextension D. Cricoid
pressure CORRECT ANSWER: B. Jaw-thrust maneuver Rationale: The jaw-thrust
maneuver opens the airway without moving the cervical spine.
Question 6: A patient has severe facial trauma and cannot be intubated. What is the
immediate next step? A. Insert a laryngeal mask airway B. Perform a surgical
cricothyroidotomy C. Administer high-flow oxygen via nonrebreather D. Perform a
tracheostomy CORRECT ANSWER: B. Perform a surgical cricothyroidotomy
Rationale: A surgical airway is indicated when a patient cannot be intubated and cannot
be ventilated.
Question 7: Which complication is most immediately life-threatening during the
breathing assessment? A. Simple pneumothorax B. Tension pneumothorax C. Rib
fracture D. Pulmonary contusion CORRECT ANSWER: B. Tension pneumothorax
,Rationale: Tension pneumothorax causes obstructive shock and requires immediate
needle decompression.
Question 8: Where is the preferred site for needle decompression in an adult? A.
2nd intercostal space, midclavicular line B. 5th intercostal space, anterior axillary line
C. 4th intercostal space, midaxillary line D. 2nd intercostal space, midaxillary line
CORRECT ANSWER: B. 5th intercostal space, anterior axillary line Rationale: TNCC
9th edition recommends the 5th intercostal space at the anterior axillary line for adults.
Question 9: What clinical sign differentiates a tension pneumothorax from a simple
pneumothorax? A. Absent breath sounds B. Tracheal deviation and hypotension C.
Tachypnea D. Pleuritic chest pain CORRECT ANSWER: B. Tracheal deviation and
hypotension Rationale: Tracheal deviation and hemodynamic instability indicate
tension physiology and obstructive shock.
Question 10: Which finding is characteristic of a flail chest? A. Tracheal deviation B.
Paradoxical chest wall movement C. Subcutaneous emphysema D. Hyperresonance to
percussion CORRECT ANSWER: B. Paradoxical chest wall movement Rationale: Flail
chest occurs when three or more adjacent ribs are fractured in two or more places,
causing paradoxical movement.
Question 11: What is the primary treatment for a flail chest? A. Needle
decompression B. Positive pressure ventilation and pain management C. Chest tube
insertion D. Intercostal nerve block CORRECT ANSWER: B. Positive pressure
ventilation and pain management Rationale: Positive pressure ventilation internally
splints the flail segment, while pain control improves tidal volume.
Question 12: A patient presents with muffled heart sounds, jugular venous
distention, and hypotension. What is the diagnosis? A. Tension pneumothorax B.
Cardiac tamponade C. Massive hemothorax D. Myocardial contusion CORRECT
ANSWER: B. Cardiac tamponade Rationale: These are Beck's triad, the classic signs of
cardiac tamponade.
Question 13: What is the most definitive treatment for cardiac tamponade? A.
Intravenous fluid bolus B. Pericardiocentesis or thoracotomy C. Chest tube insertion D.
Administration of vasopressors CORRECT ANSWER: B. Pericardiocentesis or
thoracotomy Rationale: Removing the pericardial blood via pericardiocentesis or
surgical thoracotomy is definitive.
Question 14: Which type of shock is most common in trauma patients? A.
Cardiogenic B. Hypovolemic C. Neurogenic D. Septic CORRECT ANSWER: B.
Hypovolemic Rationale: Hemorrhage leading to hypovolemic shock is the most
frequent cause of shock in trauma.
Question 15: What is the earliest clinical sign of hypovolemic shock? A.
Hypotension B. Tachycardia C. Bradycardia D. Altered mental status CORRECT
ANSWER: B. Tachycardia Rationale: Tachycardia is a compensatory mechanism and
often the first sign of volume loss.
,Question 16: In which class of hemorrhagic shock does a patient typically present
with a narrow pulse pressure and confusion? A. Class I B. Class II C. Class III D. Class
IV CORRECT ANSWER: C. Class III Rationale: Class III shock involves 31-40% blood
loss, causing significant tachycardia, narrowed pulse pressure, and confusion.
Question 17: Where should a pelvic binder be applied? A. Iliac crests B. Greater
trochanters C. Pubic symphysis D. Anterior superior iliac spines CORRECT ANSWER: B.
Greater trochanters Rationale: Placement at the greater trochanters effectively
reduces pelvic volume and stabilizes fractures.
Question 18: What is the primary purpose of applying a pelvic binder? A. Reduce
pain B. Control venous and cancellous bone bleeding C. Prevent deep vein thrombosis
D. Align the lower extremities CORRECT ANSWER: B. Control venous and cancellous
bone bleeding Rationale: Pelvic binders reduce pelvic volume, promoting tamponade
of venous and bone bleeding.
Question 19: Which intervention is most appropriate for controlling severe
extremity hemorrhage? A. Direct pressure and elevation B. Application of a tourniquet
C. Pressure dressing D. Hemostatic agent CORRECT ANSWER: B. Application of a
tourniquet Rationale: Tourniquets are the most effective intervention for life-
threatening extremity hemorrhage.
Question 20: What is the primary neurologic assessment tool used in the primary
survey? A. Mini-Mental State Examination B. Glasgow Coma Scale C. Montreal
Cognitive Assessment D. NIH Stroke Scale CORRECT ANSWER: B. Glasgow Coma
Scale Rationale: The GCS rapidly assesses eye, verbal, and motor responses to
determine neurologic status.
Question 21: A patient opens eyes to pain, makes incomprehensible sounds, and
exhibits abnormal flexion. What is the GCS? A. 6 B. 7 C. 8 D. 9 CORRECT ANSWER:
C. 8 Rationale: Eye opening to pain (2), incomprehensible sounds (2), abnormal flexion
(4) equals 8.
Question 22: A GCS score of 8 or less indicates the need for what intervention? A.
Nasotracheal intubation B. Definitive airway management C. Hyperventilation D.
Administration of mannitol CORRECT ANSWER: B. Definitive airway management
Rationale: A GCS of 8 or less means the patient cannot protect their airway, requiring
intubation.
Question 23: Which pupillary finding suggests increased intracranial pressure? A.
Bilateral pinpoint pupils B. Unilateral dilated and fixed pupil C. Bilateral dilated and
reactive pupils D. Anisocoria with reactive pupils CORRECT ANSWER: B. Unilateral
dilated and fixed pupil Rationale: A unilateral dilated, fixed pupil indicates ipsilateral
cranial nerve III compression from herniation.
Question 24: What is Cushing's triad? A. Tachycardia, hypotension, tachypnea B.
Hypertension, bradycardia, irregular respirations C. Hypotension, bradycardia,
hypothermia D. Hypertension, tachycardia, hyperthermia CORRECT ANSWER: B.
, Hypertension, bradycardia, irregular respirations Rationale: Cushing's triad is a late
sign of increased intracranial pressure and impending herniation.
Question 25: Which adjunct to the primary survey evaluates for intraperitoneal
fluid? A. Chest radiograph B. Focused Assessment with Sonography for Trauma (FAST)
C. Pelvic radiograph D. Computed tomography (CT) CORRECT ANSWER: B. Focused
Assessment with Sonography for Trauma (FAST) Rationale: The FAST exam rapidly
identifies free fluid (blood) in the pericardium, peritoneum, and pleural spaces.
Question 26: What is the primary purpose of the extended FAST (eFAST)? A. Evaluate
fetal viability B. Assess for pneumothorax C. Measure bladder volume D. Evaluate aortic
integrity CORRECT ANSWER: B. Assess for pneumothorax Rationale: The eFAST
includes thoracic views to detect the absence of lung sliding, indicating pneumothorax.
Question 27: Which radiograph is routinely obtained during the primary survey
adjuncts? A. Cervical spine lateral view B. Chest radiograph C. Lumbar spine AP view D.
Skull radiograph CORRECT ANSWER: B. Chest radiograph Rationale: A portable chest
X-ray is a standard adjunct to identify life-threatening thoracic injuries.
Question 28: What is the primary goal of the exposure and environmental control
phase? A. Identify all injuries B. Prevent hypothermia C. Assess skin turgor D. Collect
forensic evidence CORRECT ANSWER: B. Prevent hypothermia Rationale: Preventing
hypothermia is critical, as it exacerbates coagulopathy and acidosis (lethal triad).
Question 29: Which intervention is most effective in preventing trauma-induced
hypothermia? A. Administering cold intravenous fluids B. Using forced-air warming
blankets C. Removing all clothing for assessment D. Applying ice packs to groin
CORRECT ANSWER: B. Using forced-air warming blankets Rationale: Active external
rewarming, like forced-air blankets, prevents heat loss and treats hypothermia.
Question 30: What is the lethal triad of trauma? A. Hypothermia, coagulopathy,
acidosis B. Hyperthermia, coagulopathy, alkalosis C. Hypothermia, thrombocytopenia,
acidosis D. Hypothermia, coagulopathy, alkalosis CORRECT ANSWER: A.
Hypothermia, coagulopathy, acidosis Rationale: These three conditions exacerbate
each other, leading to irreversible shock and death.
Question 31: Which patient population is at the highest risk for hypothermia? A.
Young adults B. Adolescents C. Geriatric patients D. Middle-aged adults CORRECT
ANSWER: C. Geriatric patients Rationale: Geriatric patients have decreased metabolic
rates and impaired thermoregulation.
Question 32: What is the primary indicator of adequate resuscitation in a trauma
patient? A. Heart rate less than 100 bpm B. Urine output of at least 0.5 mL/kg/hr C.
Systolic blood pressure greater than 110 mmHg D. Normal skin color CORRECT
ANSWER: B. Urine output of at least 0.5 mL/kg/hr Rationale: Urine output is a
sensitive indicator of renal perfusion and overall organ perfusion.
Certification Study Guide, Practice Exam Questions and Answers,
Comprehensive Review, Exam Prep Test Bank, Trauma Patient
Assessment, Emergency Nursing Interventions, Rapid Trauma
Evaluation, Injury Management Protocols, Critical Care Concepts,
and Detailed Rationales for Certification Readiness
Question 1: What is the primary goal of a trauma system? A. Decrease hospital
length of stay B. Ensure all trauma patients undergo surgery C. Deliver the right care to
the right patient at the right time D. Reduce prehospital transport times CORRECT
ANSWER: C. Deliver the right care to the right patient at the right time Rationale: The
core purpose of a trauma system is to ensure optimal resource allocation and timely
care.
Question 2: Which injury mechanism automatically qualifies a patient for highest-
level trauma triage? A. Fall from 10 feet B. Pedestrian struck at 15 mph C. Motor vehicle
crash with 5 mph damage D. Sports-related concussion CORRECT ANSWER: B.
Pedestrian struck at 15 mph Rationale: Pedestrian struck mechanisms involve high
energy transfer and automatically trigger highest-level triage.
Question 3: What is the first step in the primary survey? A. Breathing assessment B.
Circulation assessment C. Airway maintenance with C-spine restriction D. Disability
assessment CORRECT ANSWER: C. Airway maintenance with C-spine restriction
Rationale: Airway with cervical spine protection is always the first priority in the ABCDE
primary survey.
Question 4: Which intervention is most appropriate for a trauma patient with an
absent gag reflex? A. Nasopharyngeal airway B. Oropharyngeal airway C. Bag-valve-
mask ventilation D. Endotracheal intubation CORRECT ANSWER: B. Oropharyngeal
airway Rationale: An oropharyngeal airway is indicated for unconscious patients
lacking a gag reflex to prevent aspiration.
Question 5: What is the preferred method for opening the airway in a trauma
patient? A. Head tilt-chin lift B. Jaw-thrust maneuver C. Neck hyperextension D. Cricoid
pressure CORRECT ANSWER: B. Jaw-thrust maneuver Rationale: The jaw-thrust
maneuver opens the airway without moving the cervical spine.
Question 6: A patient has severe facial trauma and cannot be intubated. What is the
immediate next step? A. Insert a laryngeal mask airway B. Perform a surgical
cricothyroidotomy C. Administer high-flow oxygen via nonrebreather D. Perform a
tracheostomy CORRECT ANSWER: B. Perform a surgical cricothyroidotomy
Rationale: A surgical airway is indicated when a patient cannot be intubated and cannot
be ventilated.
Question 7: Which complication is most immediately life-threatening during the
breathing assessment? A. Simple pneumothorax B. Tension pneumothorax C. Rib
fracture D. Pulmonary contusion CORRECT ANSWER: B. Tension pneumothorax
,Rationale: Tension pneumothorax causes obstructive shock and requires immediate
needle decompression.
Question 8: Where is the preferred site for needle decompression in an adult? A.
2nd intercostal space, midclavicular line B. 5th intercostal space, anterior axillary line
C. 4th intercostal space, midaxillary line D. 2nd intercostal space, midaxillary line
CORRECT ANSWER: B. 5th intercostal space, anterior axillary line Rationale: TNCC
9th edition recommends the 5th intercostal space at the anterior axillary line for adults.
Question 9: What clinical sign differentiates a tension pneumothorax from a simple
pneumothorax? A. Absent breath sounds B. Tracheal deviation and hypotension C.
Tachypnea D. Pleuritic chest pain CORRECT ANSWER: B. Tracheal deviation and
hypotension Rationale: Tracheal deviation and hemodynamic instability indicate
tension physiology and obstructive shock.
Question 10: Which finding is characteristic of a flail chest? A. Tracheal deviation B.
Paradoxical chest wall movement C. Subcutaneous emphysema D. Hyperresonance to
percussion CORRECT ANSWER: B. Paradoxical chest wall movement Rationale: Flail
chest occurs when three or more adjacent ribs are fractured in two or more places,
causing paradoxical movement.
Question 11: What is the primary treatment for a flail chest? A. Needle
decompression B. Positive pressure ventilation and pain management C. Chest tube
insertion D. Intercostal nerve block CORRECT ANSWER: B. Positive pressure
ventilation and pain management Rationale: Positive pressure ventilation internally
splints the flail segment, while pain control improves tidal volume.
Question 12: A patient presents with muffled heart sounds, jugular venous
distention, and hypotension. What is the diagnosis? A. Tension pneumothorax B.
Cardiac tamponade C. Massive hemothorax D. Myocardial contusion CORRECT
ANSWER: B. Cardiac tamponade Rationale: These are Beck's triad, the classic signs of
cardiac tamponade.
Question 13: What is the most definitive treatment for cardiac tamponade? A.
Intravenous fluid bolus B. Pericardiocentesis or thoracotomy C. Chest tube insertion D.
Administration of vasopressors CORRECT ANSWER: B. Pericardiocentesis or
thoracotomy Rationale: Removing the pericardial blood via pericardiocentesis or
surgical thoracotomy is definitive.
Question 14: Which type of shock is most common in trauma patients? A.
Cardiogenic B. Hypovolemic C. Neurogenic D. Septic CORRECT ANSWER: B.
Hypovolemic Rationale: Hemorrhage leading to hypovolemic shock is the most
frequent cause of shock in trauma.
Question 15: What is the earliest clinical sign of hypovolemic shock? A.
Hypotension B. Tachycardia C. Bradycardia D. Altered mental status CORRECT
ANSWER: B. Tachycardia Rationale: Tachycardia is a compensatory mechanism and
often the first sign of volume loss.
,Question 16: In which class of hemorrhagic shock does a patient typically present
with a narrow pulse pressure and confusion? A. Class I B. Class II C. Class III D. Class
IV CORRECT ANSWER: C. Class III Rationale: Class III shock involves 31-40% blood
loss, causing significant tachycardia, narrowed pulse pressure, and confusion.
Question 17: Where should a pelvic binder be applied? A. Iliac crests B. Greater
trochanters C. Pubic symphysis D. Anterior superior iliac spines CORRECT ANSWER: B.
Greater trochanters Rationale: Placement at the greater trochanters effectively
reduces pelvic volume and stabilizes fractures.
Question 18: What is the primary purpose of applying a pelvic binder? A. Reduce
pain B. Control venous and cancellous bone bleeding C. Prevent deep vein thrombosis
D. Align the lower extremities CORRECT ANSWER: B. Control venous and cancellous
bone bleeding Rationale: Pelvic binders reduce pelvic volume, promoting tamponade
of venous and bone bleeding.
Question 19: Which intervention is most appropriate for controlling severe
extremity hemorrhage? A. Direct pressure and elevation B. Application of a tourniquet
C. Pressure dressing D. Hemostatic agent CORRECT ANSWER: B. Application of a
tourniquet Rationale: Tourniquets are the most effective intervention for life-
threatening extremity hemorrhage.
Question 20: What is the primary neurologic assessment tool used in the primary
survey? A. Mini-Mental State Examination B. Glasgow Coma Scale C. Montreal
Cognitive Assessment D. NIH Stroke Scale CORRECT ANSWER: B. Glasgow Coma
Scale Rationale: The GCS rapidly assesses eye, verbal, and motor responses to
determine neurologic status.
Question 21: A patient opens eyes to pain, makes incomprehensible sounds, and
exhibits abnormal flexion. What is the GCS? A. 6 B. 7 C. 8 D. 9 CORRECT ANSWER:
C. 8 Rationale: Eye opening to pain (2), incomprehensible sounds (2), abnormal flexion
(4) equals 8.
Question 22: A GCS score of 8 or less indicates the need for what intervention? A.
Nasotracheal intubation B. Definitive airway management C. Hyperventilation D.
Administration of mannitol CORRECT ANSWER: B. Definitive airway management
Rationale: A GCS of 8 or less means the patient cannot protect their airway, requiring
intubation.
Question 23: Which pupillary finding suggests increased intracranial pressure? A.
Bilateral pinpoint pupils B. Unilateral dilated and fixed pupil C. Bilateral dilated and
reactive pupils D. Anisocoria with reactive pupils CORRECT ANSWER: B. Unilateral
dilated and fixed pupil Rationale: A unilateral dilated, fixed pupil indicates ipsilateral
cranial nerve III compression from herniation.
Question 24: What is Cushing's triad? A. Tachycardia, hypotension, tachypnea B.
Hypertension, bradycardia, irregular respirations C. Hypotension, bradycardia,
hypothermia D. Hypertension, tachycardia, hyperthermia CORRECT ANSWER: B.
, Hypertension, bradycardia, irregular respirations Rationale: Cushing's triad is a late
sign of increased intracranial pressure and impending herniation.
Question 25: Which adjunct to the primary survey evaluates for intraperitoneal
fluid? A. Chest radiograph B. Focused Assessment with Sonography for Trauma (FAST)
C. Pelvic radiograph D. Computed tomography (CT) CORRECT ANSWER: B. Focused
Assessment with Sonography for Trauma (FAST) Rationale: The FAST exam rapidly
identifies free fluid (blood) in the pericardium, peritoneum, and pleural spaces.
Question 26: What is the primary purpose of the extended FAST (eFAST)? A. Evaluate
fetal viability B. Assess for pneumothorax C. Measure bladder volume D. Evaluate aortic
integrity CORRECT ANSWER: B. Assess for pneumothorax Rationale: The eFAST
includes thoracic views to detect the absence of lung sliding, indicating pneumothorax.
Question 27: Which radiograph is routinely obtained during the primary survey
adjuncts? A. Cervical spine lateral view B. Chest radiograph C. Lumbar spine AP view D.
Skull radiograph CORRECT ANSWER: B. Chest radiograph Rationale: A portable chest
X-ray is a standard adjunct to identify life-threatening thoracic injuries.
Question 28: What is the primary goal of the exposure and environmental control
phase? A. Identify all injuries B. Prevent hypothermia C. Assess skin turgor D. Collect
forensic evidence CORRECT ANSWER: B. Prevent hypothermia Rationale: Preventing
hypothermia is critical, as it exacerbates coagulopathy and acidosis (lethal triad).
Question 29: Which intervention is most effective in preventing trauma-induced
hypothermia? A. Administering cold intravenous fluids B. Using forced-air warming
blankets C. Removing all clothing for assessment D. Applying ice packs to groin
CORRECT ANSWER: B. Using forced-air warming blankets Rationale: Active external
rewarming, like forced-air blankets, prevents heat loss and treats hypothermia.
Question 30: What is the lethal triad of trauma? A. Hypothermia, coagulopathy,
acidosis B. Hyperthermia, coagulopathy, alkalosis C. Hypothermia, thrombocytopenia,
acidosis D. Hypothermia, coagulopathy, alkalosis CORRECT ANSWER: A.
Hypothermia, coagulopathy, acidosis Rationale: These three conditions exacerbate
each other, leading to irreversible shock and death.
Question 31: Which patient population is at the highest risk for hypothermia? A.
Young adults B. Adolescents C. Geriatric patients D. Middle-aged adults CORRECT
ANSWER: C. Geriatric patients Rationale: Geriatric patients have decreased metabolic
rates and impaired thermoregulation.
Question 32: What is the primary indicator of adequate resuscitation in a trauma
patient? A. Heart rate less than 100 bpm B. Urine output of at least 0.5 mL/kg/hr C.
Systolic blood pressure greater than 110 mmHg D. Normal skin color CORRECT
ANSWER: B. Urine output of at least 0.5 mL/kg/hr Rationale: Urine output is a
sensitive indicator of renal perfusion and overall organ perfusion.
