TNCC Trauma Nursing Core Course Exam — Questions and Answers

Question 1: Which intervention should PRECEDE endotracheal intubation in the trauma patient to maximize oxygen reserve during the apneic intubation period?

Suctioning of the oropharynx
Pre-oxygenation with 100% O2 for 3-5 minutes (Correct answer)
Placement of a nasopharyngeal airway
Administration of a paralytic agent

Correct answer: Pre-oxygenation with 100% O2 for 3-5 minutes

Pre-oxygenation with 100% oxygen for 3-5 minutes denitrogenates the lungs, extending the safe apneic period during intubation.

Question 2: What is the primary purpose of professional certification in Musculoskeletal Trauma?

To validate competency and knowledge in the field (Correct answer)
To increase salary automatically
To replace practical experience
To meet legal requirements only

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Musculoskeletal Trauma.

Question 3: A 12-year-old with a seatbelt sign across the abdomen after a high-speed MVC is at elevated risk for which specific spinal injury pattern?

Thoracic compression fracture
Lumbar Chance fracture (Correct answer)
C1-C2 subluxation
Sacral stress fracture

Correct answer: Lumbar Chance fracture

A seatbelt sign over the abdomen in a restrained child is associated with Chance fractures (flexion-distraction injuries) of the lumbar spine.

Question 4: During the secondary survey, which assessment technique is used to evaluate pelvic ring stability in a trauma patient?

Performing a log-roll maneuver
Assessing for leg length discrepancy
Applying lateral-to-medial compression on the iliac crests
Gentle anterior-posterior compression of the iliac crests (Correct answer)

Correct answer: Gentle anterior-posterior compression of the iliac crests

Gentle anteroposterior pelvic compression (spring test) assesses pelvic ring stability; however, this should only be performed once to avoid dislodging clots.

Question 5: Which assessment finding most reliably distinguishes tension pneumothorax from simple pneumothorax?

Tracheal deviation and hemodynamic instability (Correct answer)
Presence or absence of subcutaneous emphysema
Severity of respiratory distress and pain level
Degree of hypoxia measured by pulse oximetry

Correct answer: Tracheal deviation and hemodynamic instability

Tracheal deviation away from the affected side and hemodynamic instability (hypotension, shock) indicate mediastinal shift and obstructive shock, which are hallmarks of tension pneumothorax.

Question 6: What is the primary objective of the TNCC program?

To prepare nurses for administrative roles
To focus exclusively on pediatric trauma care
To train nurses in managing trauma patients effectively (Correct answer)
To provide general nursing education

Correct answer: To train nurses in managing trauma patients effectively

The Trauma Nursing Core Course (TNCC) is specifically designed to provide emergency nurses with the foundational knowledge and psychomotor skills required for the rapid and systematic assessment and intervention of trauma patients. Its primary objective is to enhance their ability to provide expert care during the critical initial hours of trauma, ultimately improving patient outcomes.

Question 7: When calculating TBSA in an adult using the Rule of Nines, which value is assigned to the entire head and neck?

4.5%
9% (Correct answer)
1%
18%

Correct answer: 9%

In adults, the head and neck together account for 9% of TBSA using the Rule of Nines.

Question 8: Which organization offers the TNCC certification?

National Trauma Association (NTA)
American Heart Association (AHA)
Emergency Nurses Association (ENA) (Correct answer)
American Nurses Credentialing Center (ANCC)

Correct answer: Emergency Nurses Association (ENA)

The Emergency Nurses Association (ENA) is the sole developer and provider of the Trauma Nursing Core Course (TNCC). ENA is a professional organization dedicated to advancing emergency nursing practice and patient care, and TNCC is one of its flagship educational programs designed to standardize and improve trauma care provided by nurses.

Question 9: A patient with Class II hemorrhagic shock (750–1500 mL blood loss) would MOST likely demonstrate:

Normal BP and HR below 100 bpm
Tachycardia 100–120 bpm with normal or slightly decreased BP (Correct answer)
Hypotension with HR above 140 bpm
Bradycardia with widened pulse pressure

Correct answer: Tachycardia 100–120 bpm with normal or slightly decreased BP

Class II shock presents with tachycardia (100–120 bpm), narrowed pulse pressure, and potentially normal systolic BP due to compensatory mechanisms.

Question 10: An unrestrained driver strikes the steering column at high speed and arrives with HR 118, BP 100/70, muffled heart tones, and no breath sounds on the left. The PRIORITY intervention is:

Needle decompression of the left chest (Correct answer)
Pericardiocentesis for cardiac tamponade
Massive transfusion protocol activation
12-lead ECG and cardiology consult

Correct answer: Needle decompression of the left chest

Absent breath sounds on one side after thoracic trauma indicate tension pneumothorax, which requires immediate needle decompression before other interventions.

Question 11: Which temporary intervention is performed for hemodynamically unstable cardiac tamponade when immediate surgery is unavailable?

Emergent external cardiac pacing
Pericardiocentesis to aspirate pericardial blood (Correct answer)
Needle decompression at the midclavicular line
Chest tube insertion at the fourth intercostal space

Correct answer: Pericardiocentesis to aspirate pericardial blood

Pericardiocentesis removes blood from the pericardial sac to relieve tamponade physiology and provides temporary hemodynamic improvement until definitive surgical repair.

Question 12: Which type of learning format does TNCC use to ensure nurses can apply skills under realistic conditions?

Shadow shifts with experienced trauma surgeons
Online lecture series only with no hands-on component
Self-study textbook examination without supervision
Blended learning combining didactic content with psychomotor skills stations (Correct answer)

Correct answer: Blended learning combining didactic content with psychomotor skills stations

TNCC combines online didactic modules with in-person psychomotor skills stations to reinforce practical application of trauma nursing competencies.

Question 13: When transferring a major burn patient, which criterion from the American Burn Association meets criteria for transfer to a burn center?

Full-thickness burns less than 1% TBSA without complications
Superficial burns greater than 5% TBSA in an adult
Any burn requiring a dressing change
Partial-thickness burns greater than 10% TBSA (Correct answer)

Correct answer: Partial-thickness burns greater than 10% TBSA

The ABA recommends burn center transfer for partial-thickness burns >10% TBSA, among other criteria including full-thickness burns and special area involvement.

Question 14: A TNCC-certified nurse notices that a trauma patient's mechanism of injury suggests internal bleeding not yet reflected in vital signs. This reflects which TNCC benefit?

Authority to order CT scans independently
Advanced pharmacological prescribing authority
Training in mechanism-of-injury analysis to anticipate injuries before they become clinically obvious (Correct answer)
Ability to bypass triage and send patients directly to the OR

Correct answer: Training in mechanism-of-injury analysis to anticipate injuries before they become clinically obvious

TNCC trains nurses to use mechanism of injury data to predict potential injury patterns and intervene proactively before hemodynamic decompensation occurs.

Question 15: Obstructive shock from tension pneumothorax is BEST distinguished from other shock types by the presence of:

Absent breath sounds and tracheal deviation (Correct answer)
Diaphoresis and altered mental status
Tachycardia and hypotension
Distended neck veins and muffled heart sounds

Correct answer: Absent breath sounds and tracheal deviation

Absent or diminished breath sounds with tracheal deviation away from the affected side are hallmark signs of tension pneumothorax causing obstructive shock.

Question 16: Which statement best describes the relationship between TNCC and ATLS?

TNCC is the nursing-focused complement to the physician-focused ATLS program (Correct answer)
TNCC replaces ATLS for nurses who work in trauma centers
TNCC is a prerequisite before taking ATLS
ATLS and TNCC have identical curricula designed to be interchangeable

Correct answer: TNCC is the nursing-focused complement to the physician-focused ATLS program

TNCC and ATLS are complementary courses — ATLS targets physicians while TNCC addresses the nursing role in trauma care.

Question 17: If a nurse's TNCC provider card is lost or damaged, what is the correct course of action?

The credential cannot be replaced and must be re-earned
Ask the course director to write a verification letter instead
Contact the ENA to request a replacement card (Correct answer)
Retake the full TNCC course to obtain a new card

Correct answer: Contact the ENA to request a replacement card

The ENA can issue a replacement TNCC provider card when the original is lost or damaged.

Question 18: The primary purpose of applying a cervical collar in the trauma patient prior to airway management is to:

Prevent venous air embolism during intubation
Facilitate cricothyrotomy access
Limit cervical spine movement and reduce secondary injury risk (Correct answer)
Improve glottic visualization during laryngoscopy

Correct answer: Limit cervical spine movement and reduce secondary injury risk

A cervical collar limits cervical spine movement, reducing the risk of secondary spinal cord injury during airway manipulation in the setting of suspected c-spine trauma.

Question 19: Which element is NOT typically included in a standard TNCC skills station evaluation?

Independent interpretation of angiography results (Correct answer)
Airway assessment and management
Disability and neurological assessment
Hemorrhage control

Correct answer: Independent interpretation of angiography results

Independent interpretation of angiography is beyond the scope of TNCC nursing skills stations.

Question 20: Beck's triad of hypotension, muffled heart sounds, and distended neck veins is the classic presentation of which condition?

Cardiac tamponade (Correct answer)
Massive hemothorax
Traumatic aortic injury
Tension pneumothorax

Correct answer: Cardiac tamponade

Beck's triad describes cardiac tamponade, in which fluid accumulation in the pericardial sac restricts cardiac filling and reduces cardiac output.

Question 21: During the secondary assessment of a pediatric trauma patient, the nurse notes bruising in a pattern consistent with a hand or belt. The nurse's priority action is:

Document findings and notify the attending physician only
Confront the family member present at bedside
Complete the assessment, document objectively, and initiate mandatory reporting protocol (Correct answer)
Defer documentation until the family leaves the room

Correct answer: Complete the assessment, document objectively, and initiate mandatory reporting protocol

Objective documentation of findings and immediate activation of the mandatory reporting protocol is the nurse's legal and ethical obligation when non-accidental trauma is suspected.

Question 22: Which laboratory value is the BEST early marker of tissue hypoperfusion in shock?

Serum lactate (Correct answer)
Serum sodium
BUN/creatinine ratio
White blood cell count

Correct answer: Serum lactate

Elevated serum lactate reflects anaerobic metabolism from tissue hypoperfusion and is an early, sensitive marker of shock severity.

Question 23: Spinal shock is characterized by which clinical findings immediately after a complete spinal cord injury?

Partial motor and sensory loss with intact reflexes
Spastic paralysis, hyperreflexia, and Babinski sign below the injury level
Flaccid paralysis, absent reflexes, and loss of autonomic function below the injury level (Correct answer)
Ascending paralysis with preserved autonomic function

Correct answer: Flaccid paralysis, absent reflexes, and loss of autonomic function below the injury level

Spinal shock causes immediate flaccid paralysis with areflexia below the injury level due to abrupt loss of supraspinal input; spasticity develops later.

Question 24: A trauma patient develops sudden hypotension 2 hours after a seat belt injury. Initial FAST was negative. What should be the priority diagnostic consideration?

Tension pneumothorax
Neurogenic shock from spinal injury
Cardiac tamponade
Delayed hollow viscus injury with peritonitis (Correct answer)

Correct answer: Delayed hollow viscus injury with peritonitis

A negative initial FAST does not exclude bowel injury; delayed hollow viscus perforation can present with peritonitis and hemodynamic deterioration hours after injury.

Question 25: What does the 'lethal triad' in trauma refer to?

Tachycardia, hypotension, and altered mental status
Hemorrhage, infection, and organ failure
Hypoxia, hypovolemia, and hypothermia
Hypothermia, acidosis, and coagulopathy (Correct answer)

Correct answer: Hypothermia, acidosis, and coagulopathy

The lethal triad of hypothermia, metabolic acidosis, and coagulopathy creates a self-perpetuating cycle that dramatically increases trauma mortality.

Question 26: A TNCC instructor candidate must first demonstrate which of the following?

A minimum of 10 years in emergency nursing
Board certification in emergency nursing (CEN)
Current TNCC provider status (Correct answer)
Completion of a trauma surgery rotation

Correct answer: Current TNCC provider status

A current TNCC provider credential is a prerequisite for entering the TNCC instructor training pathway.

Question 27: A trauma patient's SpO2 reads 99% via pulse oximetry after a house fire. However, you suspect the reading may be falsely reassuring because:

The patient's skin tone may interfere with the probe
The device has a 2-minute lag that underestimates true SpO2
Pulse oximetry overestimates SpO2 in hypotensive patients
Pulse oximetry cannot distinguish oxyhemoglobin from carboxyhemoglobin (Correct answer)

Correct answer: Pulse oximetry cannot distinguish oxyhemoglobin from carboxyhemoglobin

Standard pulse oximetry reads carboxyhemoglobin as oxyhemoglobin, producing falsely normal or high SpO2 readings in carbon monoxide poisoning.

Question 28: During reassessment, a patient with a tibial fracture reports worsening pain that is unresponsive to opioid analgesia and pain with passive stretch of the toes. What is the priority intervention?

Apply ice to reduce swelling
Elevate the limb above heart level
Administer a higher dose of analgesic
Notify the physician immediately for compartment pressure measurement (Correct answer)

Correct answer: Notify the physician immediately for compartment pressure measurement

Pain unrelieved by opioids and pain with passive stretch are hallmark signs of acute compartment syndrome requiring urgent pressure measurement and possible fasciotomy.

Question 29: How does documentation support quality in Musculoskeletal Trauma?

It creates records, ensures consistency, and enables improvement (Correct answer)
It is only for billing
It only serves administrative purposes
Documentation is unnecessary overhead

Correct answer: It creates records, ensures consistency, and enables improvement

Proper documentation creates accountability, ensures consistency, supports quality improvement, and provides legal protection.

Question 30: Which population-specific consideration is explicitly addressed in the TNCC curriculum?

Neonatal resuscitation protocols
Pediatric immunization schedules
Obstetric trauma and the pregnant trauma patient (Correct answer)
Geriatric cardiac monitoring guidelines

Correct answer: Obstetric trauma and the pregnant trauma patient

TNCC specifically addresses obstetric trauma because pregnancy alters anatomy and physiology in ways that affect trauma assessment and management.

Question 31: Which intervention is the priority when a trauma patient develops worsening respiratory distress after needle decompression of a tension pneumothorax?

Obtain a stat portable chest X-ray first
Immediately perform a tube thoracostomy (Correct answer)
Increase the oxygen flow rate
Repeat the needle decompression at a new site

Correct answer: Immediately perform a tube thoracostomy

Needle decompression is temporizing; definitive treatment is chest tube insertion, which must follow if the patient does not improve or deteriorates.

Question 32: Which neurological finding in a trauma patient warrants immediate neurosurgical consultation for possible epidural hematoma?

Brief loss of consciousness followed by a lucid interval then rapid deterioration (Correct answer)
Progressive confusion with no loss of consciousness
Gradual onset headache over 24 hours with vomiting
Persistent anterograde amnesia with stable vitals

Correct answer: Brief loss of consciousness followed by a lucid interval then rapid deterioration

The classic lucid interval followed by rapid neurological deterioration is the hallmark presentation of an epidural hematoma from middle meningeal artery rupture.

Question 33: Following endotracheal intubation, the FIRST action to confirm tube placement should be:

Pulse oximetry improvement
Auscultation of bilateral breath sounds
Chest X-ray
Waveform capnography (Correct answer)

Correct answer: Waveform capnography

Waveform capnography is the most reliable immediate method to confirm ETT placement and should be the first confirmatory step used.

Question 34: How should you manage time during a timed test?

Only work on hard questions
Spend equal time on every question
Rush through the entire test
Divide total time by questions and pace yourself, spending less on easy ones (Correct answer)

Correct answer: Divide total time by questions and pace yourself, spending less on easy ones

Calculate time per question, spend less on easy questions to bank time for harder ones, and check your pace periodically.

Question 35: Which cervical spine injury pattern is most associated with a diving accident mechanism?

Axial compression (burst) fracture at C4-C5 (Correct answer)
Lateral bending injury at C3-C4
Hyperextension injury at C6-C7
Flexion-rotation injury at C1-C2

Correct answer: Axial compression (burst) fracture at C4-C5

Diving into shallow water causes axial loading and burst fractures most commonly at C4-C5 due to the alignment of the cervical spine during impact.

Question 36: A spinal cord injury patient has diaphragmatic breathing but absent intercostal muscle function. The injury level is most likely:

C4 (Correct answer)
T6
C2
T1

Correct answer: C4

The phrenic nerve (C3-C5) controls the diaphragm, so C4 injury preserves diaphragmatic breathing while T1 intercostal innervation is lost.

Question 37: For a patient with alkali (lye) chemical burns, irrigation with water should be performed for at least:

10 minutes
30 minutes or longer (Correct answer)
20 minutes
5 minutes

Correct answer: 30 minutes or longer

Alkali burns require prolonged irrigation (30 minutes or more) because alkalis cause liquefactive necrosis and penetrate tissue more deeply than acids.

Question 38: The ASIA Impairment Scale grade 'B' indicates which level of spinal cord injury?

Normal: motor and sensory function intact
Complete injury: no motor or sensory function below injury level
Incomplete: motor function preserved with more than half of key muscles graded < 3/5
Incomplete: sensory but no motor function preserved below the neurological level (Correct answer)

Correct answer: Incomplete: sensory but no motor function preserved below the neurological level

ASIA grade B is sensory incomplete: sensory function is preserved below the neurological level but no motor function is present below that level.

Question 39: The Revised Trauma Score (RTS) incorporates which three physiological parameters?

Heart rate, GCS, and oxygen saturation
Respiratory rate, pulse oximetry, and GCS
GCS, systolic BP, and respiratory rate (Correct answer)
Systolic BP, heart rate, and temperature

Correct answer: GCS, systolic BP, and respiratory rate

The RTS uses Glasgow Coma Scale, systolic blood pressure, and respiratory rate to quantify injury severity for triage and outcomes.

Question 40: What is the primary concern with administering high-volume crystalloid resuscitation in hemorrhagic shock?

Dilutional coagulopathy and worsening of the lethal triad (Correct answer)
Rapid correction of coagulopathy
Immediate resolution of acidosis
Hypernatremia from saline infusion

Correct answer: Dilutional coagulopathy and worsening of the lethal triad

Large-volume crystalloid worsens the lethal triad (hypothermia, acidosis, coagulopathy) by diluting clotting factors and promoting hypothermia.

Question 41: Which finding would MOST strongly suggest cardiac tamponade as the cause of shock in a penetrating chest trauma patient?

Diffuse ST elevation on ECG
Paradoxical pulse (pulsus paradoxus) greater than 10 mmHg (Correct answer)
Subcutaneous emphysema over the chest wall
Absent breath sounds with tracheal deviation

Correct answer: Paradoxical pulse (pulsus paradoxus) greater than 10 mmHg

Pulsus paradoxus greater than 10 mmHg — exaggerated drop in systolic BP during inspiration — is a hallmark of cardiac tamponade due to pericardial compression.

Question 42: During the compensatory phase of shock, the body attempts to maintain perfusion by:

Releasing vasodilatory mediators
Activating the sympathetic nervous system (Correct answer)
Decreasing systemic vascular resistance
Increasing urine output

Correct answer: Activating the sympathetic nervous system

Sympathetic nervous system activation causes vasoconstriction, increased heart rate, and redistributed blood flow to maintain perfusion to vital organs.

Question 43: The Trauma Nursing Process Model uses the mnemonic 'I PREPARE' for history gathering. What does the 'I' stand for?

Injuries sustained (Correct answer)
Intake and output
Immunization status
Illness history

Correct answer: Injuries sustained

In the I PREPARE mnemonic, 'I' stands for Injuries sustained — identifying the nature of wounds acquired in the traumatic event.

Question 44: A patient with a suspected pelvic fracture and hemodynamic instability despite initial resuscitation should receive which definitive hemorrhage control intervention?

External fixation of the pelvis
Angiographic embolization
Pelvic binder application and emergent angioembolization (Correct answer)
Exploratory laparotomy

Correct answer: Pelvic binder application and emergent angioembolization

Application of a pelvic binder provides immediate tamponade of pelvic bleeding, while angioembolization is the definitive intervention for arterial hemorrhage in hemodynamically unstable pelvic fractures.

Question 45: The primary goal of permissive hypotension in hemorrhagic shock management is to:

Maintain cerebral perfusion pressure above 70 mmHg
Prevent dilutional coagulopathy and avoid clot disruption (Correct answer)
Maximize urine output
Reduce the risk of pulmonary edema

Correct answer: Prevent dilutional coagulopathy and avoid clot disruption

Allowing a lower-than-normal BP prevents dislodging forming clots and diluting clotting factors, reducing ongoing hemorrhage.

Question 46: When applying traction splinting for a femur fracture, which condition is an absolute contraindication?

Vascular compromise distal to fracture
Coexisting hip or knee injury (Correct answer)
Suspected pelvis fracture
Open femur fracture with wound

Correct answer: Coexisting hip or knee injury

Hip or knee injuries are absolute contraindications to traction splinting because applying traction can displace those injuries and cause additional damage.

Question 47: What is the process of elimination in multiple-choice testing?

Eliminating questions you don't know
Skipping every other question
Removing your first answer
Ruling out obviously incorrect answers to improve odds (Correct answer)

Correct answer: Ruling out obviously incorrect answers to improve odds

Process of elimination involves identifying and removing clearly wrong answers, increasing the probability of selecting the correct answer from remaining options.

Question 48: What is the primary purpose of professional certification in Shock Recognition?

To replace practical experience
To validate competency and knowledge in the field (Correct answer)
To meet legal requirements only
To increase salary automatically

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Shock Recognition.

Question 49: What is the primary purpose of professional certification in Airway Management?

To validate competency and knowledge in the field (Correct answer)
To increase salary automatically
To meet legal requirements only
To replace practical experience

Correct answer: To validate competency and knowledge in the field

Certification validates that a professional has met established standards of knowledge and competency in Airway Management.

Question 50: What is the primary respiratory intervention for a patient with flail chest causing significant respiratory distress?

Immediate surgical fixation of all fractured ribs
Positive pressure ventilation with supplemental oxygen (Correct answer)
Needle decompression of the affected side
Application of a sandbag to stabilize the flail segment

Correct answer: Positive pressure ventilation with supplemental oxygen

Positive pressure ventilation provides internal pneumatic stabilization of the flail segment while supporting oxygenation and ventilation in the distressed patient.

TNCC Trauma Nursing Core Course Exam

The TNCC written exam, administered by the Emergency Nurses Association (ENA), is a 50-question closed-book multiple-choice test with a 2-hour time limit and a passing score of 80% (40/50). It covers the trauma nursing process including primary and secondary survey, airway management, shock recognition, head and neurological trauma, thoracic and abdominal trauma, musculoskeletal injuries, burn management, pediatric and special population trauma, and professional issues in trauma nursing. Candidates must also pass a hands-on Trauma Nursing Process psychomotor skills station.

Questions

120 min

Time Limit

80%

To Pass

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