TNCC Trauma Nursing Core Course Exam — Questions and Answers

Question 1: When performing the AVPU scale, a patient who opens eyes and groans when you call their name is classified as:

A - Alert
P - Responds to Pain
U - Unresponsive
V - Responds to Voice (Correct answer)

Correct answer: V - Responds to Voice

The AVPU scale classifies V as any response—eye opening, vocalization, or movement—elicited by verbal stimulation.

Question 2: Which laboratory finding is most specific for rhabdomyolysis in an electrical burn patient requiring increased urine output targets?

Elevated serum troponin
Myoglobinuria (dark, tea-colored urine with positive dipstick for blood but no RBCs) (Correct answer)
Leukocytosis greater than 15,000
Elevated serum creatinine

Correct answer: Myoglobinuria (dark, tea-colored urine with positive dipstick for blood but no RBCs)

Myoglobinuria causes dark urine that tests positive for blood on dipstick without microscopic RBCs, indicating muscle breakdown requiring urine output of 1–1.5 mL/kg/hr.

Question 3: What is the main purpose of trauma scenario simulations in TNCC?

To improve documentation skills for trauma cases
To pass the certification exam without studying
To observe how trauma cases are handled in hospitals
To gain real-world experience in a controlled environment (Correct answer)

Correct answer: To gain real-world experience in a controlled environment

Trauma scenario simulations in TNCC are designed to provide nurses with hands-on practice in managing critical trauma situations. This controlled environment allows them to apply theoretical knowledge, develop critical thinking skills, and refine their decision-making processes without the risks associated with actual patient care. It bridges the gap between classroom learning and real-world clinical application, preparing them for high-stress scenarios.

Question 4: The TNCC primary survey identifies shock by assessing circulation. Which finding during circulation assessment MOST directly indicates shock?

Decreased breath sounds bilaterally
GCS score of 12
Peripheral pulses that are weak and thready (Correct answer)
Pupillary asymmetry

Correct answer: Peripheral pulses that are weak and thready

Weak, thready peripheral pulses reflect decreased cardiac output and increased systemic vascular resistance, which are hallmarks of the shock state.

Question 5: Using the Parkland formula, how much lactated Ringer's should be given in the first 8 hours to a 70 kg patient with 40% TBSA burns?

2,800 mL
5,600 mL (Correct answer)
11,200 mL
4,480 mL

Correct answer: 5,600 mL

Parkland formula: 4 mL × kg × %TBSA = 4 × 70 × 40 = 11,200 mL total, with half (5,600 mL) given in the first 8 hours.

Question 6: A patient with 25% TBSA partial-thickness burns develops decreased breath sounds on the right with tracheal deviation to the left after needle decompression for suspected tension pneumothorax from a blast injury. The next step is:

Insert a chest tube (tube thoracostomy) on the right (Correct answer)
Obtain a portable chest X-ray before further intervention
Repeat needle decompression on the left side
Increase positive pressure ventilation settings

Correct answer: Insert a chest tube (tube thoracostomy) on the right

Persistent findings after needle decompression indicate failure of needle relief and require definitive chest tube placement for effective pneumothorax management.

Question 7: Which supraglottic airway device is considered a RESCUE device but NOT a definitive airway in the TNCC framework?

Cuffed endotracheal tube
Surgical cricothyrotomy tube
King LT or LMA (Correct answer)
Nasotracheal tube with cuff

Correct answer: King LT or LMA

Supraglottic airways like the King LT or LMA provide temporary ventilation but do not protect against aspiration and are not considered definitive airways.

Question 8: Which vital sign abnormality in a trauma patient most immediately suggests the need to address the 'C' (circulation) component of the primary survey?

Respiratory rate of 18 breaths/min
Temperature of 36.5°C (97.7°F)
SpO2 of 96% on room air
Blood pressure of 70/40 mmHg with tachycardia (Correct answer)

Correct answer: Blood pressure of 70/40 mmHg with tachycardia

Hypotension combined with tachycardia is the classic presentation of hemorrhagic shock, requiring immediate circulatory intervention.

Question 9: Which assessment finding best differentiates neurogenic shock from hypovolemic shock in a spinal cord injury patient?

Tachycardia with cool, clammy skin in neurogenic shock
Decreased urine output in hypovolemic shock only
Bradycardia with warm, dry skin in neurogenic shock (Correct answer)
MAP less than 65 mmHg in both conditions

Correct answer: Bradycardia with warm, dry skin in neurogenic shock

Neurogenic shock causes paradoxical bradycardia with vasodilation (warm, dry skin) due to loss of sympathetic tone, unlike the tachycardia and vasoconstriction of hypovolemic shock.

Question 10: When should you change an answer on a test?

Change every answer you doubt
Never change answers
Always change your first answer
Only when you have a clear reason the new answer is better (Correct answer)

Correct answer: Only when you have a clear reason the new answer is better

Research shows changing answers is beneficial only when you have a specific reason, such as recalling new information or catching a misread question.

Question 11: Beck's triad of hypotension, muffled heart sounds, and distended neck veins is the classic presentation of which condition?

Massive hemothorax
Traumatic aortic injury
Cardiac tamponade (Correct answer)
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 12: When performing a log-roll during the secondary survey, the trauma nurse's primary responsibility is to:

Palpate the lumbar spinous processes for tenderness
Inspect the posterior thorax for wounds
Remove debris and foreign objects from beneath the patient
Maintain in-line cervical spine stabilization (Correct answer)

Correct answer: Maintain in-line cervical spine stabilization

The trauma nurse at the head maintains manual in-line stabilization throughout the log-roll to prevent cervical spine movement.

Question 13: Which study approach is most effective for Musculoskeletal Trauma material?

Passive re-reading of notes
Active recall with practice questions (Correct answer)
Studying for very long sessions without breaks
Highlighting all text

Correct answer: Active recall with practice questions

Active recall through practice questions is the most effective study method, as it strengthens memory retrieval pathways.

Question 14: 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 15: Which finding on chest X-ray after intubation indicates right mainstem bronchus intubation?

Left lung atelectasis with right lung hyperexpansion (Correct answer)
ETT tip at the level of the clavicles
Bilateral opacification of lung fields
Gastric bubble visible under the diaphragm

Correct answer: Left lung atelectasis with right lung hyperexpansion

Right mainstem intubation selectively ventilates the right lung, causing left lung atelectasis and relative right lung hyperinflation on chest X-ray.

Question 16: A patient with significant burns to both hands should have dressings applied in which configuration to preserve function?

Individual digit wrapping with the hand in a position of function (Correct answer)
Open exposure technique without dressings to monitor perfusion
Pressure dressings with fingers adducted to minimize edema
Circumferential wrapping of the entire hand as a unit

Correct answer: Individual digit wrapping with the hand in a position of function

Each digit is dressed individually and the hand is positioned in the intrinsic-plus (position of function) to prevent contracture formation.

Question 17: A 10-year-old with a GCS of 13 after blunt head trauma becomes increasingly agitated with a rising blood pressure and falling heart rate. This Cushing's triad response indicates:

Improving cerebral perfusion as swelling resolves
Neurogenic shock from cervical cord injury
Anxiety response to the trauma environment
Impending cerebral herniation from raised intracranial pressure (Correct answer)

Correct answer: Impending cerebral herniation from raised intracranial pressure

Cushing's triad (hypertension, bradycardia, irregular respirations) is a late, ominous sign of severely elevated ICP and impending brainstem herniation.

Question 18: Which mechanism of injury is most commonly associated with a flail chest?

Crush injury causing sternal fracture
Penetrating stab wound to the chest
High-velocity blunt force causing three or more consecutive rib fractures in two or more places (Correct answer)
Deceleration injury causing rib avulsion

Correct answer: High-velocity blunt force causing three or more consecutive rib fractures in two or more places

Flail chest results from at least three consecutive ribs fractured in two or more places, creating a free-floating segment that moves paradoxically with respiration.

Question 19: Which cervical spine injury pattern is most associated with a diving accident mechanism?

Lateral bending injury at C3-C4
Axial compression (burst) fracture at C4-C5 (Correct answer)
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 20: A patient with a posterior hip dislocation will typically present with the affected extremity in which position?

Extended, adducted, and internally rotated
Extended, abducted, and externally rotated
Flexed, adducted, and internally rotated (Correct answer)
Flexed, abducted, and externally rotated

Correct answer: Flexed, adducted, and internally rotated

Posterior hip dislocation (90% of dislocations) presents with the hip flexed, adducted, and internally rotated due to posterior displacement of the femoral head.

Question 21: Which temporary intervention is performed for hemodynamically unstable cardiac tamponade when immediate surgery is unavailable?

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

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 22: Which lab finding is the earliest indicator of significant intra-abdominal hemorrhage in a hemodynamically stable patient?

Elevated serum creatinine
Elevated alkaline phosphatase
Elevated serum lactate (Correct answer)
Decreased serum albumin

Correct answer: Elevated serum lactate

Elevated serum lactate reflects anaerobic metabolism from inadequate tissue perfusion and is an early marker of occult hemorrhagic shock before hemodynamic instability becomes apparent.

Question 23: Which sign during bag-valve-mask (BVM) ventilation suggests significant gastric insufflation?

Visible epigastric distension and regurgitation risk (Correct answer)
Increasing peak airway pressure
Bilateral symmetric chest rise
Decreased SpO2 despite ventilation

Correct answer: Visible epigastric distension and regurgitation risk

Epigastric distension during BVM ventilation indicates air is entering the stomach, significantly increasing aspiration risk.

Question 24: 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
Repeat the needle decompression at a new site
Increase the oxygen flow rate
Immediately perform a tube thoracostomy (Correct answer)

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 25: During the reevaluation phase of the initial assessment, the trauma nurse notes a declining GCS from 13 to 9 over 20 minutes. The priority action is:

Repeat the primary survey and prepare for potential airway intervention (Correct answer)
Document and notify the physician at the end of the assessment
Administer sedation to reduce agitation
Obtain a stat CT scan before reassessing the airway

Correct answer: Repeat the primary survey and prepare for potential airway intervention

A declining GCS indicates neurological deterioration; the nurse must repeat the primary survey and anticipate definitive airway management.

Question 26: Which finding would help differentiate cardiogenic shock from hemorrhagic shock in a trauma patient?

Decreased level of consciousness
Pale, cool, diaphoretic skin
Hypotension and tachycardia
Elevated jugular venous distension (JVD) (Correct answer)

Correct answer: Elevated jugular venous distension (JVD)

Elevated JVD indicates elevated central venous pressure consistent with cardiogenic or obstructive shock, not volume-depleted hemorrhagic shock.

Question 27: When assessing a trauma patient's pupils during the 'D' (Disability) component, which finding is most concerning for herniation syndrome?

Anisocoria less than 1mm
Unilateral fixed and dilated pupil (Correct answer)
Bilateral pinpoint pupils
Bilateral sluggish reaction to light

Correct answer: Unilateral fixed and dilated pupil

A unilateral fixed and dilated pupil indicates uncal herniation compressing cranial nerve III — a neurological emergency.

Question 28: A trauma patient cannot state the current month, does not know where they are, but responds correctly to their name. Orientation is best described as:

Oriented x2 (person and place)
Oriented x1 (person only) (Correct answer)
Disoriented to person, place, and time
Oriented x4

Correct answer: Oriented x1 (person only)

Orientation is assessed as person, place, time, and event; knowing only one's name represents orientation to person only (x1).

Question 29: What is the primary pathophysiologic concern with pulmonary contusion?

Tracheal obstruction from blood clots
Pneumothorax from alveolar rupture
Hemorrhage into lung parenchyma impairing gas exchange (Correct answer)
Mediastinal shift from fluid accumulation

Correct answer: Hemorrhage into lung parenchyma impairing gas exchange

Pulmonary contusion causes hemorrhage and edema within lung parenchyma, reducing alveolar function and causing hypoxia that often worsens over the first 24-48 hours.

Question 30: Spinal shock is characterized by which clinical findings immediately after a complete spinal cord injury?

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

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 31: The 'D' in the ABCDE primary survey specifically refers to:

Disability: neurological status (Correct answer)
Drainage from injuries
Drugs and allergies
Dressings and wound care

Correct answer: Disability: neurological status

Disability in the primary survey refers to a rapid neurological assessment including GCS, pupils, and gross motor function.

Question 32: The Cushing's triad is a late sign of increased ICP. Which combination correctly identifies all three components?

Hypertension, bradycardia, irregular respirations (Correct answer)
Hypotension, bradycardia, Cheyne-Stokes breathing
Hypotension, tachycardia, irregular respirations
Hypertension, tachycardia, apnea

Correct answer: Hypertension, bradycardia, irregular respirations

Cushing's triad consists of hypertension with widened pulse pressure, bradycardia, and irregular respirations, indicating imminent brainstem herniation.

Question 33: Which of the following is the PRIMARY mechanism of shock in a patient with a massive pulmonary embolism?

Decreased preload from hemorrhage
Obstruction of right ventricular outflow causing obstructive shock (Correct answer)
Loss of sympathetic tone from spinal injury
Vasodilation from inflammatory mediators

Correct answer: Obstruction of right ventricular outflow causing obstructive shock

Massive PE obstructs right ventricular outflow, increases right heart afterload, reduces cardiac output, and causes obstructive shock.

Question 34: A trauma patient has a BP of 88/60 mmHg, HR 128 bpm, and cool, mottled skin after a stab wound to the abdomen. Which shock classification best fits this presentation?

Class III hemorrhagic shock (Correct answer)
Class II hemorrhagic shock
Class IV hemorrhagic shock
Class I hemorrhagic shock

Correct answer: Class III hemorrhagic shock

Class III hemorrhagic shock involves 30–40% blood volume loss and presents with marked tachycardia, hypotension, and altered perfusion signs.

Question 35: A patient involved in a high-speed crash presents with left flank pain and gross hematuria. CT shows a Grade III renal laceration. What is the typical management?

Nonoperative management with close monitoring (Correct answer)
Immediate surgical nephrectomy
Emergent angioembolization always required
Immediate urologic stent placement

Correct answer: Nonoperative management with close monitoring

Grade I–III renal lacerations in hemodynamically stable patients are typically managed nonoperatively with serial imaging and monitoring.

Question 36: A cyclist is brought in after a high-speed crash with suspected pelvic fracture. He is diaphoretic, HR 136, BP 74/50. What type of shock is MOST likely?

Neurogenic shock
Hemorrhagic shock (Correct answer)
Obstructive shock
Distributive shock

Correct answer: Hemorrhagic shock

Pelvic fractures can cause massive retroperitoneal hemorrhage, making hemorrhagic shock the most likely etiology.

Question 37: In which scenario would a nurse NOT qualify to sit for the TNCC course?

The nurse works night shifts exclusively
The nurse has no prior trauma nursing experience but has an active RN license
The nurse works in a pediatric emergency department
The nurse holds a temporary RN license pending state board results (Correct answer)

Correct answer: The nurse holds a temporary RN license pending state board results

TNCC requires a current, active RN license; a temporary permit pending board results does not meet the licensure prerequisite.

Question 38: A patient with a long bone fracture develops acute confusion, tachycardia, and fever 24 hours post-injury. Which condition should be highest on the differential?

Opioid toxicity
Fat embolism syndrome (Correct answer)
Pulmonary embolism
Septic shock

Correct answer: Fat embolism syndrome

Fat embolism syndrome typically occurs 24–72 hours after long bone fractures and presents with the triad of respiratory failure, neurologic dysfunction (including confusion), and petechial rash.

Question 39: Massive hemothorax is defined as blood accumulation in the pleural space of at least how much?

750 mL
1,000 mL
1,500 mL (Correct answer)
500 mL

Correct answer: 1,500 mL

Massive hemothorax is defined as 1,500 mL or more of blood in the pleural space, which causes significant hemodynamic compromise and requires immediate intervention.

Question 40: A patient with a stab wound to the neck presents with subcutaneous emphysema and stridor. The MOST appropriate initial airway intervention is:

Immediate tracheostomy by the nurse
Early definitive airway before edema occludes the airway (Correct answer)
Needle decompression of the neck
High-flow oxygen via non-rebreather mask and observation

Correct answer: Early definitive airway before edema occludes the airway

Expanding neck hematoma or tracheal injury can rapidly occlude the airway; early definitive airway securement is critical before complete obstruction occurs.

Question 41: 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?

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

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 42: Which mechanism of injury is most associated with hollow viscus (bowel) perforation in blunt abdominal trauma?

Rear-impact collision
Direct blow to the epigastrium
Lap belt restraint without shoulder harness (Correct answer)
Lateral impact motor vehicle collision

Correct answer: Lap belt restraint without shoulder harness

Lap belt–only restraint causes a classic pattern of bowel perforation and lumbar spine fracture (Chance fracture) because the bowel is compressed against the spine.

Question 43: Rapid sequence intubation (RSI) in trauma includes a defasciculating dose of a non-depolarizing agent before succinylcholine primarily to:

Prevent bradycardia from succinylcholine
Increase duration of paralysis
Reverse succinylcholine if intubation fails
Reduce muscle fasciculations that may elevate intracranial pressure (Correct answer)

Correct answer: Reduce muscle fasciculations that may elevate intracranial pressure

A small defasciculating dose of a non-depolarizing agent blunts succinylcholine-induced fasciculations, which can transiently raise intracranial and intraocular pressure.

Question 44: How does the TNCC program reinforce critical thinking in trauma care?

By teaching nursing theories through lectures only
Through hands-on simulations and case study discussions (Correct answer)
By observing live surgeries
By assigning textbook reading only

Correct answer: Through hands-on simulations and case study discussions

TNCC effectively reinforces critical thinking by moving beyond theoretical lectures to practical application. Hands-on simulations allow nurses to practice assessment and intervention skills in a realistic, controlled environment, while case study discussions challenge them to analyze complex scenarios, make rapid decisions, and prioritize care, thereby developing crucial clinical judgment.

Question 45: A patient with multiple rib fractures has distended neck veins, tracheal deviation to the right, absent breath sounds on the left, and BP of 70/40. The IMMEDIATE intervention is:

Chest X-ray to confirm diagnosis
Insertion of a chest tube on the right side
Needle decompression at the 2nd intercostal space, midclavicular line on the left (Correct answer)
Emergency thoracotomy in the trauma bay

Correct answer: Needle decompression at the 2nd intercostal space, midclavicular line on the left

Needle decompression at the 2nd ICS MCL on the affected side (left) is the immediate life-saving intervention for tension pneumothorax.

Question 46: In pediatric trauma, which location is preferred for intraosseous (IO) access when IV access cannot be rapidly established?

Iliac crest
Distal femur
Calcaneus
Proximal tibia (Correct answer)

Correct answer: Proximal tibia

The proximal tibia is the preferred primary IO site in children due to the large, flat, easily palpable surface and thin cortex.

Question 47: Which pediatric anatomical consideration affects airway management during the initial assessment of a child?

Pediatric airways are wider and longer than adults
Children have a higher larynx position making intubation easier
Pediatric patients have more rigid chest walls
Children have a larger tongue relative to the airway (Correct answer)

Correct answer: Children have a larger tongue relative to the airway

Children have a proportionally larger tongue and softer, more anterior airway, making obstruction and airway management more challenging.

Question 48: How often must a nurse complete TNCC to maintain certification?

Every 2 years (Correct answer)
Every 4 years
Every 3 years
Every 5 years

Correct answer: Every 2 years

TNCC certification is valid for 2 years, after which renewal is required.

Question 49: When assessing a trauma patient for early signs of shock, which combination of findings suggests compensated shock?

Normal BP, tachycardia, anxiety, and narrowed pulse pressure (Correct answer)
Normal BP, normal HR, and decreased level of consciousness
Hypotension, wide pulse pressure, and pale skin
Hypotension, bradycardia, and warm skin

Correct answer: Normal BP, tachycardia, anxiety, and narrowed pulse pressure

In compensated shock, BP is maintained by compensatory vasoconstriction (narrowed pulse pressure) and increased heart rate, while the patient remains anxious.

Question 50: What is the primary purpose of professional certification in Musculoskeletal Trauma?

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

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.

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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