Answers & Detailed Rationales (Updated 2026) | Trauma
Assessment & Triage, Airway & Cervical Spine Management, Shock &
Hemorrhage Control, Head & Spinal Injuries, Chest & Abdominal Trauma,
Fractures & Musculoskeletal Emergencies, Burn Management, EMS
Trauma Protocols, Rapid Emergency Response & Clinical Scenarios
Question 1: During the primary survey of a trauma patient, which intervention takes
priority when a patient presents with massive external hemorrhage from a lower
extremity?
A. Applying a cervical collar
B. Administering high-flow oxygen
C. Direct pressure or tourniquet application
D. Obtaining a full set of vital signs
CORRECT ANSWER: C. Direct pressure or tourniquet application
Rationale: In the primary survey following the MARCH or CAB algorithm, life-
threatening hemorrhage is addressed immediately after ensuring scene safety.
Uncontrolled external bleeding is a leading cause of preventable trauma death;
therefore, direct pressure or tourniquet application takes precedence over airway
interventions when hemorrhage is massive and immediately life-threatening.
Question 2: A 28-year-old male involved in a high-speed MVC presents with
paradoxical chest wall movement, severe dyspnea, and hypoxia. Which injury
should the paramedic suspect FIRST?
A. Tension pneumothorax
B. Flail chest
C. Cardiac tamponade
D. Hemothorax
CORRECT ANSWER: B. Flail chest
Rationale: Paradoxical chest wall movement—where a segment of the rib cage moves
inward during inspiration and outward during expiration—is the hallmark sign of flail
chest, typically caused by multiple rib fractures. While tension pneumothorax and
hemothorax may coexist, the specific finding of paradoxical motion directs the initial
suspicion to flail chest.
Question 3: Which of the following best describes the physiological rationale for
permissive hypotension in penetrating torso trauma?
A. It prevents coagulopathy by maintaining normal blood pressure
B. It reduces the risk of dislodging forming clots by avoiding aggressive fluid
resuscitation
C. It ensures adequate cerebral perfusion during hemorrhagic shock
D. It minimizes the need for surgical intervention
,CORRECT ANSWER: B. It reduces the risk of dislodging forming clots by avoiding
aggressive fluid resuscitation
Rationale: Permissive hypotension targets a lower-than-normal systolic blood pressure
(typically 80-90 mmHg) in penetrating trauma with active hemorrhage to avoid
disrupting early clot formation and exacerbating bleeding. Aggressive fluid
administration can increase blood pressure prematurely, potentially "popping the clot"
and worsening hemorrhage before surgical control is achieved.
Question 4: A trauma patient has a Glasgow Coma Scale score of 10. Which
component breakdown is MOST consistent with this score?
A. Eyes 2, Verbal 3, Motor 5
B. Eyes 3, Verbal 4, Motor 3
C. Eyes 4, Verbal 2, Motor 4
D. Eyes 1, Verbal 5, Motor 4
CORRECT ANSWER: B. Eyes 3, Verbal 4, Motor 3
Rationale: The Glasgow Coma Scale assesses eye opening (1-4), verbal response (1-5),
and motor response (1-6). A score of 10 can be achieved by Eyes 3 (opens to speech),
Verbal 4 (confused conversation), and Motor 3 (abnormal flexion/decorticate posturing).
Option B sums to 10 and represents a plausible clinical presentation in moderate
traumatic brain injury.
Question 5: Which finding is MOST indicative of neurogenic shock rather than
hypovolemic shock in a trauma patient?
A. Tachycardia with hypotension
B. Bradycardia with hypotension and warm, dry skin
C. Delayed capillary refill and cool extremities
D. Elevated lactate and metabolic acidosis
CORRECT ANSWER: B. Bradycardia with hypotension and warm, dry skin
Rationale: Neurogenic shock results from spinal cord injury causing loss of
sympathetic tone, leading to vasodilation, hypotension, bradycardia (due to unopposed
vagal tone), and warm, dry skin from peripheral vasodilation. Hypovolemic shock
typically presents with tachycardia, cool/clammy skin, and delayed capillary refill due
to compensatory sympathetic activation.
Question 6: When applying a tourniquet for life-threatening extremity hemorrhage,
which practice is CORRECT?
A. Place the tourniquet over a joint for better compression
B. Tighten until bleeding stops and note the time of application
C. Use the narrowest possible band to minimize tissue damage
D. Remove the tourniquet every 15 minutes to assess bleeding
CORRECT ANSWER: B. Tighten until bleeding stops and note the time of application
,Rationale: Tourniquets should be applied 2-3 inches proximal to the wound (not over
joints), tightened until arterial bleeding ceases, and the time of application clearly
documented. Modern evidence supports leaving tourniquets in place until surgical
control; intermittent release increases bleeding risk and is no longer recommended.
Question 7: A patient with blunt abdominal trauma presents with left shoulder
pain. This finding is known as:
A. Cullen's sign
B. Grey Turner's sign
C. Kehr's sign
D. McBurney's point tenderness
CORRECT ANSWER: C. Kehr's sign
Rationale: Kehr's sign refers to referred pain to the left shoulder caused by irritation of
the diaphragm, often from splenic injury or hemoperitoneum. Cullen's sign
(periumbilical bruising) and Grey Turner's sign (flank bruising) suggest retroperitoneal
hemorrhage, while McBurney's point tenderness is associated with appendicitis.
Question 8: Which of the following is the MOST reliable prehospital indicator of
significant traumatic brain injury?
A. Presence of a scalp laceration
B. Mechanism of injury involving high-speed deceleration
C. Altered mental status or GCS <14
D. Pupillary inequality
CORRECT ANSWER: C. Altered mental status or GCS <14
Rationale: While mechanism and physical findings provide context, altered mental
status or a Glasgow Coma Scale score below 14 is the most sensitive and specific
prehospital indicator of significant traumatic brain injury. Pupillary changes may
indicate herniation but are late findings; scalp injuries do not correlate with intracranial
pathology.
Question 9: In a patient with suspected tension pneumothorax, which intervention
is performed BEFORE needle decompression?
A. Administering nebulized bronchodilators
B. Ensuring adequate oxygenation and preparing for rapid transport
C. Obtaining IV access for fluid resuscitation
D. Performing a detailed secondary survey
CORRECT ANSWER: B. Ensuring adequate oxygenation and preparing for rapid
transport
Rationale: While needle decompression is definitive for tension pneumothorax,
immediate supportive care—including high-flow oxygen and rapid transport to a trauma
center—is initiated concurrently. However, if tension pneumothorax is clinically
, diagnosed (severe respiratory distress, hypotension, tracheal deviation, absent breath
sounds), needle decompression should not be delayed for other interventions.
Question 10: Which pediatric trauma consideration is MOST accurate regarding
fluid resuscitation?
A. Children tolerate hypovolemia better than adults due to compensatory mechanisms
B. Initial fluid bolus for hypovolemic shock is 20 mL/kg of isotonic crystalloid
C. Hypertonic saline is first-line for pediatric traumatic brain injury
D. Oral rehydration is preferred in conscious pediatric trauma patients
CORRECT ANSWER: B. Initial fluid bolus for hypovolemic shock is 20 mL/kg of
isotonic crystalloid
Rationale: Pediatric Advanced Life Support guidelines recommend an initial 20 mL/kg
bolus of isotonic crystalloid (normal saline or lactated Ringer's) for hypovolemic shock
in children. Children have less physiological reserve than adults and decompensate
rapidly; thus, early, weight-based fluid resuscitation is critical. Hypertonic saline
remains investigational in pediatric TBI.
Question 11: A trauma patient has jugular venous distension, muffled heart
sounds, and hypotension. This triad is known as:
A. Cushing's triad
B. Beck's triad
C. Virchow's triad
D. Austin Flint triad
CORRECT ANSWER: B. Beck's triad
Rationale: Beck's triad—hypotension, jugular venous distension, and muffled heart
sounds—is classically associated with cardiac tamponade, often from penetrating
chest trauma. Cushing's triad (hypertension, bradycardia, irregular respirations)
indicates increased intracranial pressure; Virchow's triad relates to thrombosis risk
factors.
Question 12: Which mechanism of injury is MOST suggestive of potential cervical
spine injury?
A. Low-speed rear-end collision with headrest properly adjusted
B. Axial loading from a diving accident
C. Simple fall from standing height in an elderly patient
D. Minor sports collision without loss of consciousness
CORRECT ANSWER: B. Axial loading from a diving accident
Rationale: Axial loading forces, such as those experienced in diving accidents where
the head strikes the bottom, transmit force directly through the cervical spine and carry
high risk for vertebral fracture or spinal cord injury. While any trauma mechanism