ATLS Post Test 2026-2027 Study Guide
150 High-Yield MCQs & Verified Answers (Graded A+)
, Airway & Ventilatory Management (Questions 1–10)
Q1. A 24-year-old male trauma patient presents with massive facial fractures
and severe oral bleeding. He is obtunded and gurgling. What is the immediate
next step?
A) Perform endotracheal intubation via direct laryngoscopy
B) Apply a non-rebreather oxygen mask at 15 L/min
(📌) C) Clear the airway via suction and perform a surgical cricothyroidotomy
D) Obtain a non-contrast CT scan of the facial bones
Rationale: Massive midface fractures and hemorrhage contraindicate blind or
standard oral intubation due to anatomical disruption. A surgical airway is
mandatory to secure ventilation safely.
Q2. During a direct laryngoscopy on a trauma patient, you cannot visualize the
vocal cords. What baseline maneuver optimizes the laryngeal view?
(📌) A) External laryngeal manipulation (BURP maneuver)
B) Immediate hyperventilation via bag-valve-mask
C) Insertion of a nasopharyngeal airway blindly
D) Extension of the cervical spine
Rationale: Backward, upward, rightward pressure (BURP) on the thyroid
cartilage brings the vocal cords into view without moving the cervical spine.
Q3. What is the most definitive method to confirm proper placement of an
endotracheal tube in the emergency department?
A) Auscultation of bilateral breath sounds
B) Symmetric chest rise and fall
(📌) C) Continuous waveform capnography
D) Post-intubation portable chest X-ray
Rationale: Waveform capnography detects exhaled carbon dioxide
continuously. It remains the gold standard for confirming intratracheal tube
placement.
Q4. A maxillofacial trauma patient requires airway control. Why is nasotracheal
intubation absolutely contraindicated?
A) It triggers reflex bradycardia
(📌) B) Risk of intracranial tube migration through a cribriform plate fracture
C) It causes severe laryngospasm
D) It requires a fully paralyzed patient
Rationale: Midface or basilar skull trauma allows a nasal tube to enter the
anterior cranial fossa via fractured bony plates.
, Q5. A 35-year-old female presents with a stab wound to the trachea. Air is
bubbling from the wound. What is the best action?
A) Pack the wound tightly with sterile gauze
(📌) B) Intubate the patient, advancing the cuff distal to the tracheal injury
C) Perform an immediate emergency tracheostomy
D) Place a chest tube on the ipsilateral side
Rationale: Placing the endotracheal tube cuff distal to the tear seals the airway,
stops air leaks, and ensures mechanical ventilation.
Q6. Which physiological parameter is the primary target when pre-oxygenating
a trauma patient before intubation?
A) Raising the arterial pH
(📌) B) Maximizing the functional residual capacity (FRC) oxygen reservoir
C) Decreasing the systemic vascular resistance
D) Reducing the intracranial pressure
Rationale: Pre-oxygenation replaces nitrogen in the alveoli (FRC) with pure
oxygen, extending the safe apnea window before desaturation occurs.
Q7. A trauma patient exhibits a Cormack-Lehane Grade IV view during
laryngoscopy. What does this indicate?
A) Full view of the vocal cords
B) Only the posterior arytenoid cartilages are visible
C) Only the epiglottis is visible
(📌) D) No glottic structures or epiglottis can be visualized
Rationale: Grade IV represents a completely obstructed view where only the
soft palate or tongue is visible, predicting an extremely difficult airway.
Q8. When performing a surgical cricothyroidotomy, where should the initial
horizontal anatomical incision be placed?
(📌) A) Through the cricothyroid membrane between the thyroid and cricoid
cartilages
B) Directly over the hyoid bone
C) Between the second and third tracheal rings
D) Directly above the suprasternal notch
Rationale: The cricothyroid membrane provides a superficial, avascular entry
point directly into the larynx below the vocal cords.
Q9. A patient is intubated following a motor vehicle collision. Ten minutes later,
peak airway pressures spike and breath sounds vanish on the left. What is the
most likely cause?
A) Left-sided diaphragmatic rupture
(📌) B) Right mainstem bronchus intubation
C) Acute pulmonary embolism
D) Tracheoesophageal fistula formation
Rationale: Advancing an endotracheal tube too far usually sends it down the
straighter right mainstem bronchus, completely occluding ventilation to the left
lung.
Q10. What is the drug of choice for rapid sequence intubation (RSI) paralysis in
a trauma patient with no history of neuromuscular disease or recent burns?
150 High-Yield MCQs & Verified Answers (Graded A+)
, Airway & Ventilatory Management (Questions 1–10)
Q1. A 24-year-old male trauma patient presents with massive facial fractures
and severe oral bleeding. He is obtunded and gurgling. What is the immediate
next step?
A) Perform endotracheal intubation via direct laryngoscopy
B) Apply a non-rebreather oxygen mask at 15 L/min
(📌) C) Clear the airway via suction and perform a surgical cricothyroidotomy
D) Obtain a non-contrast CT scan of the facial bones
Rationale: Massive midface fractures and hemorrhage contraindicate blind or
standard oral intubation due to anatomical disruption. A surgical airway is
mandatory to secure ventilation safely.
Q2. During a direct laryngoscopy on a trauma patient, you cannot visualize the
vocal cords. What baseline maneuver optimizes the laryngeal view?
(📌) A) External laryngeal manipulation (BURP maneuver)
B) Immediate hyperventilation via bag-valve-mask
C) Insertion of a nasopharyngeal airway blindly
D) Extension of the cervical spine
Rationale: Backward, upward, rightward pressure (BURP) on the thyroid
cartilage brings the vocal cords into view without moving the cervical spine.
Q3. What is the most definitive method to confirm proper placement of an
endotracheal tube in the emergency department?
A) Auscultation of bilateral breath sounds
B) Symmetric chest rise and fall
(📌) C) Continuous waveform capnography
D) Post-intubation portable chest X-ray
Rationale: Waveform capnography detects exhaled carbon dioxide
continuously. It remains the gold standard for confirming intratracheal tube
placement.
Q4. A maxillofacial trauma patient requires airway control. Why is nasotracheal
intubation absolutely contraindicated?
A) It triggers reflex bradycardia
(📌) B) Risk of intracranial tube migration through a cribriform plate fracture
C) It causes severe laryngospasm
D) It requires a fully paralyzed patient
Rationale: Midface or basilar skull trauma allows a nasal tube to enter the
anterior cranial fossa via fractured bony plates.
, Q5. A 35-year-old female presents with a stab wound to the trachea. Air is
bubbling from the wound. What is the best action?
A) Pack the wound tightly with sterile gauze
(📌) B) Intubate the patient, advancing the cuff distal to the tracheal injury
C) Perform an immediate emergency tracheostomy
D) Place a chest tube on the ipsilateral side
Rationale: Placing the endotracheal tube cuff distal to the tear seals the airway,
stops air leaks, and ensures mechanical ventilation.
Q6. Which physiological parameter is the primary target when pre-oxygenating
a trauma patient before intubation?
A) Raising the arterial pH
(📌) B) Maximizing the functional residual capacity (FRC) oxygen reservoir
C) Decreasing the systemic vascular resistance
D) Reducing the intracranial pressure
Rationale: Pre-oxygenation replaces nitrogen in the alveoli (FRC) with pure
oxygen, extending the safe apnea window before desaturation occurs.
Q7. A trauma patient exhibits a Cormack-Lehane Grade IV view during
laryngoscopy. What does this indicate?
A) Full view of the vocal cords
B) Only the posterior arytenoid cartilages are visible
C) Only the epiglottis is visible
(📌) D) No glottic structures or epiglottis can be visualized
Rationale: Grade IV represents a completely obstructed view where only the
soft palate or tongue is visible, predicting an extremely difficult airway.
Q8. When performing a surgical cricothyroidotomy, where should the initial
horizontal anatomical incision be placed?
(📌) A) Through the cricothyroid membrane between the thyroid and cricoid
cartilages
B) Directly over the hyoid bone
C) Between the second and third tracheal rings
D) Directly above the suprasternal notch
Rationale: The cricothyroid membrane provides a superficial, avascular entry
point directly into the larynx below the vocal cords.
Q9. A patient is intubated following a motor vehicle collision. Ten minutes later,
peak airway pressures spike and breath sounds vanish on the left. What is the
most likely cause?
A) Left-sided diaphragmatic rupture
(📌) B) Right mainstem bronchus intubation
C) Acute pulmonary embolism
D) Tracheoesophageal fistula formation
Rationale: Advancing an endotracheal tube too far usually sends it down the
straighter right mainstem bronchus, completely occluding ventilation to the left
lung.
Q10. What is the drug of choice for rapid sequence intubation (RSI) paralysis in
a trauma patient with no history of neuromuscular disease or recent burns?
