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ATLS Exam – American College of Surgeons –
2026/2027 Edition – Questions and Answers for
Trauma Care Providers and Surgeons
Short Description:
This comprehensive 450-question examination is the definitive preparation resource for trauma
care providers, surgeons, and medical professionals seeking ATLS certification through the
American College of Surgeons. Meticulously aligned with the ATLS 10th Edition and anticipated
11th Edition guidelines, this resource systematically covers all critical domains: Initial Assessment
and Primary Survey (ABCDE), Airway and Ventilatory Management, Shock and Hemorrhage
Control, Thoracic Trauma, Abdominal and Pelvic Trauma, Head Trauma, Spine and Spinal Cord
Trauma, Musculoskeletal Trauma, Thermal Injuries, Pediatric Trauma, Geriatric Trauma, Trauma
in Pregnancy, Transfer to Definitive Care, and Team Dynamics and Communication. Each
question is paired with a detailed, evidence-based Rationale designed to reinforce the ATLS
systematic approach, clinical decision-making, and life-saving interventions. Whether you are a
surgical resident, emergency physician, anesthesiologist, or advanced practice provider, this guide
provides a 100% guaranteed path to mastering the ATLS principles and passing the certification
examination with confidence.
Instructions: Select the single best Answer for each question. Rationales follow immediately after
the Answer choice.
Section 1: Initial Assessment & Primary Survey (ABCDE) (Questions 1-50)
1. What is the correct sequence of the primary survey in ATLS?
A) ABCDE: Airway, Breathing, Circulation, Disability, Exposure
B) CAB: Circulation, Airway, Breathing
C) DCBA: Disability, Circulation, Breathing, Airway
D) ABDCE: Airway, Breathing, Disability, Circulation, Exposure
Answer: A. ABCDE: Airway, Breathing, Circulation, Disability, Exposure.
Rationale: The ATLS primary survey follows a strict, prioritized sequence: Airway with cervical
spine protection, Breathing and ventilation, Circulation with hemorrhage control, Disability
(neurologic status), and Exposure/Environmental control. This sequence ensures the most
immediately life-threatening conditions are addressed first. The ABCs are always prioritized over
disability and exposure.
2. During the primary survey, when is a definitive airway indicated?
A) When the patient requests it.
B) When there is inability to maintain a patent airway by other means, inability to protect the
airway (loss of gag reflex), or anticipated clinical deterioration.
C) Only when the GCS is less than 3.
D) Only when the patient is in cardiac arrest.
Answer: B. When there is inability to maintain a patent airway by other means, inability to
,2 |P a g e
protect the airway (loss of gag reflex), or anticipated clinical deterioration.
Rationale: A definitive airway (endotracheal intubation or surgical airway) is required when the
patient cannot maintain their own airway, cannot protect it from aspiration, or when
deterioration is expected (e.g., expanding neck hematoma, inhalation injury, severe head injury
with GCS ≤8).
3. What does the "A" in the primary survey include besides assessing the airway?
A) Only looking in the mouth.
B) Protection of the cervical spine by manual in-line immobilization or a rigid cervical collar.
C) Administering oxygen.
D) Assessing for abdominal tenderness.
Answer: B. Protection of the cervical spine by manual in-line immobilization or a rigid cervical
collar.
Rationale: Every trauma patient is assumed to have a cervical spine injury until proven otherwise.
Airway assessment and management must be performed with simultaneous cervical spine
protection to avoid causing or worsening a spinal cord injury.
4. A patient arrives with a GCS of 13. They are speaking in full sentences but have gurgling
respirations. What is the first action?
A) Obtain a CT scan.
B) Suction the airway and perform a jaw thrust/chin lift.
C) Insert a chest tube.
D) Administer IV fluids.
Answer: B. Suction the airway and perform a jaw thrust/chin lift.
Rationale: The gurgling indicates an airway obstruction (blood, vomitus, or secretions). The
priority is to clear the airway immediately. The jaw thrust (if trauma suspected) or chin lift opens
the airway. The patient is speaking, so the airway is partially patent, but it is threatened.
Definitive airway may be needed soon.
5. What is the "golden hour" in trauma care?
A) The first hour after hospital discharge.
B) The concept that rapid assessment, resuscitation, and definitive care within the first hour after
injury improves survival, though the time is not literal.
C) Exactly 60 minutes of resuscitation.
D) The time it takes to transfer a patient.
Answer: B. The concept that rapid assessment, resuscitation, and definitive care within the first
hour after injury improves survival, though the time is not literal.
Rationale: The "golden hour" emphasizes the critical importance of time in trauma. Rapid
identification and management of life-threatening injuries reduce mortality. It is a conceptual
framework, not a specific clock time. The ATLS system is designed to maximize efficiency during
this critical window.
6. What is the most common cause of preventable death in trauma patients?
A) Severe traumatic brain injury
B) Hemorrhage
C) Tension pneumothorax
,3|P ag e
D) Cardiac tamponade
Answer: B. Hemorrhage.
Rationale: Exsanguination from uncontrolled hemorrhage is the leading cause of preventable
death in trauma. The ATLS primary survey emphasizes circulation assessment and hemorrhage
control as a top priority. Direct pressure, tourniquets, pelvic binding, and early blood product
resuscitation are critical interventions.
7. What is the "Lethal Triad" in trauma?
A) Hypothermia, acidosis, and coagulopathy
B) Hypertension, tachycardia, and fever
C) Hypoxia, hypercapnia, and hypertension
D) Bradycardia, hypotension, and alkalosis
Answer: A. Hypothermia, acidosis, and coagulopathy.
Rationale: The lethal triad (or "bloody vicious cycle") describes the self-perpetuating cycle of
hypothermia, metabolic acidosis, and coagulopathy that drastically increases mortality in severely
injured patients. Hypothermia impairs platelet function, acidosis impairs clotting factor function,
and coagulopathy worsens hemorrhage, leading to more hypothermia and acidosis. Breaking this
cycle is a core goal of damage control resuscitation.
8. During the primary survey, a patient is found to have a distended, rigid abdomen and is
hypotensive. What is the immediate priority?
A) CT scan of the abdomen
B) Immediate surgical consultation and preparation for laparotomy
C) Insertion of a nasogastric tube
D) Diagnostic peritoneal lavage
Answer: B. Immediate surgical consultation and preparation for laparotomy.
Rationale: A rigid, distended abdomen with hypotension in a trauma patient indicates intra-
abdominal hemorrhage until proven otherwise. This patient needs immediate operative
intervention, not imaging. Time in the CT scanner may be fatal. The patient should go directly to
the operating room.
9. What is the purpose of the secondary survey?
A) To repeat the primary survey.
B) A head-to-toe complete physical examination to identify all injuries after the primary survey is
completed and resuscitation is underway.
C) To obtain a detailed history of the mechanism of injury.
D) To perform only neurological evaluation.
Answer: B. A head-to-toe complete physical examination to identify all injuries after the primary
survey is completed and resuscitation is underway.
Rationale: The secondary survey is a systematic, complete physical examination that occurs after
the primary survey is complete, resuscitation is initiated, and the patient is showing signs of
normalization. It includes inspection, palpation, auscultation, and percussion of all body regions,
as well as a focused neurologic exam.
10. What does the AMPLE history include?
A) Age, Mechanism, Past medications, Last meal, Exposure
, 4|P ag e
B) Allergies, Medications, Past medical history, Last meal, Events/Environment related to injury
C) Airway, Monitoring, Pain, Labs, ECG
D) Assessment, Management, Plan, Labs, Examination
Answer: B. Allergies, Medications, Past medical history, Last meal, Events/Environment related to
injury.
Rationale: AMPLE is a standardized mnemonic used during the secondary survey to gather
critical medical history from the patient, family, or prehospital personnel. It ensures key
information (allergies, medications, pre-existing conditions, timing of last oral intake, and
mechanism of injury) is not missed.
11. What is the initial step in assessing "B" (Breathing) in the primary survey?
A) Chest X-ray
B) Inspection, palpation, auscultation, and pulse oximetry
C) Arterial blood gas
D) Bronchoscopy
Answer: B. Inspection, palpation, auscultation, and pulse oximetry.
Rationale: The "B" assessment begins with simple clinical examination: look (tracheal deviation,
chest wall movement, bruising, respiratory rate), feel (subcutaneous emphysema, tenderness,
crepitus), listen (breath sounds bilaterally), and measure oxygen saturation. These bedside
assessments identify life-threatening injuries (tension pneumothorax, massive hemothorax, flail
chest) within seconds.
12. What is the definition of "massive hemothorax"?
A) Any amount of blood in the chest.
B) Accumulation of more than 1500 mL of blood in the thoracic cavity, or ongoing bleeding of
more than 200 mL/hour for 2-4 hours.
C) A chest tube output of 100 mL.
D) Blood in the chest with a pneumothorax.
Answer: B. Accumulation of more than 1500 mL of blood in the thoracic cavity, or ongoing
bleeding of more than 200 mL/hour for 2-4 hours.
Rationale: Massive hemothorax is a life-threatening condition causing hemorrhagic shock and
compromised ventilation from lung compression. Immediate chest tube insertion (36-40 French)
is required for drainage. Indications for thoracotomy include initial drainage of >1500 mL or
persistent output >200 mL/hour.
13. What is the most important initial intervention for a tension pneumothorax?
A) Chest X-ray
B) Needle decompression at the 2nd intercostal space, midclavicular line (or 4th/5th ICS, anterior
axillary line), followed by chest tube insertion
C) Endotracheal intubation
D) Pericardiocentesis
Answer: B. Needle decompression at the 2nd intercostal space, midclavicular line (or 4th/5th ICS,
anterior axillary line), followed by chest tube insertion.
Rationale: Tension pneumothorax is a clinical diagnosis (hypotension, distended neck veins,
tracheal deviation, absent breath sounds, hyperresonance). Needle decompression is immediately
ATLS Exam – American College of Surgeons –
2026/2027 Edition – Questions and Answers for
Trauma Care Providers and Surgeons
Short Description:
This comprehensive 450-question examination is the definitive preparation resource for trauma
care providers, surgeons, and medical professionals seeking ATLS certification through the
American College of Surgeons. Meticulously aligned with the ATLS 10th Edition and anticipated
11th Edition guidelines, this resource systematically covers all critical domains: Initial Assessment
and Primary Survey (ABCDE), Airway and Ventilatory Management, Shock and Hemorrhage
Control, Thoracic Trauma, Abdominal and Pelvic Trauma, Head Trauma, Spine and Spinal Cord
Trauma, Musculoskeletal Trauma, Thermal Injuries, Pediatric Trauma, Geriatric Trauma, Trauma
in Pregnancy, Transfer to Definitive Care, and Team Dynamics and Communication. Each
question is paired with a detailed, evidence-based Rationale designed to reinforce the ATLS
systematic approach, clinical decision-making, and life-saving interventions. Whether you are a
surgical resident, emergency physician, anesthesiologist, or advanced practice provider, this guide
provides a 100% guaranteed path to mastering the ATLS principles and passing the certification
examination with confidence.
Instructions: Select the single best Answer for each question. Rationales follow immediately after
the Answer choice.
Section 1: Initial Assessment & Primary Survey (ABCDE) (Questions 1-50)
1. What is the correct sequence of the primary survey in ATLS?
A) ABCDE: Airway, Breathing, Circulation, Disability, Exposure
B) CAB: Circulation, Airway, Breathing
C) DCBA: Disability, Circulation, Breathing, Airway
D) ABDCE: Airway, Breathing, Disability, Circulation, Exposure
Answer: A. ABCDE: Airway, Breathing, Circulation, Disability, Exposure.
Rationale: The ATLS primary survey follows a strict, prioritized sequence: Airway with cervical
spine protection, Breathing and ventilation, Circulation with hemorrhage control, Disability
(neurologic status), and Exposure/Environmental control. This sequence ensures the most
immediately life-threatening conditions are addressed first. The ABCs are always prioritized over
disability and exposure.
2. During the primary survey, when is a definitive airway indicated?
A) When the patient requests it.
B) When there is inability to maintain a patent airway by other means, inability to protect the
airway (loss of gag reflex), or anticipated clinical deterioration.
C) Only when the GCS is less than 3.
D) Only when the patient is in cardiac arrest.
Answer: B. When there is inability to maintain a patent airway by other means, inability to
,2 |P a g e
protect the airway (loss of gag reflex), or anticipated clinical deterioration.
Rationale: A definitive airway (endotracheal intubation or surgical airway) is required when the
patient cannot maintain their own airway, cannot protect it from aspiration, or when
deterioration is expected (e.g., expanding neck hematoma, inhalation injury, severe head injury
with GCS ≤8).
3. What does the "A" in the primary survey include besides assessing the airway?
A) Only looking in the mouth.
B) Protection of the cervical spine by manual in-line immobilization or a rigid cervical collar.
C) Administering oxygen.
D) Assessing for abdominal tenderness.
Answer: B. Protection of the cervical spine by manual in-line immobilization or a rigid cervical
collar.
Rationale: Every trauma patient is assumed to have a cervical spine injury until proven otherwise.
Airway assessment and management must be performed with simultaneous cervical spine
protection to avoid causing or worsening a spinal cord injury.
4. A patient arrives with a GCS of 13. They are speaking in full sentences but have gurgling
respirations. What is the first action?
A) Obtain a CT scan.
B) Suction the airway and perform a jaw thrust/chin lift.
C) Insert a chest tube.
D) Administer IV fluids.
Answer: B. Suction the airway and perform a jaw thrust/chin lift.
Rationale: The gurgling indicates an airway obstruction (blood, vomitus, or secretions). The
priority is to clear the airway immediately. The jaw thrust (if trauma suspected) or chin lift opens
the airway. The patient is speaking, so the airway is partially patent, but it is threatened.
Definitive airway may be needed soon.
5. What is the "golden hour" in trauma care?
A) The first hour after hospital discharge.
B) The concept that rapid assessment, resuscitation, and definitive care within the first hour after
injury improves survival, though the time is not literal.
C) Exactly 60 minutes of resuscitation.
D) The time it takes to transfer a patient.
Answer: B. The concept that rapid assessment, resuscitation, and definitive care within the first
hour after injury improves survival, though the time is not literal.
Rationale: The "golden hour" emphasizes the critical importance of time in trauma. Rapid
identification and management of life-threatening injuries reduce mortality. It is a conceptual
framework, not a specific clock time. The ATLS system is designed to maximize efficiency during
this critical window.
6. What is the most common cause of preventable death in trauma patients?
A) Severe traumatic brain injury
B) Hemorrhage
C) Tension pneumothorax
,3|P ag e
D) Cardiac tamponade
Answer: B. Hemorrhage.
Rationale: Exsanguination from uncontrolled hemorrhage is the leading cause of preventable
death in trauma. The ATLS primary survey emphasizes circulation assessment and hemorrhage
control as a top priority. Direct pressure, tourniquets, pelvic binding, and early blood product
resuscitation are critical interventions.
7. What is the "Lethal Triad" in trauma?
A) Hypothermia, acidosis, and coagulopathy
B) Hypertension, tachycardia, and fever
C) Hypoxia, hypercapnia, and hypertension
D) Bradycardia, hypotension, and alkalosis
Answer: A. Hypothermia, acidosis, and coagulopathy.
Rationale: The lethal triad (or "bloody vicious cycle") describes the self-perpetuating cycle of
hypothermia, metabolic acidosis, and coagulopathy that drastically increases mortality in severely
injured patients. Hypothermia impairs platelet function, acidosis impairs clotting factor function,
and coagulopathy worsens hemorrhage, leading to more hypothermia and acidosis. Breaking this
cycle is a core goal of damage control resuscitation.
8. During the primary survey, a patient is found to have a distended, rigid abdomen and is
hypotensive. What is the immediate priority?
A) CT scan of the abdomen
B) Immediate surgical consultation and preparation for laparotomy
C) Insertion of a nasogastric tube
D) Diagnostic peritoneal lavage
Answer: B. Immediate surgical consultation and preparation for laparotomy.
Rationale: A rigid, distended abdomen with hypotension in a trauma patient indicates intra-
abdominal hemorrhage until proven otherwise. This patient needs immediate operative
intervention, not imaging. Time in the CT scanner may be fatal. The patient should go directly to
the operating room.
9. What is the purpose of the secondary survey?
A) To repeat the primary survey.
B) A head-to-toe complete physical examination to identify all injuries after the primary survey is
completed and resuscitation is underway.
C) To obtain a detailed history of the mechanism of injury.
D) To perform only neurological evaluation.
Answer: B. A head-to-toe complete physical examination to identify all injuries after the primary
survey is completed and resuscitation is underway.
Rationale: The secondary survey is a systematic, complete physical examination that occurs after
the primary survey is complete, resuscitation is initiated, and the patient is showing signs of
normalization. It includes inspection, palpation, auscultation, and percussion of all body regions,
as well as a focused neurologic exam.
10. What does the AMPLE history include?
A) Age, Mechanism, Past medications, Last meal, Exposure
, 4|P ag e
B) Allergies, Medications, Past medical history, Last meal, Events/Environment related to injury
C) Airway, Monitoring, Pain, Labs, ECG
D) Assessment, Management, Plan, Labs, Examination
Answer: B. Allergies, Medications, Past medical history, Last meal, Events/Environment related to
injury.
Rationale: AMPLE is a standardized mnemonic used during the secondary survey to gather
critical medical history from the patient, family, or prehospital personnel. It ensures key
information (allergies, medications, pre-existing conditions, timing of last oral intake, and
mechanism of injury) is not missed.
11. What is the initial step in assessing "B" (Breathing) in the primary survey?
A) Chest X-ray
B) Inspection, palpation, auscultation, and pulse oximetry
C) Arterial blood gas
D) Bronchoscopy
Answer: B. Inspection, palpation, auscultation, and pulse oximetry.
Rationale: The "B" assessment begins with simple clinical examination: look (tracheal deviation,
chest wall movement, bruising, respiratory rate), feel (subcutaneous emphysema, tenderness,
crepitus), listen (breath sounds bilaterally), and measure oxygen saturation. These bedside
assessments identify life-threatening injuries (tension pneumothorax, massive hemothorax, flail
chest) within seconds.
12. What is the definition of "massive hemothorax"?
A) Any amount of blood in the chest.
B) Accumulation of more than 1500 mL of blood in the thoracic cavity, or ongoing bleeding of
more than 200 mL/hour for 2-4 hours.
C) A chest tube output of 100 mL.
D) Blood in the chest with a pneumothorax.
Answer: B. Accumulation of more than 1500 mL of blood in the thoracic cavity, or ongoing
bleeding of more than 200 mL/hour for 2-4 hours.
Rationale: Massive hemothorax is a life-threatening condition causing hemorrhagic shock and
compromised ventilation from lung compression. Immediate chest tube insertion (36-40 French)
is required for drainage. Indications for thoracotomy include initial drainage of >1500 mL or
persistent output >200 mL/hour.
13. What is the most important initial intervention for a tension pneumothorax?
A) Chest X-ray
B) Needle decompression at the 2nd intercostal space, midclavicular line (or 4th/5th ICS, anterior
axillary line), followed by chest tube insertion
C) Endotracheal intubation
D) Pericardiocentesis
Answer: B. Needle decompression at the 2nd intercostal space, midclavicular line (or 4th/5th ICS,
anterior axillary line), followed by chest tube insertion.
Rationale: Tension pneumothorax is a clinical diagnosis (hypotension, distended neck veins,
tracheal deviation, absent breath sounds, hyperresonance). Needle decompression is immediately
