ATLS MCQ (2026/2027) Master Question Bank & Study
Guide
Overview
Welcome to the comprehensive, fully verified master study guide for the
Advanced Life Support (ATLS) 2026 Curriculum. This document has been
meticulously structured to provide medical professionals, emergency
responders, and trainees with a premium, high-yield review bank. Featuring
rigorously verified clinical scenarios, precise diagnostic priorities, and immediate
life-saving interventions, this resource is designed to optimize retention and
ensure clinical excellence under pressure.
Master Question & Answer Bank
1. A construction worker falls two stories from a building and sustains
bilateral calcaneal fractures. In the emergency department, he is alert, vital
signs are normal, and he is complaining of severe pain in both heels and his
lower back. Lower extremity pulses are strong and there is no other
deformity. The suspected diagnosis is most likely to be confirmed by:
Answer: Complete spine x-ray series. Explanation: Axial loading injuries, such as
falls landing on the feet resulting in calcaneal fractures, have a high correlative
incidence of associated lumbar or thoracic spine fractures. A complete spinal
evaluation is mandatory.
2. The principle of balanced resuscitation is:
Answer: Permissive hypotension and early plasma infusion. Explanation:
Balanced resuscitation avoids excessive crystalloid administration, utilizing
permissive hypotension to limit clot disruption and early plasma administration
(coagulopathy prevention) in major trauma.
3. In managing the head-injured patient, the most important initial step is to:
Answer: Secure airway. Explanation: Preventing secondary brain injury from
hypoxia is paramount. Airway control and adequate oxygenation take absolute
precedence in primary trauma surveys.
, 4. A previously healthy, 70-kg (154-pound) man suffers an estimated acute
blood loss of 2 liters. Which one of the following statements applies to this
patient?
Answer: His systolic blood pressure will be decreased with a narrowed pulse
pressure. Explanation: A loss of 2 liters represents Class III/IV hemorrhage (>30-
40% blood volume), leading to decompensation marked by significant
hypotension and a narrowed pulse pressure from compensatory
vasoconstriction.
5. The diagnosis of shock must include:
Answer: Poor organ perfusion. Explanation: Shock is fundamentally a
physiological state characterized by inadequate cellular and tissue perfusion,
resulting in cellular hypoxia and anaerobic metabolism regardless of systemic
blood pressure.
6. A 7-year-old boy is brought to the emergency department by his parents
several minutes after he fell through a window. He is bleeding profusely from
a 6-cm wound of his medial right thigh.
Answer: Direct pressure. Explanation: Direct manual pressure—supplemented
by pressure dressings or tourniquets if necessary—is the immediate, most
effective initial maneuver to control external life-threatening hemorrhage.
7. For the patient with severe traumatic brain injury, profound hypocarbia
should be avoided to prevent:
Answer: Cerebral vasoconstriction with diminished perfusion. Explanation:
Excessive hyperventilation (leading to profound hypocapnia/hypocarbia) causes
cerebral vasoconstriction, drastically reducing cerebral blood flow and
worsening ischemia.
8. A 25-year-old man is brought to a hospital with a general surgeon after
being involved in a motor vehicle crash. Computed tomography shows an
aortic injury and splenic laceration with free abdominal fluid. His blood
pressure falls to 70 mm Hg after CT. The next step is:
Answer: Exploratory laparotomy. Explanation: Hemodynamic instability in the
face of ongoing internal hemorrhage (splenic rupture) requires immediate
surgical intervention over further diagnostic imaging or secondary repairs.
Guide
Overview
Welcome to the comprehensive, fully verified master study guide for the
Advanced Life Support (ATLS) 2026 Curriculum. This document has been
meticulously structured to provide medical professionals, emergency
responders, and trainees with a premium, high-yield review bank. Featuring
rigorously verified clinical scenarios, precise diagnostic priorities, and immediate
life-saving interventions, this resource is designed to optimize retention and
ensure clinical excellence under pressure.
Master Question & Answer Bank
1. A construction worker falls two stories from a building and sustains
bilateral calcaneal fractures. In the emergency department, he is alert, vital
signs are normal, and he is complaining of severe pain in both heels and his
lower back. Lower extremity pulses are strong and there is no other
deformity. The suspected diagnosis is most likely to be confirmed by:
Answer: Complete spine x-ray series. Explanation: Axial loading injuries, such as
falls landing on the feet resulting in calcaneal fractures, have a high correlative
incidence of associated lumbar or thoracic spine fractures. A complete spinal
evaluation is mandatory.
2. The principle of balanced resuscitation is:
Answer: Permissive hypotension and early plasma infusion. Explanation:
Balanced resuscitation avoids excessive crystalloid administration, utilizing
permissive hypotension to limit clot disruption and early plasma administration
(coagulopathy prevention) in major trauma.
3. In managing the head-injured patient, the most important initial step is to:
Answer: Secure airway. Explanation: Preventing secondary brain injury from
hypoxia is paramount. Airway control and adequate oxygenation take absolute
precedence in primary trauma surveys.
, 4. A previously healthy, 70-kg (154-pound) man suffers an estimated acute
blood loss of 2 liters. Which one of the following statements applies to this
patient?
Answer: His systolic blood pressure will be decreased with a narrowed pulse
pressure. Explanation: A loss of 2 liters represents Class III/IV hemorrhage (>30-
40% blood volume), leading to decompensation marked by significant
hypotension and a narrowed pulse pressure from compensatory
vasoconstriction.
5. The diagnosis of shock must include:
Answer: Poor organ perfusion. Explanation: Shock is fundamentally a
physiological state characterized by inadequate cellular and tissue perfusion,
resulting in cellular hypoxia and anaerobic metabolism regardless of systemic
blood pressure.
6. A 7-year-old boy is brought to the emergency department by his parents
several minutes after he fell through a window. He is bleeding profusely from
a 6-cm wound of his medial right thigh.
Answer: Direct pressure. Explanation: Direct manual pressure—supplemented
by pressure dressings or tourniquets if necessary—is the immediate, most
effective initial maneuver to control external life-threatening hemorrhage.
7. For the patient with severe traumatic brain injury, profound hypocarbia
should be avoided to prevent:
Answer: Cerebral vasoconstriction with diminished perfusion. Explanation:
Excessive hyperventilation (leading to profound hypocapnia/hypocarbia) causes
cerebral vasoconstriction, drastically reducing cerebral blood flow and
worsening ischemia.
8. A 25-year-old man is brought to a hospital with a general surgeon after
being involved in a motor vehicle crash. Computed tomography shows an
aortic injury and splenic laceration with free abdominal fluid. His blood
pressure falls to 70 mm Hg after CT. The next step is:
Answer: Exploratory laparotomy. Explanation: Hemodynamic instability in the
face of ongoing internal hemorrhage (splenic rupture) requires immediate
surgical intervention over further diagnostic imaging or secondary repairs.
