ATLS 10th Edition Post-Test: Comprehensive
Practice Exam| Questions with Solutions with
Rationale| Updated 2026/2027| Guaranteed
Pass
Instructions: This exam is designed to test your knowledge of the core concepts
and clinical decision-making algorithms presented in the ATLS 10th Edition. Select
the single best answer for each question. A detailed rationale is provided for each
Correct Answer to reinforce key learning points.
Multiple Choice
1. A 45-year-old male is brought to the emergency department (ED) after a
high-speed motor vehicle collision. He is unresponsive with a GCS of 6. His
airway is patent, but his breathing is shallow and irregular. What is the most
appropriate immediate next step in the primary survey?
A) Perform a jaw-thrust maneuver.
B) Perform a head-tilt, chin-lift maneuver.
C) Intubate the patient.
D) Apply a cervical collar.
Correct Answer: C) Intubate the patient.
Rationale: The primary survey follows the "ABCs." The patient's airway is
currently patent (A is secure), but his breathing (B) is inadequate due to a low GCS
(which indicates an inability to protect his own airway). The loss of protective
reflexes and shallow breathing are indications for definitive airway management.
Intubation is the definitive method to secure the airway and provide ventilatory
support. A jaw-thrust maneuver is used to open an airway in a patient with a
suspected cervical spine injury, but this patient is beyond that point and needs a
definitive airway. A head-tilt, chin-lift is contraindicated in trauma patients with a
potential C-spine injury. A cervical collar is part of the "C" (Circulation with
hemorrhage control) and "Disability" (spine protection) steps but is not the
immediate priority when breathing is inadequate.
,2. A 22-year-old female pedestrian is struck by a car. She is hypotensive and
tachycardic. The FAST (Focused Assessment with Sonography for Trauma)
exam is positive for fluid in the peritoneal cavity. Which of the following is the
most appropriate next step in management?
A) Order a CT scan of the abdomen and pelvis.
B) Immediate surgical consultation for laparotomy.
C) Perform a diagnostic peritoneal lavage (DPL).
D) Administer 2 L of crystalloid and reassess.
Correct Answer: B) Immediate surgical consultation for laparotomy.
Rationale: A positive FAST exam in a hypotensive patient indicates the presence
of intra-abdominal hemorrhage, which is a source of life-threatening shock. The
patient is in unstable (hypotensive) condition. In an unstable patient with a positive
FAST, the appropriate course of action is to proceed directly to the operating room
for a therapeutic laparotomy to control the source of bleeding. A CT scan is for
hemodynamically stable patients. A DPL is an alternative if FAST is unavailable or
inconclusive but is not the primary choice if a positive FAST is available and the
patient is unstable. While fluid resuscitation is ongoing, it does not replace the
definitive need for surgical hemorrhage control in this scenario.
3. A 30-year-old male has a suspected pelvic fracture after a fall from a height.
He is receiving blood products. Which of the following findings would be the
most concerning for an ongoing, life-threatening hemorrhage from a pelvic
source?
A) Bruising over the iliac crest.
B) Blood at the urethral meatus.
C) Instability on pelvic compression.
D) A pulse oximetry reading of 92%.
Correct Answer: C) Instability on pelvic compression.
Rationale: Mechanical instability of the pelvic ring (identified on pelvic
compression/springing or by plain radiography) is a key indicator of severe pelvic
fractures that are likely to be associated with significant, life-threatening
hemorrhage. The pelvic volume can hold a large amount of blood. Bruising is a
, sign of injury but not specific for active hemorrhage. Blood at the urethral meatus
suggests a urethral injury, which can be associated with pelvic fractures but is not a
direct sign of ongoing massive hemorrhage. A pulse oximetry of 92% is concerning
for hypoxia but is not specific for pelvic hemorrhage.
4. A patient is being assessed for hemorrhagic shock. He has a heart rate of
120 bpm, a blood pressure of 90/60 mmHg, and a respiratory rate of 22. He is
pale and diaphoretic. In the initial resuscitation, what is the primary endpoint
of fluid resuscitation?
A) Restoration of a normal heart rate.
B) Achieving a systolic blood pressure > 110 mmHg.
C) Normalization of urine output to > 0.5 mL/kg/hr.
D) Restoration of palpable peripheral pulses and adequate organ perfusion.
Correct Answer: D) Restoration of palpable peripheral pulses and adequate
organ perfusion.
Rationale: In ATLS, the goal of initial fluid resuscitation in a patient with
hemorrhagic shock is to restore adequate organ perfusion, not necessarily to
achieve a "normal" blood pressure. The endpoint is "permissive hypotension" (or
hypotensive resuscitation) until surgical control of bleeding can be achieved. This
aims to prevent the "popping of the clot" that can occur with aggressive fluid
resuscitation. Palpable peripheral pulses and an improved mental status are clinical
signs of restored perfusion. A systolic BP > 110 mmHg or a normal heart rate
should not be the primary target in the actively bleeding patient, as this can worsen
hemorrhage. Urine output is a good indicator of perfusion but is a secondary
endpoint and can take time to reflect changes.
5. A 55-year-old male is involved in a motorcycle collision. He has a GCS of 14,
is complaining of severe chest pain, and has a respiratory rate of 28. On
examination, his trachea is deviated to the left, and there is absent breath
sounds on the right side. What is the most appropriate immediate
intervention?
A) Endotracheal intubation.
Practice Exam| Questions with Solutions with
Rationale| Updated 2026/2027| Guaranteed
Pass
Instructions: This exam is designed to test your knowledge of the core concepts
and clinical decision-making algorithms presented in the ATLS 10th Edition. Select
the single best answer for each question. A detailed rationale is provided for each
Correct Answer to reinforce key learning points.
Multiple Choice
1. A 45-year-old male is brought to the emergency department (ED) after a
high-speed motor vehicle collision. He is unresponsive with a GCS of 6. His
airway is patent, but his breathing is shallow and irregular. What is the most
appropriate immediate next step in the primary survey?
A) Perform a jaw-thrust maneuver.
B) Perform a head-tilt, chin-lift maneuver.
C) Intubate the patient.
D) Apply a cervical collar.
Correct Answer: C) Intubate the patient.
Rationale: The primary survey follows the "ABCs." The patient's airway is
currently patent (A is secure), but his breathing (B) is inadequate due to a low GCS
(which indicates an inability to protect his own airway). The loss of protective
reflexes and shallow breathing are indications for definitive airway management.
Intubation is the definitive method to secure the airway and provide ventilatory
support. A jaw-thrust maneuver is used to open an airway in a patient with a
suspected cervical spine injury, but this patient is beyond that point and needs a
definitive airway. A head-tilt, chin-lift is contraindicated in trauma patients with a
potential C-spine injury. A cervical collar is part of the "C" (Circulation with
hemorrhage control) and "Disability" (spine protection) steps but is not the
immediate priority when breathing is inadequate.
,2. A 22-year-old female pedestrian is struck by a car. She is hypotensive and
tachycardic. The FAST (Focused Assessment with Sonography for Trauma)
exam is positive for fluid in the peritoneal cavity. Which of the following is the
most appropriate next step in management?
A) Order a CT scan of the abdomen and pelvis.
B) Immediate surgical consultation for laparotomy.
C) Perform a diagnostic peritoneal lavage (DPL).
D) Administer 2 L of crystalloid and reassess.
Correct Answer: B) Immediate surgical consultation for laparotomy.
Rationale: A positive FAST exam in a hypotensive patient indicates the presence
of intra-abdominal hemorrhage, which is a source of life-threatening shock. The
patient is in unstable (hypotensive) condition. In an unstable patient with a positive
FAST, the appropriate course of action is to proceed directly to the operating room
for a therapeutic laparotomy to control the source of bleeding. A CT scan is for
hemodynamically stable patients. A DPL is an alternative if FAST is unavailable or
inconclusive but is not the primary choice if a positive FAST is available and the
patient is unstable. While fluid resuscitation is ongoing, it does not replace the
definitive need for surgical hemorrhage control in this scenario.
3. A 30-year-old male has a suspected pelvic fracture after a fall from a height.
He is receiving blood products. Which of the following findings would be the
most concerning for an ongoing, life-threatening hemorrhage from a pelvic
source?
A) Bruising over the iliac crest.
B) Blood at the urethral meatus.
C) Instability on pelvic compression.
D) A pulse oximetry reading of 92%.
Correct Answer: C) Instability on pelvic compression.
Rationale: Mechanical instability of the pelvic ring (identified on pelvic
compression/springing or by plain radiography) is a key indicator of severe pelvic
fractures that are likely to be associated with significant, life-threatening
hemorrhage. The pelvic volume can hold a large amount of blood. Bruising is a
, sign of injury but not specific for active hemorrhage. Blood at the urethral meatus
suggests a urethral injury, which can be associated with pelvic fractures but is not a
direct sign of ongoing massive hemorrhage. A pulse oximetry of 92% is concerning
for hypoxia but is not specific for pelvic hemorrhage.
4. A patient is being assessed for hemorrhagic shock. He has a heart rate of
120 bpm, a blood pressure of 90/60 mmHg, and a respiratory rate of 22. He is
pale and diaphoretic. In the initial resuscitation, what is the primary endpoint
of fluid resuscitation?
A) Restoration of a normal heart rate.
B) Achieving a systolic blood pressure > 110 mmHg.
C) Normalization of urine output to > 0.5 mL/kg/hr.
D) Restoration of palpable peripheral pulses and adequate organ perfusion.
Correct Answer: D) Restoration of palpable peripheral pulses and adequate
organ perfusion.
Rationale: In ATLS, the goal of initial fluid resuscitation in a patient with
hemorrhagic shock is to restore adequate organ perfusion, not necessarily to
achieve a "normal" blood pressure. The endpoint is "permissive hypotension" (or
hypotensive resuscitation) until surgical control of bleeding can be achieved. This
aims to prevent the "popping of the clot" that can occur with aggressive fluid
resuscitation. Palpable peripheral pulses and an improved mental status are clinical
signs of restored perfusion. A systolic BP > 110 mmHg or a normal heart rate
should not be the primary target in the actively bleeding patient, as this can worsen
hemorrhage. Urine output is a good indicator of perfusion but is a secondary
endpoint and can take time to reflect changes.
5. A 55-year-old male is involved in a motorcycle collision. He has a GCS of 14,
is complaining of severe chest pain, and has a respiratory rate of 28. On
examination, his trachea is deviated to the left, and there is absent breath
sounds on the right side. What is the most appropriate immediate
intervention?
A) Endotracheal intubation.
