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ATLS 10th Edition Post Test Actual 200 Questions &
Answers (Verified Answers) Update, 100%
Guaranteed Score Pass ||Complete A+ Guide
QUESTION 1
A 24-year-old male pedestrian, struck by an automobile, is
admitted to the emergency department 1 hour after injury. His
blood pressure is 80/60 mmHg, heart rate 140 beats per minute,
and respiratory rate is 36 per minute. He is lethargic. Oxygen is
delivered via face mask, and two large-caliber IVs are initiated.
Arterial blood gases are obtained. His PaO2 is 118 mmHg (15.7 kPa),
PaCO2 is 30 mmHg (4.0 kPa), and pH is 7.21. The treatment of his
acid-base disorder is best accomplished by:
A. Hyperventilation
B. Restoration of normal perfusion
C. Initiation of low-dose dopamine
D. Administration of sodium bicarbonate
E. Initiation of phenylepinephrine infusion
Answer: B. Restoration of normal perfusion
Rationale: The patient presents with metabolic acidosis (pH
7.21, low PaCO2 indicating compensatory respiratory
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alkalosis) secondary to hypovolemic shock from trauma. The
acidosis is caused by lactic acid accumulation from tissue
hypoperfusion. The definitive treatment is restoring tissue
perfusion through adequate fluid resuscitation and
hemorrhage control, not sodium bicarbonate.
Hyperventilation would further lower PaCO2 without
addressing the root cause. Vasopressors (dopamine,
phenylephrine) are second-line after adequate volume
resuscitation.
QUESTION 2
The highest priority in managing a patient whose injuries include
closed extremity fractures is:
A. Assessing limb perfusion
B. Preventing necrosis of the skin
C. Decompressing compartment syndrome
D. Addressing respiratory insufficiency
E. Identifying crush syndrome
Answer: D. Addressing respiratory insufficiency
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Rationale: According to ATLS principles, the ABCDE survey
prioritizes life threats before extremities. Airway, breathing,
and circulation take precedence over any orthopedic injuries.
Respiratory insufficiency must be identified and treated
immediately during the primary survey, even in the presence
of obvious extremity fractures. Limb assessment occurs
during the secondary survey or as part of circulation
assessment if hemorrhage is present.
QUESTION 3
A 34-year-old female is involved in a motor vehicle crash and is
brought to the emergency department. She is talking, but her voice
is hoarse, and on exposure she has diagonal bruising of the chest
and anterior neck. What is the next step?
A. Direct laryngoscopy to exclude laryngeal trauma
B. Oxygen by non-rebreathing mask
C. Protecting the spine by making her lie down
D. Palpation of the anterior neck
E. Attaching a pulse oximeter to her finger
Answer: D. Palpation of the anterior neck
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Rationale: The findings of hoarseness and anterior neck
bruising raise concern for laryngeal trauma. Before any
instrumentation or advanced imaging, careful palpation of
the anterior neck is essential to assess for crepitus, loss of
landmarks, or expanding hematoma. This quick assessment
guides the need for immediate airway intervention. Pulse
oximetry and oxygen are important but do not precede
physical assessment of the injured area.
QUESTION 4
A 30-year-old male sustains a gunshot wound to the right lower
chest, midway between the nipple and the costal margin. He is
brought by ambulance to a hospital that has full surgical
capabilities. In the emergency department, he is endotracheally
intubated, fluid resuscitation is initiated through two large-caliber
IV lines, and a closed tube thoracostomy is performed, with the
return of 200 ml of blood. A chest x-ray reveals correct placement
of the chest tube and a small residual hemothorax. His blood
pressure is now 70/0 mmHg, and his heart rate is 140 beats per
minute. His hypotension is most likely due to:
ATLS 10th Edition Post Test Actual 200 Questions &
Answers (Verified Answers) Update, 100%
Guaranteed Score Pass ||Complete A+ Guide
QUESTION 1
A 24-year-old male pedestrian, struck by an automobile, is
admitted to the emergency department 1 hour after injury. His
blood pressure is 80/60 mmHg, heart rate 140 beats per minute,
and respiratory rate is 36 per minute. He is lethargic. Oxygen is
delivered via face mask, and two large-caliber IVs are initiated.
Arterial blood gases are obtained. His PaO2 is 118 mmHg (15.7 kPa),
PaCO2 is 30 mmHg (4.0 kPa), and pH is 7.21. The treatment of his
acid-base disorder is best accomplished by:
A. Hyperventilation
B. Restoration of normal perfusion
C. Initiation of low-dose dopamine
D. Administration of sodium bicarbonate
E. Initiation of phenylepinephrine infusion
Answer: B. Restoration of normal perfusion
Rationale: The patient presents with metabolic acidosis (pH
7.21, low PaCO2 indicating compensatory respiratory
,2|Page
alkalosis) secondary to hypovolemic shock from trauma. The
acidosis is caused by lactic acid accumulation from tissue
hypoperfusion. The definitive treatment is restoring tissue
perfusion through adequate fluid resuscitation and
hemorrhage control, not sodium bicarbonate.
Hyperventilation would further lower PaCO2 without
addressing the root cause. Vasopressors (dopamine,
phenylephrine) are second-line after adequate volume
resuscitation.
QUESTION 2
The highest priority in managing a patient whose injuries include
closed extremity fractures is:
A. Assessing limb perfusion
B. Preventing necrosis of the skin
C. Decompressing compartment syndrome
D. Addressing respiratory insufficiency
E. Identifying crush syndrome
Answer: D. Addressing respiratory insufficiency
,3|Page
Rationale: According to ATLS principles, the ABCDE survey
prioritizes life threats before extremities. Airway, breathing,
and circulation take precedence over any orthopedic injuries.
Respiratory insufficiency must be identified and treated
immediately during the primary survey, even in the presence
of obvious extremity fractures. Limb assessment occurs
during the secondary survey or as part of circulation
assessment if hemorrhage is present.
QUESTION 3
A 34-year-old female is involved in a motor vehicle crash and is
brought to the emergency department. She is talking, but her voice
is hoarse, and on exposure she has diagonal bruising of the chest
and anterior neck. What is the next step?
A. Direct laryngoscopy to exclude laryngeal trauma
B. Oxygen by non-rebreathing mask
C. Protecting the spine by making her lie down
D. Palpation of the anterior neck
E. Attaching a pulse oximeter to her finger
Answer: D. Palpation of the anterior neck
, 4|Page
Rationale: The findings of hoarseness and anterior neck
bruising raise concern for laryngeal trauma. Before any
instrumentation or advanced imaging, careful palpation of
the anterior neck is essential to assess for crepitus, loss of
landmarks, or expanding hematoma. This quick assessment
guides the need for immediate airway intervention. Pulse
oximetry and oxygen are important but do not precede
physical assessment of the injured area.
QUESTION 4
A 30-year-old male sustains a gunshot wound to the right lower
chest, midway between the nipple and the costal margin. He is
brought by ambulance to a hospital that has full surgical
capabilities. In the emergency department, he is endotracheally
intubated, fluid resuscitation is initiated through two large-caliber
IV lines, and a closed tube thoracostomy is performed, with the
return of 200 ml of blood. A chest x-ray reveals correct placement
of the chest tube and a small residual hemothorax. His blood
pressure is now 70/0 mmHg, and his heart rate is 140 beats per
minute. His hypotension is most likely due to:
