ACCURATE QUESTIONS WITH WELL ELABORATED
ANSWERS WITH DETAILED RATIONALES (100% CORRECT
VERIFIED SOLUTIONS) CURRENTLY UPDATED VERSION
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1. A 22-year-old man sustains a gunshot wound to the right lower chest.
On arrival, he is tachypnea, with a blood pressure of 80/50 mm Hg and
distended neck veins. Which of the following is the most appropriate
next step?
A) Needle decompression of the right chest
B) Focused Assessment with Sonography in Trauma (FAST)
examination
C) Correct Answer: Pericardiocentesis
D) Chest tube thoracotomy
Rationale: The triad of hypotension, distended neck veins, and a
penetrating chest wound suggests cardiac tamponade. Pericardiocentesis
is both diagnostic and therapeutic in this unstable patient. Needle
decompression would treat tension pneumothorax (which typically
presents with absent breath sounds and hyper resonance, not necessarily
distended neck veins). FAST may delay intervention.
,2. A 45-year-old woman is involved in a high-speed motor vehicle
collision. She arrives with a Glasgow Coma Scale (GCS) score of 13,
blood pressure 110/70 mm Hg, heart rate 110 bpm, and respiratory rate
28 breaths/min. Her left leg is externally rotated and shortened. What is
the priority intervention?
A) Pelvic binder application
B) Correct Answer: Endotracheal intubation
C) Left femur traction splint
D) Chest radiograph
Rationale: The patient has a GCS of 13 (indicating potential airway
compromise) and tachypnea, which may precede respiratory failure.
Definitive airway management is the priority in ATLS primary survey
(A – Airway). Extremity fractures and pelvic injuries are addressed after
stabilizing ABCs.
3. Which of the following is the most reliable sign of adequate volume
resuscitation in a patient with hemorrhagic shock?
A) Normalization of heart rate
B) Correct Answer: Urine output ≥0.5 mL/kg/hour
C) Return of peripheral pulses
D) Improvement in mental status
Rationale: Urine output is a sensitive indicator of end-organ perfusion in
shock resuscitation. While mental status and heart rate can be affected
by pain or other factors, urine output reliably reflects renal perfusion and
adequacy of volume repletion in adults (target 0.5 mL/kg/hr.).
,4. A 30-year-old male pedestrian struck by a car at 40 mph presents with
hypotension, absent breath sounds on the left, and tracheal deviation to
the right. What is the immediate management?
A) Endotracheal intubation
B) Correct Answer: Needle decompression of left chest
C) Left tube thoracotomy
D) Pericardiocentesis
Rationale: Tracheal deviation away from the affected side with absent
breath sounds and hypotension is tension pneumothorax. The ATLS
algorithm prioritizes immediate needle decompression (second
intercostal space, midclavicular line) followed by tube thoracotomy.
5. A patient with blunt abdominal trauma has a positive FAST
examination. The patient’s blood pressure is 90/60 mm Hg after 2 L of
crystalloid. What is the next step?
A) Abdominal computed tomography (CT) scan
B) Correct Answer: Laparotomy
C) Serial abdominal examinations
D) Diagnostic peritoneal lavage (DPL)
Rationale: A positive FAST in an unstable patient (hypotension despite
initial fluid resuscitation) indicates intra-abdominal hemorrhage
requiring immediate operative intervention. CT is not safe in
hemodynamic instability; DPL is largely replaced by FAST.
, 6. In a patient with a severe traumatic brain injury (TBI), which of the
following is the target PaCO2 range during mechanical ventilation?
A) 25–30 mm Hg
B) Correct Answer: 35–40 mm Hg
C) 45–50 mm Hg
D) 50–55 mm Hg
Rationale: Routine hyperventilation (PaCO2 <35 mm Hg) is avoided in
TBI as it causes cerebral vasoconstriction and ischemia. The goal is
normocapnia (35–45 mm Hg). Only transient hyperventilation is used
for impending herniation.
7. A 55-year-old man falls from a ladder and has loss of consciousness
for 1 minute. On exam, he is confused, with blood pressure 160/90 mm
Hg, heart rate 80 bpm, and GCS 14. A head CT is normal. Which of the
following is the most appropriate disposition?
A) Discharge home with head injury instructions
B) Correct Answer: Admission for observation and serial neurologic
exams
C) MRI brain
D) Lumbar puncture
Rationale: Loss of consciousness with persistent confusion (GCS <15)
even with normal CT warrants observation for delayed intracranial