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Difficulty: EasySurgical and Procedural Interventions

A 28-year-old man is brought to the emergency department via ambulance after a high-speed motor vehicle collision. He is agitated and in severe respiratory distress. Vital signs are heart rate 135/min, blood pressure 75/40 mm Hg, and respiratory rate 32/min. Oxygen saturation is 88% on a non-rebreather mask. Physical examination reveals distended neck veins, absent breath sounds over the right hemithorax, and tracheal deviation to the left. Which of the following is the most appropriate next step in management?

  1. Immediate tube thoracostomy on the rightAnswer
  2. B
    Portable chest radiograph
  3. C
    Computed tomography of the chest
  4. D
    Immediate pericardiocentesis
  5. E
    Endotracheal intubation prior to pleural decompression

Answer

Immediate tube thoracostomy on the right
This patient's presentation of severe hypotension, tachycardia, absent unilateral breath sounds, distended neck veins, and tracheal deviation is the classic clinical picture of a right-sided tension pneumothorax. Tension pneumothorax is a life-threatening emergency causing obstructive shock. The increased intrathoracic pressure compresses the superior and inferior vena cava, severely reducing venous return and cardiac output. Because this is a clinical diagnosis, the most appropriate next step in an unstable patient is immediate pleural decompression (tube or needle thoracostomy) before any imaging is obtained.

Step-by-Step Solution

1
Analyze the patient's vital signs and clinical presentation.
The patient is in obstructive shock (hypotension, tachycardia) with absent right-sided breath sounds, jugular venous distension, and leftward tracheal deviation.
Identifying the classic triad of clinical signs is necessary to rapidly diagnose a tension pneumothorax.
2
Determine the priority of intervention based on hemodynamic stability.
Because the patient is unstable, immediate clinical intervention is required rather than diagnostic confirmation.
Tension pneumothorax is a clinical diagnosis that requires immediate treatment to restore cardiac output and prevent cardiac arrest.
3
Select the appropriate procedural intervention.
Immediate pleural decompression via tube thoracostomy (or needle thoracostomy) on the right side.
Decompressing the pleural space allows the lung to re-expand and relieves the pressure on the mediastinum, instantly restoring venous return to the heart.

Key Concept

Clinical diagnosis and immediate procedural management of tension pneumothorax
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Topics

Surgical and Procedural Interventions

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