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Difficulty: MediumPhysiological Adaptation

A client is being monitored on the surgical unit 24 hours after a thoracotomy with a closed chest drainage system in place. Which assessment findings should the practical nurse immediately report to the registered nurse as indicators of a developing tension pneumothorax? Select all that apply.

  1. Tracheal deviation away from the operative sideAnswer
  2. Sudden decrease in blood pressure with severe tachycardiaAnswer
  3. Asymmetrical chest wall movement during inspirationAnswer
  4. D
    Continuous gentle bubbling in the suction control chamber
  5. E
    Collection of 45 mL of serosanguineous drainage in the past hour
  6. F
    Reports of sharp incisional pain during deep breathing

Answer

The findings that indicate a developing tension pneumothorax are tracheal deviation away from the operative side, sudden decrease in blood pressure with severe tachycardia, and asymmetrical chest wall movement during inspiration.
A tension pneumothorax is a medical emergency where air accumulates in the pleural space with each breath but cannot escape. The rising intrathoracic pressure collapses the affected lung (causing asymmetrical chest movement) and shifts the mediastinal structures toward the unaffected side (causing tracheal deviation). The immense pressure also compresses the heart and superior/inferior vena cava, drastically reducing venous return and cardiac output, which manifests rapidly as severe hypotension and compensatory tachycardia.

Step-by-Step Solution

1
Analyze the client's clinical scenario.
The client is 24 hours post-thoracotomy with a closed chest drainage system, putting them at risk for respiratory complications such as a tension pneumothorax if the system malfunctions or air leaks rapidly into the pleural space.
Understanding the client's surgical history establishes the baseline risks for acute decompensation.
2
Identify the pathophysiology and classic signs of a tension pneumothorax.
A tension pneumothorax involves trapped air in the pleural space that causes mediastinal shift (tracheal deviation), cardiovascular compression (hypotension, tachycardia), and collapsed lung (asymmetrical chest movement, absent breath sounds).
Matching physiological concepts to clinical manifestations is required to evaluate the assessment data.
3
Evaluate each assessment finding against expected post-operative baselines versus emergency indicators.
Tracheal deviation, hemodynamic collapse, and asymmetrical chest movement are critical emergencies. Gentle bubbling in the suction chamber, 45 mL of drainage, and incisional pain are expected post-thoracotomy findings.
Differentiating between expected post-operative data and signs of acute physiological failure ensures safe and timely reporting to the registered nurse.

Key Concept

Tension pneumothorax is a life-threatening complication characterized by air trapping in the pleural space, leading to mediastinal shift, asymmetrical chest expansion, and severe hemodynamic compromise (hypotension and tachycardia) due to compressed great vessels.
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Topics

Physiological Adaptation

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