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Difficulty: MediumReduction of Risk Potential

A nurse is assessing a client who returned to the medical-surgical unit 45 minutes ago following a therapeutic thoracentesis for a large right-sided pleural effusion. During the procedure, 1,200 mL of fluid was removed. Which assessment finding is the most critical indicator that the client is developing a severe physiological complication requiring immediate intervention?

  1. Sudden onset of tachypnea, absent breath sounds on the right side, and a tracheal deviation toward the leftAnswer
  2. B
    Arterial blood gas results indicating a pH of 7.46, a PaCO2 of 32 mm Hg, and a PaO2 of 88 mm Hg
  3. C
    The client preferring to lie on the unaffected side and expressing a refusal to lie flat
  4. D
    Client report of a pulling sensation and localized pain rated as 4 out of 10 at the puncture site

Answer

The sudden onset of tachypnea, absent breath sounds on the right side, and a tracheal deviation toward the left.
The correct answer highlights sudden tachypnea, absent breath sounds on the right side, and a tracheal deviation toward the left. These are classic, late-stage clinical manifestations of a tension pneumothorax, a severe and life-threatening complication that can occur after a thoracentesis if the visceral pleura is punctured. The tracheal deviation away from the affected side indicates a critical pressure buildup in the pleural space, requiring emergent needle decompression or chest tube placement to prevent cardiovascular collapse.

Step-by-Step Solution

1
Analyze the clinical scenario and the recent procedure.
The client is 45 minutes post-thoracentesis with a large volume (1,200 mL) of fluid removed.
Large volume fluid removal during a thoracentesis places the client at a high risk for complications such as pneumothorax, hemothorax, or re-expansion pulmonary edema.
2
Evaluate each assessment finding to differentiate between expected post-procedural symptoms and critical physiological decompensation.
Mild respiratory alkalosis, positional preferences to avoid lying flat, and moderate localized pain are identified as expected or non-emergent findings.
Recognizing normal compensatory mechanisms and expected procedural discomfort prevents the nurse from misallocating emergency resources.
3
Identify the finding that represents an immediate threat to airway, breathing, or circulation (ABCs).
Tachypnea, unilaterally absent breath sounds, and tracheal deviation are identified as an acute emergency.
These are classic clinical manifestations of a tension pneumothorax, a life-threatening complication that requires rapid provider notification and intervention.

Key Concept

Monitoring for and identifying early signs of post-thoracentesis complications, specifically tension pneumothorax, to reduce client risk.
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Topics

Reduction of Risk Potential

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