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Difficulty: MediumReduction of Risk Potential

A charge nurse is conducting clinical rounds on a medical-surgical unit and reviewing the status of four clients. Which client assessment finding indicates a life-threatening complication that requires the most urgent intervention?

  1. Left-sided thoracentesis 1 hour ago; exhibits a heart rate of 124 beats per minute with the trachea shifted to the right.Answer
  2. B
    Lumbar puncture 3 hours ago; resting continuously in a supine position with the head of the bed completely flat.
  3. C
    Advanced chronic obstructive pulmonary disease; arterial blood gas reveals a pH of 7.36, PaCO2 of 54 mm Hg, and HCO3 of 30 mEq/L.
  4. D
    Returned from a colonoscopy; primary nurse is auscultating all four abdominal quadrants prior to percussion and palpation.

Answer

The client who had a thoracentesis and now exhibits tachycardia with a tracheal shift requires immediate intervention.
Following a thoracentesis, the lung or visceral pleura may be inadvertently punctured, allowing air to enter the pleural space with each breath but not escape. This creates a tension pneumothorax. The trapped air rapidly increases intrathoracic pressure, collapsing the lung and pushing the mediastinum (including the trachea) toward the unaffected right side. Combined with tachycardia (a compensatory response to decreased venous return and cardiac output), this represents a severe cardiovascular and respiratory emergency requiring immediate physician notification for chest tube insertion.

Step-by-Step Solution

1
Analyze the post-thoracentesis client.
Tachycardia and tracheal deviation away from the affected side are identified as classic signs of a tension pneumothorax.
Air trapping in the pleural space increases intrathoracic pressure, pushing the mediastinum and compressing the heart, which is a life-threatening emergency.
2
Evaluate the post-lumbar puncture client.
Lying flat and supine is identified as the correct standard of care.
Remaining flat for 4 to 8 hours prevents cerebrospinal fluid (CSF) leakage and drastically reduces the risk of a spinal headache.
3
Interpret the arterial blood gas (ABG) for the client with COPD.
The ABG shows a normal pH with elevated CO2 and elevated HCO3.
This indicates fully compensated respiratory acidosis, which is the expected chronic baseline for advanced COPD, not an acute crisis.
4
Review the physical assessment sequence.
Auscultating before palpation is identified as correct.
Palpating the abdomen first can artificially stimulate bowel sounds, so auscultation must always come first.

Key Concept

Recognizing signs of a tension pneumothorax as a critical post-procedure complication requiring immediate intervention.

Alternative Method

When prioritizing clients, always apply the ABCs (Airway, Breathing, Circulation). A tracheal shift and tachycardia directly threaten Airway and Circulation, making it the undeniable priority over expected positioning, chronic baselines, and standard assessment techniques.
Estimated Time:1m 30s
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Reduction of Risk Potential

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