The nurse is supervising a nursing student who is providing care for a thoracotomy patient with a chest tube.
Which finding requires immediate reporting?
Intermittent bubbling in the water seal chamber.
Mild crepitus at the insertion site.
Drainage of 75 mL serosanguineous fluid in 1 hour.
Tracheal deviation away from the affected side.
The Correct Answer is D
Chest tube management requires distinguishing between expected findings and signs of tension pneumothorax. Knowledge of thoracic pressure dynamics and complications is essential. Immediate action is required when anatomical shifts indicate a significant increase in pleural pressure and compromised cardiac output.
Choice A rationale
Intermittent bubbling in the water seal chamber is a normal finding in a client with a pneumothorax. It indicates that air is being evacuated from the pleural space during expiration or coughing and does not require immediate reporting.
Choice B rationale
Mild crepitus, or subcutaneous emphysema, is common near the insertion site as small amounts of air leak into the tissues. While it should be monitored for progression, it is not as urgent as signs of mediastinal shift.
Choice C rationale
Drainage of 75 mL per hour of serosanguineous fluid is generally considered within the acceptable range post thoracotomy. Reporting is typically required if drainage exceeds 100 mL per hour or if the color changes to bright red.
Choice D rationale
This is a classic sign of a tension pneumothorax, a medical emergency. Rapid air accumulation increases intrapleural pressure, pushing the mediastinum and trachea toward the unaffected side, which can lead to rapid obstructive shock and death.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
This scenario requires applying knowledge of burn pathophysiology, fluid resuscitation, and emergency prioritization. Assessing deep tissue damage involves monitoring for systemic complications such as hypovolemia or airway compromise. Critical thinking is needed to distinguish between expected post-burn symptoms and life-threatening physiological shifts.
Choice A rationale
A saturation of 95 percent is within the acceptable normal range of 95 to 100 percent. While chest burns can impact ventilation, this specific value indicates adequate oxygenation and is not currently a priority over circulatory concerns.
Choice B rationale
Normal urinary output is ≥ 0.5 mL/kg/hr or roughly 30 mL/hr. An output of 25 mL/hr indicates poor renal perfusion or hypovolemia. This suggests inadequate fluid resuscitation, which is a life-threatening complication in major burn injuries.
Choice C rationale
Pain is expected with partial-thickness burns due to exposed nerve endings. While severe pain requires intervention, it is considered a psychosocial or non-life-threatening priority compared to hemodynamic instability or organ failure signaled by low urine output.
Choice D rationale
Localized edema is a standard inflammatory response in burn victims caused by increased capillary permeability. It is an expected finding within the first 24 to 48 hours and does not indicate an immediate systemic crisis.
Correct Answer is D
Explanation
Nursing prioritization relies on the ABC framework and identifying the most immediate threat to life. Knowledge of electrolyte imbalances and cardiac conduction must be applied here to recognize that severe hyperkalemia poses an imminent risk of lethal cardiac arrhythmias.
Choice A rationale
A low grade fever of 38.2 C on the first postoperative day is common due to the inflammatory response or atelectasis. While it requires monitoring and lung expansion exercises, it is not an immediate life threat.
Choice B rationale
Severe abdominal pain and nausea are classic symptoms of acute pancreatitis. While the patient is in significant distress and needs analgesia, this presentation is expected for the diagnosis and is second to cardiovascular instability.
Choice C rationale
Confusion and asterixis in cirrhosis indicate hepatic encephalopathy due to elevated ammonia. Normal ammonia is 15 to 45 mcg/dL. This requires treatment with lactulose but is less immediately fatal than a cardiac arrest.
Choice D rationale
A potassium level of 6.8 mEq/L is critically high, as the normal range is 3.5 to 5.0 mEq/L. Peaked T waves indicate myocardial irritability, which can progress rapidly to ventricular fibrillation or asystole, requiring emergent intervention..
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