A nurse monitoring the intercostal drainage system of a patient with pneumothorax notes intermittent bubbling in the water seal chamber. The most appropriate action would be?

1. A

   Inform the Physician

2. B

   Check for air leak

3. C

   Document the observation

4. D

   Clamp the chest drainage tube

Appeared in: SCTIMST Staff Nurse - 2015 (Set-A)

Explanation

• Intermittent bubbling in the water-seal chamber is a normal and expected finding for a patient with a pneumothorax, especially in the initial period after tube insertion.
• This finding indicates that air is being successfully evacuated from the pleural space as the patient exhales or coughs, which is the therapeutic goal of the chest tube.
• Since this is an expected finding that shows the system is working correctly, the most appropriate action is to document the observation as part of the routine respiratory assessment and continue monitoring.

Why Other Options Were Wrong

• Option A: Informing the physician is not necessary for a normal and expected finding. This action is reserved for abnormal findings, complications, or significant changes in the patient's condition.
• Option B: Checking for an air leak is the appropriate action for continuous bubbling in the water-seal chamber, not intermittent bubbling.
• Option D: Clamping the chest tube is contraindicated and extremely dangerous in this situation. It would prevent air from escaping the pleural space, leading to a rapid buildup of pressure and causing a tension pneumothorax, a life-threatening emergency.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Assessment and management of a chest drainage system for pneumothorax to guide bedside assessment, documentation, and the next nursing action.
• Correctly interpreting chest tube findings is a critical nursing skill for patient safety. Mistaking a normal finding (intermittent bubbling) for a problem could lead to unnecessary and potentially harmful interventions.
• Failure to recognize an abnormal finding (continuous bubbling) can delay the identification and correction of an air leak, compromising the effectiveness of the therapy.
• What if the bubbling, which was previously intermittent, suddenly stops? The nurse should first check for kinks or dependent loops in the tubing. Then, assess the patient's breath sounds. If breath sounds are clear and equal, the lung may have re-expanded. If breath sounds are diminished, it could indicate an obstruction, and the physician should be notified.

How to Approach the Question

• First, identify the key elements of the clinical scenario: a patient with a pneumothorax, an intercostal drainage system, and a specific finding (intermittent bubbling in the water seal chamber).
• Recall the purpose of a chest tube for a pneumothorax: to remove air from the pleural space.
• Analyze the specific finding. 'Bubbling' means air is moving through the system. 'Intermittent' bubbling linked to respiration (exhaling, coughing) means air is coming from the patient's pleural space.
• Classify the finding as either normal/expected or abnormal/unexpected. Intermittent bubbling is a normal, expected sign that the system is working as intended.
• Evaluate the options based on this classification. The most appropriate action for a normal, expected finding is documentation and continued monitoring.
• Eliminate other options: Checking for a leak is for continuous bubbling. Informing the physician is for abnormal findings. Clamping is dangerous and contraindicated.

Concept Tested & Keywords

• Concept Tested: Assessment and management of a chest drainage system for pneumothorax.
• Stem keywords: intercostal drainage system, pneumothorax, intermittent bubbling, water seal chamber
• Lead-in keywords: most appropriate action
• Negative lead-in flag: false

Question ID

QT3xadinRlyZCa6t6yY0FQ

Copy ID

Reference Book

E6 Nursing Fundamentals Potter Perry 12e Part 5 pp. 37-39, 36-38

E6 Nursing Fundamentals Taylor p. 734-736