A pneumothorax is a possible complication of COPD. Symptoms will depend on the suddenness of the attack and the size of the air leak. The most common, immediate symptom that should be assessed is:

Sharp, stabbing chest pain and shortness of breath

Explanation: Pneumothorax occurs when air leaks into the space between the lungs and chest wall. Symptoms usually include sudden chest pain and shortness of breath. On some occasions, a collapsed lung can be a life-threatening event.

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explanation: