Sometimes, in response to disease or trauma, excess air gathers between one or both lungs and the rib cage. This medical phenomenon is called pneumothorax and causes the affected lung to collapse. A collapsed lung can become life-threatening if the condition is not treated in a timely manner. Being aware of the signs and symptoms of a collapsed lung can help a person get appropriate treatment.
Chest Pain
Chest pain and a feeling of tightness can be a sign of a collapsed lung. Pain might increase during an episode of coughing or while taking a deep breath.
Breathing Difficulties
A collapsed lung causes breathing difficulties, according to a 2009 issue of the University of Michigan Health Service's "Adult Heath Advisor." Shortness of breath and dizziness might occur.
Skin Discoloration
A lack of oxygen that is associated with pneumothorax can cause the skin to appear bluish in color, especially in the lips.
Changes in Vital Signs
People who have a collapsed lung might experience a racing heartbeat. Their blood pressure readings might also be lower than normal.
Altered Blood Gas Levels
According to the National Institutes of Health, normal readings for carbon dioxide in the blood measure 35mm to 45mm of mercury (Hg). Readings will be higher when one of the lungs is collapsed. Normal oxygen readings might read lower than 94 percent.
