How do u know if ur lung has collapsed?

Pain and SOB.: If spontaneous - usually pain and shortness of breath in a tall thin and young individual. Could happen in an older smoker with the same symptoms.

Examination: Estimated at least 10% spontaneous pneumothorax are asymptomatic. The first line of diagnosis for large pneumothorax is a good history and physical examination (stethoscope). Most smaller pneumothoraces can be diagnosed with good 2 view chest x-ray series. Occasionally, a ct-scan may be necessary.