In a very rare case a genetic disorder that a person is born with can cause COPD even when the person has not smoked and is not exposed to any lung irritant.
The common symptoms of COPD, which may vary from person to person are:
Exacerbation of COPD is an acute increase in symptoms beyond normal day-to-day variation. The range of symptoms of an exacerbation include from increased breathlessness accompanied by cough and sputum production in mild COPD to life-threatening respiratory failure in severe COPD. Bacterial infection is frequently involved in exacerbations.
Your doctor will diagnose COPD on the basis of your signs and symptoms, your medical and family histories, and test results. Your doctor might ask you to take spirometry test which is the most common pulmonary function test. He/ She will examine you and using a stethoscope listen for wheezing or other abnormal chest sounds. He/ She may also recommend one or more tests to diagnose COPD. Spirometry is used to confirm the diagnosis of COPD in a suspected case. It is done using a spirometer, which is a small machine with a cable attached to a mouthpiece. It is a test which measures how much air you inhale and exhale in one forced breath and also how quickly you exhale.