How is COPD Diagnosed?


Spirometry is the test to diagnose COPD or to confirm a person has COPD. It measures how much and how fast air can move in and out of the lungs.

If the airflow out of the lungs is reduced significantly, a person likely has COPD.

Spirometry can find problems even before a person has symptoms of COPD. It also helps determine the severity of COPD.

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