2. What Conditions Can Spirometry Diagnose?

Spirometry can help doctors diagnose various respiratory conditions including asthma, COPD, cystic fibrosis, and pulmonary fibrosis. Asthma and COPD are both conditions in which the airways narrow. However, in the case of asthma, they can also inflame. Cystic fibrosis is a genetic condition that causes a build-up of sticky mucus in the lungs, while pulmonary fibrosis is scarring of the lungs. If your doctor has already diagnosed you with of one of these conditions, a spirometry test can help them determine how you're responding to treatment.

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