How does spirometry aid in the pulmonary disorder diagnosis?

Asthma or copd: Spirometry is a way to measure how the airways of the lungs are working. It is the measure we sue to make the diagnosis of asthma and copd. It is also helpful in other types of lung disease.

Can be diagnostic: Spirometry measure the bellows function of the lungs, the ability to move air in and out. It is primarily used to diagnose and manage obstructive lung diseases like asthma and emphysema. It can also suggest intra- and extra-thoracic airway obstruction.