Asthma Testing

Pulmonary function tests help diagnose lung problems

Spirometry

This non-invasive, simple breathing test measures how much and how fast you can blow air out of your lungs. It is used to determine if airway obstruction is present, and to monitor asthma control. Spirometry also measures improvement in obstruction after asthma inhaler treatment with a short acting bronchodilator. The bronchodilator, albuterol, relaxes the airways, allowing air to pass more freely.

Exhaled nitric oxide (FENo)

FENo is another type of breathing test which measures allergic inflammation in the airway. Nitric oxide, a gas produced in the lung, indicates the presence of inflammation. During the simple process, the level of nitric oxide is calculated. This test can be utilized for both initial evaluation, and to monitor control of a number of lung disorders.