Spirometry Test

The American Lung Association states that when a spirometry test is performed, the patient is requested to breathe into a tube that is attached to the spirometer. The spirometer measures the rate which air in inhaled and exhaled as well as the lung capacity. The typical spirometer measurement is called “forced expiratory volume in one second,” commonly referred to as FEV1, with the expiratory referring to the exhalation. According to the National Heart, Lung and Blood Institute, the spirometer also records the total amount of the exhalation in a measurement called the “forced vital capacity,” or