Lung Function Tests | 合法醫療器材資訊網

Lung function tests (also called pulmonary function tests) include a variety of tests that check how well the lungs work. The most basic test is spirometry[1]. This test measures the amount of air the lungs can hold. The test also measures how forcefully one can empty air from the lungs.

Spirometry is used to screen for diseases that affect lung volumes. It also is used to screen for diseases that affect the airways, such as COPD[2] or asthma[3].

Lung volume testing is another commonly performed lung function test. It is more precise than spirometry and measures the volume of air in the lungs, including the air that remains at the end of a normal breath. In addition, a diffusing capacity test measures how easily oxygen enters the bloodstream. Exercise testing helps evaluate causes of shortness of breath. There are also tests to f...