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Full Lung Function Test

The Lung function test (also called pulmonary function tests) checks how well your lungs work. The tests determine how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood. The tests can indicated lung diseases such as Cystic Fibrosis and measures the severity of lung problems. This test is commonly use to check how well treatment for a lung disease is working.

Full Lung Function Test

Other tests-such as residual volume, gas diffusion tests, body plethysmography, inhalation challenge tests, and exercise stress tests-may also be done to determine lung function.


Spirometry is the first and most commonly done lung function test. It measures how much and how quickly you can move air out of your lungs. For this test, you breathe into a mouthpiece attached to a recording device (spirometer). The information collected by the spirometer may be printed out on a chart called a spirogram.

Other Diagnostic Procedures