A m e r i c a' s   H e a l t h   S e a r c h   E n g i n e Pharmacology, and Medical Terminology Lookup

Definition of Pulmonary function test Pulmonary function test: A test designed to measure how well the lungs are working. Pulmonary function tests PFTs gauge how the lungs are carrying out their tasks -- of expanding and contracting when a person inhales and exhales and of exchanging oxygen and carbon dioxide efficiently between the air or other gases within the lungs and the blood. For example, one pulmonary function test calls for the patient to breathe into a machine called a spirometer. It is a mechanical device that records the changes in lung size as air is inhaled and exhaled and the time it takes for the patient to do this task. Common Misspellings: pulmanary function test, pulmenary function test

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