OverviewAbout Pulmonary Function Test
A pulmonary function test (PFT) is a non-invasive procedure measuring how well your lungs work. During the test, you'll be asked to breathe into a spirometer, which measures the amount and speed of air you can inhale and exhale.
A pulmonary function test (PFT) is a non-invasive procedure measuring how well your lungs work. During the test, you'll be asked to breathe into a spirometer, which measures the amount and speed of air you can inhale and exhale. You'll sit upright before the machine and wear nose clips to ensure all air passes through your mouth. You will be guided through various breathing exercises, such as taking deep breaths, exhaling forcefully, or breathing at different rates. These tests may be repeated several times to ensure accuracy.
PFTs can help diagnose asthma, chronic obstructive pulmonary disease (COPD), or other lung disorders. The entire process is painless and typically takes about 30 minutes to complete. Your healthcare provider will use the results to assess your lung function, guide treatment decisions, or monitor the progression of existing lung conditions.
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