Pulmonary function tests (PFTs) include different kinds of breathing tests that measure how well your lungs exchange air. Your lungs help you take air in (inhale) and breathe air out (exhale).
There are many different types of PFTs. Some also measure how well your lungs absorb oxygen into your blood and how exercise affects your lungs.
PFTs are safe and don’t require a healthcare provider to put any tools or instruments inside your body (noninvasive).
Another name for pulmonary function tests is lung function tests.
