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Pulmonary function tests (PFTs) are tests that measure how much air the lungs can hold or how much air flows in and out of the lungs. PFTs can help doctors diagnose lung conditions, check how well the lungs respond to medications or check how much the lungs are affected by a certain illness.
There are many types of PFTs. The PFTs your child has depends on their symptoms and medical history. Learn the different types of PFTs here.
Every PFT test is different. Some PFTs take a few minutes. Others can take anywhere from 12-20 minutes. The care team can tell you which PFTs your child will have and how long each one will take.
Here is how you can prepare your child for a PFT:
There are many types of PFTs. The PFTs your child has depends on their symptoms and medical history. See the back of this handout for more information on the different types of PFTs.